TY  - JOUR
AU  - Zeremski, Tijana
AU  - Vasin, Jovica
AU  - Milić, Stanko
AU  - Sekulić, Petar
AU  - Hansman, Stefan
AU  - Bursić, Vojislava
PY  - 2016
UR  - http://fiver.ifvcns.rs/handle/123456789/1607
AB  - Aldrin, endrin and dieldrin are highly toxic and persistent cyclodiene-type organochlorine pesticides. Although these compounds have been banned over the last few decades in many countries, they can still be found in the environment, especially in the agricultural soil. In order to determine the residue levels of cyclodiene-type organochlorine pesticides in soils of Vojvodina Province, and to obtain detailed information on their spatial distribution, 1370 soil samples under different land uses were collected from Vojvodina Province and analyzed for the presence of aldrin, dieldrin and endrin. The residues of those pesticides residues of those pesticides residues of those pesticides residues of those pesticides residues of those pesticides residues of those pesticides residues of those pesticides were detected in the soils of Vojvodina in measureable concentrations and dieldrin was the most dominant compound in the soil. However, the concentrations of analysed cyclodiene-type organochlorine pesticides in the most soil samples from Vojvodina province were lower than Dutch target values for soil quality. Soil organic matter and clay content were found to be positively associated with aldrin content while clay content was found to be negatively associated with endrin.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of The Serbian Chemical Society
T1  - Occurrence and distribution of the cyclodiene-type organochlorine pesticides in soils of Vojvodina Province, Serbia
EP  - 716
IS  - 6
SP  - 707
VL  - 81
DO  - 10.2298/JSC151212015Z
ER  - 

@article{
author = "Zeremski, Tijana and Vasin, Jovica and Milić, Stanko and Sekulić, Petar and Hansman, Stefan and Bursić, Vojislava",
year = "2016",
abstract = "Aldrin, endrin and dieldrin are highly toxic and persistent cyclodiene-type organochlorine pesticides. Although these compounds have been banned over the last few decades in many countries, they can still be found in the environment, especially in the agricultural soil. In order to determine the residue levels of cyclodiene-type organochlorine pesticides in soils of Vojvodina Province, and to obtain detailed information on their spatial distribution, 1370 soil samples under different land uses were collected from Vojvodina Province and analyzed for the presence of aldrin, dieldrin and endrin. The residues of those pesticides residues of those pesticides residues of those pesticides residues of those pesticides residues of those pesticides residues of those pesticides residues of those pesticides were detected in the soils of Vojvodina in measureable concentrations and dieldrin was the most dominant compound in the soil. However, the concentrations of analysed cyclodiene-type organochlorine pesticides in the most soil samples from Vojvodina province were lower than Dutch target values for soil quality. Soil organic matter and clay content were found to be positively associated with aldrin content while clay content was found to be negatively associated with endrin.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of The Serbian Chemical Society",
title = "Occurrence and distribution of the cyclodiene-type organochlorine pesticides in soils of Vojvodina Province, Serbia",
pages = "716-707",
number = "6",
volume = "81",
doi = "10.2298/JSC151212015Z"
}

Zeremski, T., Vasin, J., Milić, S., Sekulić, P., Hansman, S.,& Bursić, V.. (2016). Occurrence and distribution of the cyclodiene-type organochlorine pesticides in soils of Vojvodina Province, Serbia. in Journal of The Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 81(6), 707-716.
https://doi.org/10.2298/JSC151212015Z

Zeremski T, Vasin J, Milić S, Sekulić P, Hansman S, Bursić V. Occurrence and distribution of the cyclodiene-type organochlorine pesticides in soils of Vojvodina Province, Serbia. in Journal of The Serbian Chemical Society. 2016;81(6):707-716.
doi:10.2298/JSC151212015Z .

Zeremski, Tijana, Vasin, Jovica, Milić, Stanko, Sekulić, Petar, Hansman, Stefan, Bursić, Vojislava, "Occurrence and distribution of the cyclodiene-type organochlorine pesticides in soils of Vojvodina Province, Serbia" in Journal of The Serbian Chemical Society, 81, no. 6 (2016):707-716,
https://doi.org/10.2298/JSC151212015Z . .

TY  - JOUR
AU  - Nešić, Ljiljana
AU  - Vasin, Jovica
AU  - Belić, Milivoj
AU  - Ćirić, Vladimir
AU  - Gligorijević, Jovana
AU  - Milunović, Katarina
AU  - Sekulić, Petar
PY  - 2015
UR  - http://fiver.ifvcns.rs/handle/123456789/1416
AB  - The colloidal complex of soil consists of humus and clay, the most important acidoids which are able to create the bonds between oppositely charged ions (cations) through the forces strong enough to provide protection from leaching, and also weak enough to enable absorption through the plant root. This ability becomes more pronounced if the degree of dispersity is higher, i.e. if particles have smaller diameters. Total of 435 soil samples were collected from the surface horizon in 2011, for the purpose of soil fertility control in Vojvodina and prevention of its possible degradation in broader terms. This paper presents a part of study through selected representative soil samples, related to the research results of mechanical composition, basic chemical properties, and cation-exchange capacity in the most frequent types of soils in North Bačka and Banat (chernozem, fluvisol, semiglay, humoglay, solonchak, solonetz), due to the fact that soil fertility and its ecological function in environment protection largely depend on the studied properties. The average content of clay was 25.26%, ranging from 5.76 to 49.44%, the average content of humus was 3.10%, ranging between 1.02 and 4.30%, while the average value of CEC was 27.30 cmol/kg, ranging between 12.03 and 46.06 cmol/kg. Soils with higher content of clay and humus have greater cation-exchange capacity. According to the established average values of CEC in cmol/kg, the order of soil types is as follows: solonetz (40.06), semiglay (31.98), humoglay (30.98), solonchak (26.62), chernozem (22.72), and fluvisol (22.40). Research results have shown that cation-exchange capacity depends on clay fraction and humus content. Higher correlation coefficient between CEC and clay, compared to CEC and humus, indicates that clay content compared to humus content has greater effect on cation-exchange capacity.
AB  - Koloidni kompleks zemljišta sadrži humus i glinu kao najvažnije acidoide putem kojih ima sposobnost vezivanja jona suprotnog naelektrisanja (katjoni) silama dovoljno snažnim za zaštitu od ispiranja, a istovremeno dovoljno slabim za prijem putem korena biljke. Ova sposobnost je utoliko jače izražena ukoliko je stepen disperznosti veći, tj. ukoliko je prečnik čestica manji. U cilju kontrole plodnosti zemljišta Vojvodine i sprečavanja njihove eventualne degradacije u širem smislu, u toku 2011. prikupljeno je 435 uzoraka zemljišta iz površinskog horizonta. U ovom radu je prikazan deo istraživanja u izabranim reprezentativnim uzorcima, koja se odnose na rezultate istraživanja mehaničkog sastava, osnovnih hemijskih svojstava kao i kapaciteta adsorpcije katjona u najzastupljenijim tipovima zemljišta sa područja severne Bačke i Banata (černozem, fluvisol, semiglej, humoglej, solončak, solonjec), s obzirom da plodnost zemljišta kao i njegova ekološka funkcija u zaštiti životne sredine u velikoj meri zavise od ispitivanih osobina. Srednji sadržaj gline iznosio je 25,26% i kretao se u granicama od 5,76 do 49,44%, srednji sadržaj humusa 3,10% i kretao se u granicama od 1,02 do 4,30%, dok je srednja vrednost CEC -a iznosila 27,30 cmol/kg i kretala se u granicama od 12,03 do 46,06 cmol/kg. Većim kapacitetom adsorpcije katjona odlikuju se zemljišta koja sadrže više gline i humusa. Prema utvrđenim srednjim vrednostima CEC-a u cmol/kg, redosled ispitivanih tipova zemljišta je sledeći: solonjec (40,06), semiglej (31,98), humoglej (30,98), solončak (26,62), černozem (22,72) i fluvisol (22,40). Rezultati istraživanja u celini su pokazali da kapacitet adsorpcije katjona zavisi od sadržaja frakcije gline i sadržaja humusa. Veći koeficijent korelacije između CEC-a i gline nego između CEC-a i humusa ukazuje da sadržaj gline ima veći uticaj na kapacitet adsorpcije katjona od sadržaja humusa.
PB  - Institut za ratarstvo i povrtarstvo, Novi Sad
T2  - Ratarstvo i povrtarstvo / Field and Vegetable Crops Research
T1  - The colloid fraction and cation-exchange capacity in the soils of Vojvodina, Serbia
T1  - Koloidna frakcija i kapacitet adsorpcije katjona u nekim zemljištima Vojvodine
EP  - 23
IS  - 1
SP  - 18
VL  - 52
DO  - 10.5937/ratpov52-7720
ER  - 

@article{
author = "Nešić, Ljiljana and Vasin, Jovica and Belić, Milivoj and Ćirić, Vladimir and Gligorijević, Jovana and Milunović, Katarina and Sekulić, Petar",
year = "2015",
abstract = "The colloidal complex of soil consists of humus and clay, the most important acidoids which are able to create the bonds between oppositely charged ions (cations) through the forces strong enough to provide protection from leaching, and also weak enough to enable absorption through the plant root. This ability becomes more pronounced if the degree of dispersity is higher, i.e. if particles have smaller diameters. Total of 435 soil samples were collected from the surface horizon in 2011, for the purpose of soil fertility control in Vojvodina and prevention of its possible degradation in broader terms. This paper presents a part of study through selected representative soil samples, related to the research results of mechanical composition, basic chemical properties, and cation-exchange capacity in the most frequent types of soils in North Bačka and Banat (chernozem, fluvisol, semiglay, humoglay, solonchak, solonetz), due to the fact that soil fertility and its ecological function in environment protection largely depend on the studied properties. The average content of clay was 25.26%, ranging from 5.76 to 49.44%, the average content of humus was 3.10%, ranging between 1.02 and 4.30%, while the average value of CEC was 27.30 cmol/kg, ranging between 12.03 and 46.06 cmol/kg. Soils with higher content of clay and humus have greater cation-exchange capacity. According to the established average values of CEC in cmol/kg, the order of soil types is as follows: solonetz (40.06), semiglay (31.98), humoglay (30.98), solonchak (26.62), chernozem (22.72), and fluvisol (22.40). Research results have shown that cation-exchange capacity depends on clay fraction and humus content. Higher correlation coefficient between CEC and clay, compared to CEC and humus, indicates that clay content compared to humus content has greater effect on cation-exchange capacity., Koloidni kompleks zemljišta sadrži humus i glinu kao najvažnije acidoide putem kojih ima sposobnost vezivanja jona suprotnog naelektrisanja (katjoni) silama dovoljno snažnim za zaštitu od ispiranja, a istovremeno dovoljno slabim za prijem putem korena biljke. Ova sposobnost je utoliko jače izražena ukoliko je stepen disperznosti veći, tj. ukoliko je prečnik čestica manji. U cilju kontrole plodnosti zemljišta Vojvodine i sprečavanja njihove eventualne degradacije u širem smislu, u toku 2011. prikupljeno je 435 uzoraka zemljišta iz površinskog horizonta. U ovom radu je prikazan deo istraživanja u izabranim reprezentativnim uzorcima, koja se odnose na rezultate istraživanja mehaničkog sastava, osnovnih hemijskih svojstava kao i kapaciteta adsorpcije katjona u najzastupljenijim tipovima zemljišta sa područja severne Bačke i Banata (černozem, fluvisol, semiglej, humoglej, solončak, solonjec), s obzirom da plodnost zemljišta kao i njegova ekološka funkcija u zaštiti životne sredine u velikoj meri zavise od ispitivanih osobina. Srednji sadržaj gline iznosio je 25,26% i kretao se u granicama od 5,76 do 49,44%, srednji sadržaj humusa 3,10% i kretao se u granicama od 1,02 do 4,30%, dok je srednja vrednost CEC -a iznosila 27,30 cmol/kg i kretala se u granicama od 12,03 do 46,06 cmol/kg. Većim kapacitetom adsorpcije katjona odlikuju se zemljišta koja sadrže više gline i humusa. Prema utvrđenim srednjim vrednostima CEC-a u cmol/kg, redosled ispitivanih tipova zemljišta je sledeći: solonjec (40,06), semiglej (31,98), humoglej (30,98), solončak (26,62), černozem (22,72) i fluvisol (22,40). Rezultati istraživanja u celini su pokazali da kapacitet adsorpcije katjona zavisi od sadržaja frakcije gline i sadržaja humusa. Veći koeficijent korelacije između CEC-a i gline nego između CEC-a i humusa ukazuje da sadržaj gline ima veći uticaj na kapacitet adsorpcije katjona od sadržaja humusa.",
publisher = "Institut za ratarstvo i povrtarstvo, Novi Sad",
journal = "Ratarstvo i povrtarstvo / Field and Vegetable Crops Research",
title = "The colloid fraction and cation-exchange capacity in the soils of Vojvodina, Serbia, Koloidna frakcija i kapacitet adsorpcije katjona u nekim zemljištima Vojvodine",
pages = "23-18",
number = "1",
volume = "52",
doi = "10.5937/ratpov52-7720"
}

Nešić, L., Vasin, J., Belić, M., Ćirić, V., Gligorijević, J., Milunović, K.,& Sekulić, P.. (2015). The colloid fraction and cation-exchange capacity in the soils of Vojvodina, Serbia. in Ratarstvo i povrtarstvo / Field and Vegetable Crops Research
Institut za ratarstvo i povrtarstvo, Novi Sad., 52(1), 18-23.
https://doi.org/10.5937/ratpov52-7720

Nešić L, Vasin J, Belić M, Ćirić V, Gligorijević J, Milunović K, Sekulić P. The colloid fraction and cation-exchange capacity in the soils of Vojvodina, Serbia. in Ratarstvo i povrtarstvo / Field and Vegetable Crops Research. 2015;52(1):18-23.
doi:10.5937/ratpov52-7720 .

Nešić, Ljiljana, Vasin, Jovica, Belić, Milivoj, Ćirić, Vladimir, Gligorijević, Jovana, Milunović, Katarina, Sekulić, Petar, "The colloid fraction and cation-exchange capacity in the soils of Vojvodina, Serbia" in Ratarstvo i povrtarstvo / Field and Vegetable Crops Research, 52, no. 1 (2015):18-23,
https://doi.org/10.5937/ratpov52-7720 . .

TY  - JOUR
AU  - Žeželj, Branislav
AU  - Sekulić, Petar
AU  - Hojka, Zdravko
AU  - Ninkov, Jordana
PY  - 2015
UR  - http://fiver.ifvcns.rs/handle/123456789/1470
AB  - This study gives a detailed analysis of parameters for determination of basic criteria for field-pipe drainage, since desalinisation (Land Reclamation) and amelioration of degraded saline soils and its control require the existence of adequate ground drainage. For the purposes of drainage, pedological study was conducted and hydraulic conductivity measured in the selected horizons. Field measurements used standard augerhole method in saturated soil extract, below ground water level, for various depths to 5 m. For layers above ground water level and below it (if it was below drill depth), K- values were calculated based on: soil texture, average conductivity, via infiltration test, average filtration coefficient (100 ccm Kopecki), inverse augerhole method, while K- values for horizons of 0-2.5 and 2.5-3.5 were calculated based on the concept of transmissibility. The map of hydraulic conductivity was produced as the final result of the study, based on measured and estimated-calculated values. K-values (m/day) were classified into percentage categories (from 0.5 to  gt 4.0 m/day). Since soil desalinisation has three phases (initial leaching, reclamation-transitional production of tolerant crops, and regular crop production), it is clear that the drainage systems are projected for the third phase, therefore drainage quantities are defined as those that need to go through the drainage system in a given time in a given period, in order to maintain the rhizosphere salinity at the desired level. Drainage water quantity is the same as added water quantity (leaching requirements) in order to maintain the desired salinity level (4 mmhos/cm), with 25-30% of the gross irrigation requirements. Based on the gross irrigation and drainage requirements, the drainage hydromodule was determined at q = 2 mm/day. Important factors for subsurface-pipe drainage are depth and oscillations of ground water level in the growing period, or the minimum depth, which determines the aeration value and development of plant rhizosphere. The analysis verified that the drainage system designed for permanent requirements in the regular production phase can satisfy temporary drainage requirements at the initial leaching phase. Finally, field drainage depth must be higher than minimum depth of ground water, so that hydraulic head is provided which causes movement of ground water towards the drain. Adopted field drain depth is 2.0-2.5 m. As the final result of the applied methods, and based on hydro-pedological soil properties and their analyses, the modified Hooghoudt-Ernst equation was used to calculate field drain spacing. By using the aforementioned calculation method, the drainage spacing is adopted as follows: 45 m, 60 m, 75 m, 90 m, 105 m, and 120 m, while average drainage depth is 2.3 m.
AB  - U ovom radu prikazana je detaljna analiza parametara za determinaciju osnovnih kriterijma poljske-cevne drenaže, obzirom da desalinizacija (Land Reclamation) i poboljšanje degradiranih zaslanjenih zemljišta i njegova kontrola, zahteva postojanje adekvatne podzemne drenaže. Za potrebe drenaže, urađena su pedološka istraživanja i merenja hidrauličkog konduktiviteta izdvojenih horizonata. Poljska merenja su rađena standardnom Auger-hole metodom u saturisanom zemljišnom ekstraktu, ispod nivoa podzemne vode, za različite dubine do 5 m. Kao finalni rezultat istraživanja, sačinjena je karta hidrauličkog konduktiviteta, kako na osnovu merenih, tako i na osnovu procenjenih-sračunatih vrednosti. Vrednosti K (m/dan), svrstane su u % kategorija (od 0,5 do  gt 4,0 m/dan). Drenažne količine, jednake su dodatnoj količini vode eng. 'leaching requirements', za održavanje željenog nivoa saliniteta (4 mmhos/cm), sa 25-30% od ukupnih irgacionih zahteva. Na osnovu ukupnih, potrebnih količina vode za navodnjavanje i odvodnjavanje, drenažni hidromodul koji treba koristiti za dimenzionisanje sistema je q = 2mm/dan. Bitan činilac podzemne-cevne drenaže je dubina i oscilacije novoa podzemne vode u period vegetacije. Analizom je verifikovano, da drenažni sistem, može zadovoljiti temporarne drenažne zahteve u fazi inicjalnog ispiranja. Dubina poljske drenaže mora biti veća od minimalne dubine podzemne vode, sa ciljem da se obezbedi hidraulički pritisak koji uslovljava kretanje podzemne vode ka drenu. Usvojena dubina poljske drenaže je od 2,0-2,5 m. Kao finale rezultata primenjenih metoda, a na osnovu hidro-pedoloških karakteristika zemljišta i analize istih, za proračun rastojanja poljskih drenova, korišćena je modifikovana Houghout-Ernst jednačina. Koristeći pomentu metodu proračuna, usvojena drenažna rastojanja su: 45m, 60m, 75m, 90m, 105m i 120m, dok je prosečna dubina drenaže 2,3 m.
PB  - Nacionalno naučno društvo za poljoprivrednu tehniku, Novi Sad
T2  - Savremena poljoprivredna tehnika
T1  - Analysis of drainage criteria as a basis for land reclamation of anizotropic soils in arid regions
T1  - Analiza drenažnih kriterijuma kao uslov melioracija višeslojnih zemljišta aridnih regiona
EP  - 16
IS  - 1
SP  - 9
VL  - 41
DO  - 10.5937/SavPoljTeh1501009Z
ER  - 

@article{
author = "Žeželj, Branislav and Sekulić, Petar and Hojka, Zdravko and Ninkov, Jordana",
year = "2015",
abstract = "This study gives a detailed analysis of parameters for determination of basic criteria for field-pipe drainage, since desalinisation (Land Reclamation) and amelioration of degraded saline soils and its control require the existence of adequate ground drainage. For the purposes of drainage, pedological study was conducted and hydraulic conductivity measured in the selected horizons. Field measurements used standard augerhole method in saturated soil extract, below ground water level, for various depths to 5 m. For layers above ground water level and below it (if it was below drill depth), K- values were calculated based on: soil texture, average conductivity, via infiltration test, average filtration coefficient (100 ccm Kopecki), inverse augerhole method, while K- values for horizons of 0-2.5 and 2.5-3.5 were calculated based on the concept of transmissibility. The map of hydraulic conductivity was produced as the final result of the study, based on measured and estimated-calculated values. K-values (m/day) were classified into percentage categories (from 0.5 to  gt 4.0 m/day). Since soil desalinisation has three phases (initial leaching, reclamation-transitional production of tolerant crops, and regular crop production), it is clear that the drainage systems are projected for the third phase, therefore drainage quantities are defined as those that need to go through the drainage system in a given time in a given period, in order to maintain the rhizosphere salinity at the desired level. Drainage water quantity is the same as added water quantity (leaching requirements) in order to maintain the desired salinity level (4 mmhos/cm), with 25-30% of the gross irrigation requirements. Based on the gross irrigation and drainage requirements, the drainage hydromodule was determined at q = 2 mm/day. Important factors for subsurface-pipe drainage are depth and oscillations of ground water level in the growing period, or the minimum depth, which determines the aeration value and development of plant rhizosphere. The analysis verified that the drainage system designed for permanent requirements in the regular production phase can satisfy temporary drainage requirements at the initial leaching phase. Finally, field drainage depth must be higher than minimum depth of ground water, so that hydraulic head is provided which causes movement of ground water towards the drain. Adopted field drain depth is 2.0-2.5 m. As the final result of the applied methods, and based on hydro-pedological soil properties and their analyses, the modified Hooghoudt-Ernst equation was used to calculate field drain spacing. By using the aforementioned calculation method, the drainage spacing is adopted as follows: 45 m, 60 m, 75 m, 90 m, 105 m, and 120 m, while average drainage depth is 2.3 m., U ovom radu prikazana je detaljna analiza parametara za determinaciju osnovnih kriterijma poljske-cevne drenaže, obzirom da desalinizacija (Land Reclamation) i poboljšanje degradiranih zaslanjenih zemljišta i njegova kontrola, zahteva postojanje adekvatne podzemne drenaže. Za potrebe drenaže, urađena su pedološka istraživanja i merenja hidrauličkog konduktiviteta izdvojenih horizonata. Poljska merenja su rađena standardnom Auger-hole metodom u saturisanom zemljišnom ekstraktu, ispod nivoa podzemne vode, za različite dubine do 5 m. Kao finalni rezultat istraživanja, sačinjena je karta hidrauličkog konduktiviteta, kako na osnovu merenih, tako i na osnovu procenjenih-sračunatih vrednosti. Vrednosti K (m/dan), svrstane su u % kategorija (od 0,5 do  gt 4,0 m/dan). Drenažne količine, jednake su dodatnoj količini vode eng. 'leaching requirements', za održavanje željenog nivoa saliniteta (4 mmhos/cm), sa 25-30% od ukupnih irgacionih zahteva. Na osnovu ukupnih, potrebnih količina vode za navodnjavanje i odvodnjavanje, drenažni hidromodul koji treba koristiti za dimenzionisanje sistema je q = 2mm/dan. Bitan činilac podzemne-cevne drenaže je dubina i oscilacije novoa podzemne vode u period vegetacije. Analizom je verifikovano, da drenažni sistem, može zadovoljiti temporarne drenažne zahteve u fazi inicjalnog ispiranja. Dubina poljske drenaže mora biti veća od minimalne dubine podzemne vode, sa ciljem da se obezbedi hidraulički pritisak koji uslovljava kretanje podzemne vode ka drenu. Usvojena dubina poljske drenaže je od 2,0-2,5 m. Kao finale rezultata primenjenih metoda, a na osnovu hidro-pedoloških karakteristika zemljišta i analize istih, za proračun rastojanja poljskih drenova, korišćena je modifikovana Houghout-Ernst jednačina. Koristeći pomentu metodu proračuna, usvojena drenažna rastojanja su: 45m, 60m, 75m, 90m, 105m i 120m, dok je prosečna dubina drenaže 2,3 m.",
publisher = "Nacionalno naučno društvo za poljoprivrednu tehniku, Novi Sad",
journal = "Savremena poljoprivredna tehnika",
title = "Analysis of drainage criteria as a basis for land reclamation of anizotropic soils in arid regions, Analiza drenažnih kriterijuma kao uslov melioracija višeslojnih zemljišta aridnih regiona",
pages = "16-9",
number = "1",
volume = "41",
doi = "10.5937/SavPoljTeh1501009Z"
}

Žeželj, B., Sekulić, P., Hojka, Z.,& Ninkov, J.. (2015). Analysis of drainage criteria as a basis for land reclamation of anizotropic soils in arid regions. in Savremena poljoprivredna tehnika
Nacionalno naučno društvo za poljoprivrednu tehniku, Novi Sad., 41(1), 9-16.
https://doi.org/10.5937/SavPoljTeh1501009Z

Žeželj B, Sekulić P, Hojka Z, Ninkov J. Analysis of drainage criteria as a basis for land reclamation of anizotropic soils in arid regions. in Savremena poljoprivredna tehnika. 2015;41(1):9-16.
doi:10.5937/SavPoljTeh1501009Z .

Žeželj, Branislav, Sekulić, Petar, Hojka, Zdravko, Ninkov, Jordana, "Analysis of drainage criteria as a basis for land reclamation of anizotropic soils in arid regions" in Savremena poljoprivredna tehnika, 41, no. 1 (2015):9-16,
https://doi.org/10.5937/SavPoljTeh1501009Z . .

TY  - BOOK
AU  - Vasin, Jovica
AU  - Ninkov, Jordana
AU  - Milić, Stanko
AU  - Zeremski, Tijana
AU  - Marinković, Jelena
AU  - Sekulić, Petar
AU  - Hansman, Štefan
AU  - Živanov, Milorad
PY  - 2014
UR  - http://fiver.ifvcns.rs/handle/123456789/4535
AB  - Cilj ovog Projekta je da se sačini dokument o globalnoj proceni plodnosti i kvalitetu zemljišta voćnjaka sa iznetim zaključcima i smernicama, koja će poslužiti nadležnim institucijama kao dokumentovana osnova za donošenje preventivnih, korektivnih i stimulativnih mera. Glavni cilj Projekta je i da se potpuno usvoji korišćenje sistema kontrole plodnosti i racionalne upotrebe đubriva od strane krajnjih korisnika rezultata  –  proizvođača kao i nadležnih institucija, putem šire edukacije, promocije i dostupnosti rezultata istraživanja.
PB  - Novi Sad : Institut za ratarstvo i povrtarstvo
T1  - Unapređenje kvaliteta zemljišta pod voćnjacima i rasadnicima (voća i vinove loze) u Republici Srbiji
UR  - https://hdl.handle.net/21.15107/rcub_fiver_4535
ER  - 

@book{
author = "Vasin, Jovica and Ninkov, Jordana and Milić, Stanko and Zeremski, Tijana and Marinković, Jelena and Sekulić, Petar and Hansman, Štefan and Živanov, Milorad",
year = "2014",
abstract = "Cilj ovog Projekta je da se sačini dokument o globalnoj proceni plodnosti i kvalitetu zemljišta voćnjaka sa iznetim zaključcima i smernicama, koja će poslužiti nadležnim institucijama kao dokumentovana osnova za donošenje preventivnih, korektivnih i stimulativnih mera. Glavni cilj Projekta je i da se potpuno usvoji korišćenje sistema kontrole plodnosti i racionalne upotrebe đubriva od strane krajnjih korisnika rezultata  –  proizvođača kao i nadležnih institucija, putem šire edukacije, promocije i dostupnosti rezultata istraživanja.",
publisher = "Novi Sad : Institut za ratarstvo i povrtarstvo",
title = "Unapređenje kvaliteta zemljišta pod voćnjacima i rasadnicima (voća i vinove loze) u Republici Srbiji",
url = "https://hdl.handle.net/21.15107/rcub_fiver_4535"
}

Vasin, J., Ninkov, J., Milić, S., Zeremski, T., Marinković, J., Sekulić, P., Hansman, Š.,& Živanov, M.. (2014). Unapređenje kvaliteta zemljišta pod voćnjacima i rasadnicima (voća i vinove loze) u Republici Srbiji. 
Novi Sad : Institut za ratarstvo i povrtarstvo..
https://hdl.handle.net/21.15107/rcub_fiver_4535

Vasin J, Ninkov J, Milić S, Zeremski T, Marinković J, Sekulić P, Hansman Š, Živanov M. Unapređenje kvaliteta zemljišta pod voćnjacima i rasadnicima (voća i vinove loze) u Republici Srbiji. 2014;.
https://hdl.handle.net/21.15107/rcub_fiver_4535 .

Vasin, Jovica, Ninkov, Jordana, Milić, Stanko, Zeremski, Tijana, Marinković, Jelena, Sekulić, Petar, Hansman, Štefan, Živanov, Milorad, "Unapređenje kvaliteta zemljišta pod voćnjacima i rasadnicima (voća i vinove loze) u Republici Srbiji" (2014),
https://hdl.handle.net/21.15107/rcub_fiver_4535 .

TY  - BOOK
AU  - Ninkov, Jordana
AU  - Vasin, Jovica
AU  - Milić, Stanko
AU  - Marinković, Jelena
AU  - Sekulić, Petar
AU  - Hansman, Štefan
AU  - Živanov, Milorad
AU  - Jakšić, Darko
PY  - 2014
UR  - http://fiver.ifvcns.rs/handle/123456789/3235
AB  - Proizvodnja kvalitetnog grožđa i vina započinje optimalnim korišćenjem zemljišta u skladu sa lokalnim klimatskim uslovima. U savremenoj literaturi, dinamičko međudejstvo abiotičkih i biotičkih faktora u vinogradarstvu (prema nekim autorima i ljudskog faktora), označava se izrazom terroir (francuska reč). Zemljište u vinogradarskoj proizvodnji predstavlja esencijalni deo šireg koncepta terroir koji u jednoj reči sažima sve specifične uticaje različitih tipova zemljišta, nadmorske visine, položaja prema suncu, položaja i nagiba vinograda. Takođe, terroir podrazumeva i temperaturu (ekstreme i proseke), količinu padavina, brzinu i smer vetra, ukupan broj sunčanih sati, učestalost mraza, magle i sl. Vinova loza se gaji na velikim globalnim površinama različitih zemljišta, kroz dugu istoriju. Fizičko-hemijske osobine zemljišta su, u najvećoj meri, određene samim tipom zemljišta. Struktura zemljišta i njegov hemijski sastav određuju kvalitet grožđa i samim tim, posredno i kvalitet vina. Zemljište pruža potporu korenovom sistemu vinove loze i za nju predstavlja glavni izvor vode i nutrijenata. Uticaj kvaliteta zemljišta na karakter i ukus vina je dokazan u velikom broju savremenih studija.
PB  - Novi Sad : Institut za ratarstvo i povrtarstvo
T1  - Karakterizacija zemljišta vinograda za oznaku geografskog porekla vina: pilot projekat “Šumadijski vinogradarski rejon”
UR  - https://hdl.handle.net/21.15107/rcub_fiver_3235
ER  - 

@book{
author = "Ninkov, Jordana and Vasin, Jovica and Milić, Stanko and Marinković, Jelena and Sekulić, Petar and Hansman, Štefan and Živanov, Milorad and Jakšić, Darko",
year = "2014",
abstract = "Proizvodnja kvalitetnog grožđa i vina započinje optimalnim korišćenjem zemljišta u skladu sa lokalnim klimatskim uslovima. U savremenoj literaturi, dinamičko međudejstvo abiotičkih i biotičkih faktora u vinogradarstvu (prema nekim autorima i ljudskog faktora), označava se izrazom terroir (francuska reč). Zemljište u vinogradarskoj proizvodnji predstavlja esencijalni deo šireg koncepta terroir koji u jednoj reči sažima sve specifične uticaje različitih tipova zemljišta, nadmorske visine, položaja prema suncu, položaja i nagiba vinograda. Takođe, terroir podrazumeva i temperaturu (ekstreme i proseke), količinu padavina, brzinu i smer vetra, ukupan broj sunčanih sati, učestalost mraza, magle i sl. Vinova loza se gaji na velikim globalnim površinama različitih zemljišta, kroz dugu istoriju. Fizičko-hemijske osobine zemljišta su, u najvećoj meri, određene samim tipom zemljišta. Struktura zemljišta i njegov hemijski sastav određuju kvalitet grožđa i samim tim, posredno i kvalitet vina. Zemljište pruža potporu korenovom sistemu vinove loze i za nju predstavlja glavni izvor vode i nutrijenata. Uticaj kvaliteta zemljišta na karakter i ukus vina je dokazan u velikom broju savremenih studija.",
publisher = "Novi Sad : Institut za ratarstvo i povrtarstvo",
title = "Karakterizacija zemljišta vinograda za oznaku geografskog porekla vina: pilot projekat “Šumadijski vinogradarski rejon”",
url = "https://hdl.handle.net/21.15107/rcub_fiver_3235"
}

Ninkov, J., Vasin, J., Milić, S., Marinković, J., Sekulić, P., Hansman, Š., Živanov, M.,& Jakšić, D.. (2014). Karakterizacija zemljišta vinograda za oznaku geografskog porekla vina: pilot projekat “Šumadijski vinogradarski rejon”. 
Novi Sad : Institut za ratarstvo i povrtarstvo..
https://hdl.handle.net/21.15107/rcub_fiver_3235

Ninkov J, Vasin J, Milić S, Marinković J, Sekulić P, Hansman Š, Živanov M, Jakšić D. Karakterizacija zemljišta vinograda za oznaku geografskog porekla vina: pilot projekat “Šumadijski vinogradarski rejon”. 2014;.
https://hdl.handle.net/21.15107/rcub_fiver_3235 .

Ninkov, Jordana, Vasin, Jovica, Milić, Stanko, Marinković, Jelena, Sekulić, Petar, Hansman, Štefan, Živanov, Milorad, Jakšić, Darko, "Karakterizacija zemljišta vinograda za oznaku geografskog porekla vina: pilot projekat “Šumadijski vinogradarski rejon”" (2014),
https://hdl.handle.net/21.15107/rcub_fiver_3235 .

TY  - CONF
AU  - Šeremešić, Srđan
AU  - Marinković, Jelena
AU  - Tintor, Branislava
AU  - Milošev, Dragiša
AU  - Sekulić, Petar
AU  - Đurđević, Boris
AU  - Jug, Irena
PY  - 2014
UR  - http://fiver.ifvcns.rs/handle/123456789/2766
AB  - The purpose of this study was to explain relationship of labile soil organic carbon and microbiological properties of chernozem soil. Soil samples from plow layer of different winter wheat
based cropping systems and native sod were analysed. Higher content of labile soil organic
carbon was found on the native sod compared with the agricultural experimental plots. Regading microbiological activity chernozem has showed respectable values as long-term intensive agricultural utilization was conducted. Hot water extractable carbon was found to be
correlated with the total number of the microorganisams, DHA, oligonitrophilic bacteria and
actinomycetes, but not with the fungi.
AB  - Cilj ovoga rada je da se objasni odnos između labilnog organskog ugljika tla i mikrobioloških
svojstava na černozemu. Analizirani su uzorci tla uzorkovani iz oraničnog sloja različitih sustava
obrade kod ozime pšenice i nativnog poljskog pokrivača. Veći sadržaj labilnog organskog ugljika utvrđen je kod nativnog poljskog pokrivača uspoređujući ga sa poljoprivrednim eksperimetalnim površinama. Također, černozem je imao usporenu mikrobiološku aktivnost dok god se
vršila intenzivna dugoročna poljoprivredna proizvodnja. Ugljik analiziran ekstrakcijom toplom
vodom bio je u korelaciji sa ukupnim brojem mikroorganizama, DHA oligotrofnim bakterijama
i aktinomicetama, ali ne i gljivama.
PB  - Osijek : Glas Slavonije
C3  - Proceedings & Abstracts, 7th International Scientific/Professional Conference "Agricultural in Nature and Environment Protection, 28-30 May 2014, Vukovar
T1  - Labile soil organic carbon relationship with the microbial soil properties
T1  - Odnos između labilnog organskog ugljika i mikrobioloških svojstava tla
EP  - 252
SP  - 247
UR  - https://hdl.handle.net/21.15107/rcub_fiver_2766
ER  - 

@conference{
author = "Šeremešić, Srđan and Marinković, Jelena and Tintor, Branislava and Milošev, Dragiša and Sekulić, Petar and Đurđević, Boris and Jug, Irena",
year = "2014",
abstract = "The purpose of this study was to explain relationship of labile soil organic carbon and microbiological properties of chernozem soil. Soil samples from plow layer of different winter wheat
based cropping systems and native sod were analysed. Higher content of labile soil organic
carbon was found on the native sod compared with the agricultural experimental plots. Regading microbiological activity chernozem has showed respectable values as long-term intensive agricultural utilization was conducted. Hot water extractable carbon was found to be
correlated with the total number of the microorganisams, DHA, oligonitrophilic bacteria and
actinomycetes, but not with the fungi., Cilj ovoga rada je da se objasni odnos između labilnog organskog ugljika tla i mikrobioloških
svojstava na černozemu. Analizirani su uzorci tla uzorkovani iz oraničnog sloja različitih sustava
obrade kod ozime pšenice i nativnog poljskog pokrivača. Veći sadržaj labilnog organskog ugljika utvrđen je kod nativnog poljskog pokrivača uspoređujući ga sa poljoprivrednim eksperimetalnim površinama. Također, černozem je imao usporenu mikrobiološku aktivnost dok god se
vršila intenzivna dugoročna poljoprivredna proizvodnja. Ugljik analiziran ekstrakcijom toplom
vodom bio je u korelaciji sa ukupnim brojem mikroorganizama, DHA oligotrofnim bakterijama
i aktinomicetama, ali ne i gljivama.",
publisher = "Osijek : Glas Slavonije",
journal = "Proceedings & Abstracts, 7th International Scientific/Professional Conference "Agricultural in Nature and Environment Protection, 28-30 May 2014, Vukovar",
title = "Labile soil organic carbon relationship with the microbial soil properties, Odnos između labilnog organskog ugljika i mikrobioloških svojstava tla",
pages = "252-247",
url = "https://hdl.handle.net/21.15107/rcub_fiver_2766"
}

Šeremešić, S., Marinković, J., Tintor, B., Milošev, D., Sekulić, P., Đurđević, B.,& Jug, I.. (2014). Labile soil organic carbon relationship with the microbial soil properties. in Proceedings & Abstracts, 7th International Scientific/Professional Conference "Agricultural in Nature and Environment Protection, 28-30 May 2014, Vukovar
Osijek : Glas Slavonije., 247-252.
https://hdl.handle.net/21.15107/rcub_fiver_2766

Šeremešić S, Marinković J, Tintor B, Milošev D, Sekulić P, Đurđević B, Jug I. Labile soil organic carbon relationship with the microbial soil properties. in Proceedings & Abstracts, 7th International Scientific/Professional Conference "Agricultural in Nature and Environment Protection, 28-30 May 2014, Vukovar. 2014;:247-252.
https://hdl.handle.net/21.15107/rcub_fiver_2766 .

Šeremešić, Srđan, Marinković, Jelena, Tintor, Branislava, Milošev, Dragiša, Sekulić, Petar, Đurđević, Boris, Jug, Irena, "Labile soil organic carbon relationship with the microbial soil properties" in Proceedings & Abstracts, 7th International Scientific/Professional Conference "Agricultural in Nature and Environment Protection, 28-30 May 2014, Vukovar (2014):247-252,
https://hdl.handle.net/21.15107/rcub_fiver_2766 .

TY  - JOUR
AU  - Ninkov, Jordana
AU  - Vasin, Jovica
AU  - Milić, Stanko
AU  - Sekulić, Petar
AU  - Zeremski, Tijana
AU  - Milenković, Slobodan
PY  - 2014
UR  - http://fiver.ifvcns.rs/handle/123456789/1390
AB  - This research studied the copper content of vineyard soils as affected by the long-term use of copper-based fungicides. The soil samples were taken from individual vineyards located in the central region of Serbia, from two depths: 0-30 and 30-60 cm. At the same time, at each site, control samples were collected from a nearby forest in order to determine the background concentrations. The pseudototal (CuT) and available (CuEDTA) copper content were analysed in 60 soil samples in total, 46 of which represented vineyard soils and 14 control samples. The maximum value of copper was 200.1 mg/kg of pseudototal and 82.1 mg/kg of available copper. Comparison of the copper content in vineyards to the background concentrations of control samples clearly confirmed anthropogenic influence. Out of 46 vineyard soil samples, about one half (22 of them) had the CuT concentration above the critical level of 60 mg/kg. Eleven samples had the pseudototal content over the MAC of 100 mg/kg. Anthropogenic influence was also confirmed on the basis of copper bioavailability and copper distribution along the soil profile. Available content of over 50 mg/kg was found in 8 out of 46 analysed samples of vineyard soils. According to the percentage contribution of available CuEDTA to pseudototalCuT, half of the samples were above 36%, which is potentially phytotoxic. The concentration of copper was the highest in the surface layer in the vineyard soil samples. A check of the background Cu levels has shown that the distribution of CuT and CuEDTA is uniform throughout the soil profile. Data from some of the analysed plots indicate that the process of erosion is under way at the site. The soil on lower-lying terrain has been found to be more exposed to copper pollution than the soil of higher terrain. Since copper at the surveyed sites is very persistent and accumulates in a short period of time, focus should be placed on the preventive measures of reducing the use of copper-based fungicides to an optimal level.
PB  - Federation of Eurasian Soil Science Societies
T2  - EurasianJournalof Soil Science
T1  - Copper content and distribution in vineyard soils of central Serbia
EP  - 137
IS  - 2
SP  - 131
VL  - 3
UR  - https://hdl.handle.net/21.15107/rcub_fiver_1390
ER  - 

@article{
author = "Ninkov, Jordana and Vasin, Jovica and Milić, Stanko and Sekulić, Petar and Zeremski, Tijana and Milenković, Slobodan",
year = "2014",
abstract = "This research studied the copper content of vineyard soils as affected by the long-term use of copper-based fungicides. The soil samples were taken from individual vineyards located in the central region of Serbia, from two depths: 0-30 and 30-60 cm. At the same time, at each site, control samples were collected from a nearby forest in order to determine the background concentrations. The pseudototal (CuT) and available (CuEDTA) copper content were analysed in 60 soil samples in total, 46 of which represented vineyard soils and 14 control samples. The maximum value of copper was 200.1 mg/kg of pseudototal and 82.1 mg/kg of available copper. Comparison of the copper content in vineyards to the background concentrations of control samples clearly confirmed anthropogenic influence. Out of 46 vineyard soil samples, about one half (22 of them) had the CuT concentration above the critical level of 60 mg/kg. Eleven samples had the pseudototal content over the MAC of 100 mg/kg. Anthropogenic influence was also confirmed on the basis of copper bioavailability and copper distribution along the soil profile. Available content of over 50 mg/kg was found in 8 out of 46 analysed samples of vineyard soils. According to the percentage contribution of available CuEDTA to pseudototalCuT, half of the samples were above 36%, which is potentially phytotoxic. The concentration of copper was the highest in the surface layer in the vineyard soil samples. A check of the background Cu levels has shown that the distribution of CuT and CuEDTA is uniform throughout the soil profile. Data from some of the analysed plots indicate that the process of erosion is under way at the site. The soil on lower-lying terrain has been found to be more exposed to copper pollution than the soil of higher terrain. Since copper at the surveyed sites is very persistent and accumulates in a short period of time, focus should be placed on the preventive measures of reducing the use of copper-based fungicides to an optimal level.",
publisher = "Federation of Eurasian Soil Science Societies",
journal = "EurasianJournalof Soil Science",
title = "Copper content and distribution in vineyard soils of central Serbia",
pages = "137-131",
number = "2",
volume = "3",
url = "https://hdl.handle.net/21.15107/rcub_fiver_1390"
}

Ninkov, J., Vasin, J., Milić, S., Sekulić, P., Zeremski, T.,& Milenković, S.. (2014). Copper content and distribution in vineyard soils of central Serbia. in EurasianJournalof Soil Science
Federation of Eurasian Soil Science Societies., 3(2), 131-137.
https://hdl.handle.net/21.15107/rcub_fiver_1390

Ninkov J, Vasin J, Milić S, Sekulić P, Zeremski T, Milenković S. Copper content and distribution in vineyard soils of central Serbia. in EurasianJournalof Soil Science. 2014;3(2):131-137.
https://hdl.handle.net/21.15107/rcub_fiver_1390 .

Ninkov, Jordana, Vasin, Jovica, Milić, Stanko, Sekulić, Petar, Zeremski, Tijana, Milenković, Slobodan, "Copper content and distribution in vineyard soils of central Serbia" in EurasianJournalof Soil Science, 3, no. 2 (2014):131-137,
https://hdl.handle.net/21.15107/rcub_fiver_1390 .

TY  - CONF
AU  - Grahovac, Nada
AU  - Suturović, Z.
AU  - Kondić-Špika, Ankica
AU  - Sekulić, Petar
AU  - Lazić, Sanja
AU  - Šunjka, Dragana
AU  - Jakšić, Snežana
PY  - 2013
UR  - http://fiver.ifvcns.rs/handle/123456789/3305
AB  - Pesticides having different structures and biological activities are widely used for
agricultural and non-agricultural purposes. Due to their widespread use, pesticides neeq
to be determined in various environmental matrices, A wide range of analytical
techniques have been developed in order to identify the organic contaminants often
present at trace levels in environmental samples. The aim of this work was to develop a
reliable, rapid, robust and cost-effective method for the determination of five sulfonylurea
herbicides (nicosulfuron, oxasulfuron, tribenuron methyl, triasulfuron and tritosulfuron) +
spiked river water samples. The samples were diluted with 0 5% acetic acid (1:1) an
purified by solid-phase extraction (SPE) on Oasis MAX cartridges. After the cartridges
were sequentially washed with water, methanol, ethyl acetate, and acetonitrile, they were
eluted with 0.1% formic acid in acetonitrile. Elutes were evaporated to dryness and
reconstituted in acetonitrile. The purified extracts were analyzed by reversed-phase highperformance liquid chromatography with diode-array detection (HPLC-DAD) system. The
best separation was achieved on a Zorbax Eclipse XDB-Cis (50mm x 4.6mm x 1.8m)
analytical column with gradient elution at a flow rate of 1 mL/min. The analyte was
monitored at 230 nm. The linearity of calibration curve within the tested concentration
range exhibited correlation coefficients (r) higher than 0.998. The accuracy of the
method was acceptable since the average recoveries measured at two fortification levels
were in the range of 92.5-97.5% (n=3). The precision of the developed procedure
expressed as the relative standard deviations (RSDs) were lower than 4.76% in all cases
The repeatability of the retention time and peak area was checked by injecting standard
solution ten times. The relative standard deviation of the retention time and the peak area
was found to be less than 0.2% and 0 6%, respectively. The method was also validated
by analyzing freshly spiked river water samples The proposed analytical method might
be successfully applied in monitoring of sulfonylurea herbicides (nicosulfuron,
oxasulfuron, tribenuron methyl, triasulfuron and tritosulfuron) in surface water and
groundwater samples
PB  - Athens : University of the Aegean
C3  - Proceedings, 13th International Conference on Environmental Science and Technology (CEST2013), 5-7 September 2013, Athens
T1  - Analytical method validation for the determination of sulfonylurea herbicides in water samples by solid-phase extraction and HPLC with diode-array detection.
EP  - 8
SP  - 1
UR  - https://hdl.handle.net/21.15107/rcub_fiver_3305
ER  - 

@conference{
author = "Grahovac, Nada and Suturović, Z. and Kondić-Špika, Ankica and Sekulić, Petar and Lazić, Sanja and Šunjka, Dragana and Jakšić, Snežana",
year = "2013",
abstract = "Pesticides having different structures and biological activities are widely used for
agricultural and non-agricultural purposes. Due to their widespread use, pesticides neeq
to be determined in various environmental matrices, A wide range of analytical
techniques have been developed in order to identify the organic contaminants often
present at trace levels in environmental samples. The aim of this work was to develop a
reliable, rapid, robust and cost-effective method for the determination of five sulfonylurea
herbicides (nicosulfuron, oxasulfuron, tribenuron methyl, triasulfuron and tritosulfuron) +
spiked river water samples. The samples were diluted with 0 5% acetic acid (1:1) an
purified by solid-phase extraction (SPE) on Oasis MAX cartridges. After the cartridges
were sequentially washed with water, methanol, ethyl acetate, and acetonitrile, they were
eluted with 0.1% formic acid in acetonitrile. Elutes were evaporated to dryness and
reconstituted in acetonitrile. The purified extracts were analyzed by reversed-phase highperformance liquid chromatography with diode-array detection (HPLC-DAD) system. The
best separation was achieved on a Zorbax Eclipse XDB-Cis (50mm x 4.6mm x 1.8m)
analytical column with gradient elution at a flow rate of 1 mL/min. The analyte was
monitored at 230 nm. The linearity of calibration curve within the tested concentration
range exhibited correlation coefficients (r) higher than 0.998. The accuracy of the
method was acceptable since the average recoveries measured at two fortification levels
were in the range of 92.5-97.5% (n=3). The precision of the developed procedure
expressed as the relative standard deviations (RSDs) were lower than 4.76% in all cases
The repeatability of the retention time and peak area was checked by injecting standard
solution ten times. The relative standard deviation of the retention time and the peak area
was found to be less than 0.2% and 0 6%, respectively. The method was also validated
by analyzing freshly spiked river water samples The proposed analytical method might
be successfully applied in monitoring of sulfonylurea herbicides (nicosulfuron,
oxasulfuron, tribenuron methyl, triasulfuron and tritosulfuron) in surface water and
groundwater samples",
publisher = "Athens : University of the Aegean",
journal = "Proceedings, 13th International Conference on Environmental Science and Technology (CEST2013), 5-7 September 2013, Athens",
title = "Analytical method validation for the determination of sulfonylurea herbicides in water samples by solid-phase extraction and HPLC with diode-array detection.",
pages = "8-1",
url = "https://hdl.handle.net/21.15107/rcub_fiver_3305"
}

Grahovac, N., Suturović, Z., Kondić-Špika, A., Sekulić, P., Lazić, S., Šunjka, D.,& Jakšić, S.. (2013). Analytical method validation for the determination of sulfonylurea herbicides in water samples by solid-phase extraction and HPLC with diode-array detection.. in Proceedings, 13th International Conference on Environmental Science and Technology (CEST2013), 5-7 September 2013, Athens
Athens : University of the Aegean., 1-8.
https://hdl.handle.net/21.15107/rcub_fiver_3305

Grahovac N, Suturović Z, Kondić-Špika A, Sekulić P, Lazić S, Šunjka D, Jakšić S. Analytical method validation for the determination of sulfonylurea herbicides in water samples by solid-phase extraction and HPLC with diode-array detection.. in Proceedings, 13th International Conference on Environmental Science and Technology (CEST2013), 5-7 September 2013, Athens. 2013;:1-8.
https://hdl.handle.net/21.15107/rcub_fiver_3305 .

Grahovac, Nada, Suturović, Z., Kondić-Špika, Ankica, Sekulić, Petar, Lazić, Sanja, Šunjka, Dragana, Jakšić, Snežana, "Analytical method validation for the determination of sulfonylurea herbicides in water samples by solid-phase extraction and HPLC with diode-array detection." in Proceedings, 13th International Conference on Environmental Science and Technology (CEST2013), 5-7 September 2013, Athens (2013):1-8,
https://hdl.handle.net/21.15107/rcub_fiver_3305 .

TY  - CONF
AU  - Ninkov, Jordana
AU  - Milić, Stanko
AU  - Sekulić, Petar
AU  - Vasin, Jovica
AU  - Zeremski, Tijana
PY  - 2013
UR  - http://fiver.ifvcns.rs/handle/123456789/1283
AB  - This paper deals with the effect of soil particle size on copper availability. Soils from vineyards were observed for soil contamination with copper resulting from the application of copper-based fungicides. Soil samples were taken in 14 locations on the territory of the Vojvodina Province, R. Serbia (50 soil samples at two depths 0-30 and 30-60 cm). The samples were analyzed for pseudototal copper (CuT), available copper (CuEDTA) and particle size distribution. Correlations between soil particle size and the indicator of copper availability CuEDTA/T were calculated and analyzed. The obtained results indicated that the increase in the portion of smallest soil separates, clay and silt, tended to reduce copper availability, whereas the larger separates tended to increase it. The results confirmed that, when assessing the extent of soil contamination with copper, soil mechanical composition should be taken into account as an important factor of copper availability.
C3  - International Multidisciplinary Scientific GeoConference Surveying Geology & Mining Ecology Manage
T1  - Influence of soil particle size on copper availability in vineyard soils
EP  - 568
SP  - 563
DO  - 10.5593/SGEM2013/BC3/S13.011
ER  - 

@conference{
author = "Ninkov, Jordana and Milić, Stanko and Sekulić, Petar and Vasin, Jovica and Zeremski, Tijana",
year = "2013",
abstract = "This paper deals with the effect of soil particle size on copper availability. Soils from vineyards were observed for soil contamination with copper resulting from the application of copper-based fungicides. Soil samples were taken in 14 locations on the territory of the Vojvodina Province, R. Serbia (50 soil samples at two depths 0-30 and 30-60 cm). The samples were analyzed for pseudototal copper (CuT), available copper (CuEDTA) and particle size distribution. Correlations between soil particle size and the indicator of copper availability CuEDTA/T were calculated and analyzed. The obtained results indicated that the increase in the portion of smallest soil separates, clay and silt, tended to reduce copper availability, whereas the larger separates tended to increase it. The results confirmed that, when assessing the extent of soil contamination with copper, soil mechanical composition should be taken into account as an important factor of copper availability.",
journal = "International Multidisciplinary Scientific GeoConference Surveying Geology & Mining Ecology Manage",
title = "Influence of soil particle size on copper availability in vineyard soils",
pages = "568-563",
doi = "10.5593/SGEM2013/BC3/S13.011"
}

Ninkov, J., Milić, S., Sekulić, P., Vasin, J.,& Zeremski, T.. (2013). Influence of soil particle size on copper availability in vineyard soils. in International Multidisciplinary Scientific GeoConference Surveying Geology & Mining Ecology Manage, 563-568.
https://doi.org/10.5593/SGEM2013/BC3/S13.011

Ninkov J, Milić S, Sekulić P, Vasin J, Zeremski T. Influence of soil particle size on copper availability in vineyard soils. in International Multidisciplinary Scientific GeoConference Surveying Geology & Mining Ecology Manage. 2013;:563-568.
doi:10.5593/SGEM2013/BC3/S13.011 .

Ninkov, Jordana, Milić, Stanko, Sekulić, Petar, Vasin, Jovica, Zeremski, Tijana, "Influence of soil particle size on copper availability in vineyard soils" in International Multidisciplinary Scientific GeoConference Surveying Geology & Mining Ecology Manage (2013):563-568,
https://doi.org/10.5593/SGEM2013/BC3/S13.011 . .

TY  - JOUR
AU  - Šeremešić, Srđan
AU  - Milošev, Dragiša
AU  - Sekulić, Petar
AU  - Nešić, Ljiljana
AU  - Ćirić, Vladimir
PY  - 2013
UR  - http://fiver.ifvcns.rs/handle/123456789/1291
AB  - A study was conducted to determine the hot water extractable organic carbon (HWOC) in 9 arable and 3 non arable soil samples on Haplic Chernozem. The hot water extractable carbon represents assimilative component of the total organic matter (OM) that could contain readily available nutrients for plant growth. The obtained fraction of organic carbon (C) makes up only a small percentage of the soil OM and directly reflects the changes in the rhizosphere. This labile fraction of the organic matter was separated by hot water extraction at 80°C. In our study the HWOC content in different samples ranged from 125 mg g-1 to 226 mg g-1. On the plots that are under native vegetation, higher values were determined (316 mg g-1 to 388 mg g-1). Whereas samples from arable soils were lower in HWOC. It was found that this extraction method can be successfully used to explain the dynamics of the soil OM. Soil samples with lower content of the total OM had lower HWOC content, indicating that the preservation of the OM depends on the renewal of its labile fractions.
T2  - Journal of Central European Agriculture
T1  - Total and hot-water extractable carbon relationship in Chernozem soil under different cropping systems and land use
T1  - Odnos ukupne organske materije i ugljenika rastvorljivog u toploj vodi u černozemu na različitim sistemima ratarenja i korišćenja zemljišta
EP  - 1487
IS  - 4
SP  - 1479
VL  - 14
DO  - 10.5513/JCEA01/14.4.1382
ER  - 

@article{
author = "Šeremešić, Srđan and Milošev, Dragiša and Sekulić, Petar and Nešić, Ljiljana and Ćirić, Vladimir",
year = "2013",
abstract = "A study was conducted to determine the hot water extractable organic carbon (HWOC) in 9 arable and 3 non arable soil samples on Haplic Chernozem. The hot water extractable carbon represents assimilative component of the total organic matter (OM) that could contain readily available nutrients for plant growth. The obtained fraction of organic carbon (C) makes up only a small percentage of the soil OM and directly reflects the changes in the rhizosphere. This labile fraction of the organic matter was separated by hot water extraction at 80°C. In our study the HWOC content in different samples ranged from 125 mg g-1 to 226 mg g-1. On the plots that are under native vegetation, higher values were determined (316 mg g-1 to 388 mg g-1). Whereas samples from arable soils were lower in HWOC. It was found that this extraction method can be successfully used to explain the dynamics of the soil OM. Soil samples with lower content of the total OM had lower HWOC content, indicating that the preservation of the OM depends on the renewal of its labile fractions.",
journal = "Journal of Central European Agriculture",
title = "Total and hot-water extractable carbon relationship in Chernozem soil under different cropping systems and land use, Odnos ukupne organske materije i ugljenika rastvorljivog u toploj vodi u černozemu na različitim sistemima ratarenja i korišćenja zemljišta",
pages = "1487-1479",
number = "4",
volume = "14",
doi = "10.5513/JCEA01/14.4.1382"
}

Šeremešić, S., Milošev, D., Sekulić, P., Nešić, L.,& Ćirić, V.. (2013). Total and hot-water extractable carbon relationship in Chernozem soil under different cropping systems and land use. in Journal of Central European Agriculture, 14(4), 1479-1487.
https://doi.org/10.5513/JCEA01/14.4.1382

Šeremešić S, Milošev D, Sekulić P, Nešić L, Ćirić V. Total and hot-water extractable carbon relationship in Chernozem soil under different cropping systems and land use. in Journal of Central European Agriculture. 2013;14(4):1479-1487.
doi:10.5513/JCEA01/14.4.1382 .

Šeremešić, Srđan, Milošev, Dragiša, Sekulić, Petar, Nešić, Ljiljana, Ćirić, Vladimir, "Total and hot-water extractable carbon relationship in Chernozem soil under different cropping systems and land use" in Journal of Central European Agriculture, 14, no. 4 (2013):1479-1487,
https://doi.org/10.5513/JCEA01/14.4.1382 . .

TY  - BOOK
AU  - Ninkov, Jordana
AU  - Vasin, Jovica
AU  - Milić, Stanko
AU  - Sekulić, Petar
AU  - Zeremski, Tijana
AU  - Marinković, Jelena
PY  - 2012
UR  - http://fiver.ifvcns.rs/handle/123456789/3234
AB  - Od kvaliteta zemljišta u velikoj meri zavise i karakter i ukus vina. Kvalitet zemljišta podrazumeva sklop više njegovih osobina: mehanički sastav, vodno-vazdušni režim, plodnost zemljišta ... Zemljište je, prema definiciji, rastresiti površinski sloj litosfere nastalo zajedničkim delovanjem pedogenetskih faktora, sastavljeno od čvrste, tečne i gasovite faze, različito od podloge na kojoj je nastalo po morfološkim, fizičkim, hemijskim i biološkim osobinama. Zemljište u vinogradarskoj proizvodnji predstavlja deo šireg pojma terroir (poreklo reči iz francuskog jezika) koji u jednoj reči sažima sve uticaje različitih tipova zemljišta, nadmorske visine, položaja prema suncu i položaja i nagiba vinograda. Takođe, terroir podrazumeva i temperaturu (ekstreme i proseke), količinu padavina, brzinu i smer vetra, ukupan broj sunčanih sati, učestalost mraza, magle i sl. Vinova loza se gaji na različitim tipovima zemljišta, od tipa zemljišta u najvećoj meri zavise i njegove fizičko-hemijske osobine. Kao najvažnija karakteristika zemljišta vinograda izdvaja se dobra unutrašnja drenaža, odgovarajuća dubina soluma (pedogenetskih horizonata iznad matičnog supstrata) i plodnost.
PB  - Novi Sad : Institut za ratarstvo i povrtarstvo
T1  - Očuvanje i unapređenje zemljišta pod vinogradima Republike Srbije
UR  - https://hdl.handle.net/21.15107/rcub_fiver_3234
ER  - 

@book{
author = "Ninkov, Jordana and Vasin, Jovica and Milić, Stanko and Sekulić, Petar and Zeremski, Tijana and Marinković, Jelena",
year = "2012",
abstract = "Od kvaliteta zemljišta u velikoj meri zavise i karakter i ukus vina. Kvalitet zemljišta podrazumeva sklop više njegovih osobina: mehanički sastav, vodno-vazdušni režim, plodnost zemljišta ... Zemljište je, prema definiciji, rastresiti površinski sloj litosfere nastalo zajedničkim delovanjem pedogenetskih faktora, sastavljeno od čvrste, tečne i gasovite faze, različito od podloge na kojoj je nastalo po morfološkim, fizičkim, hemijskim i biološkim osobinama. Zemljište u vinogradarskoj proizvodnji predstavlja deo šireg pojma terroir (poreklo reči iz francuskog jezika) koji u jednoj reči sažima sve uticaje različitih tipova zemljišta, nadmorske visine, položaja prema suncu i položaja i nagiba vinograda. Takođe, terroir podrazumeva i temperaturu (ekstreme i proseke), količinu padavina, brzinu i smer vetra, ukupan broj sunčanih sati, učestalost mraza, magle i sl. Vinova loza se gaji na različitim tipovima zemljišta, od tipa zemljišta u najvećoj meri zavise i njegove fizičko-hemijske osobine. Kao najvažnija karakteristika zemljišta vinograda izdvaja se dobra unutrašnja drenaža, odgovarajuća dubina soluma (pedogenetskih horizonata iznad matičnog supstrata) i plodnost.",
publisher = "Novi Sad : Institut za ratarstvo i povrtarstvo",
title = "Očuvanje i unapređenje zemljišta pod vinogradima Republike Srbije",
url = "https://hdl.handle.net/21.15107/rcub_fiver_3234"
}

Ninkov, J., Vasin, J., Milić, S., Sekulić, P., Zeremski, T.,& Marinković, J.. (2012). Očuvanje i unapređenje zemljišta pod vinogradima Republike Srbije. 
Novi Sad : Institut za ratarstvo i povrtarstvo..
https://hdl.handle.net/21.15107/rcub_fiver_3234

Ninkov J, Vasin J, Milić S, Sekulić P, Zeremski T, Marinković J. Očuvanje i unapređenje zemljišta pod vinogradima Republike Srbije. 2012;.
https://hdl.handle.net/21.15107/rcub_fiver_3234 .

Ninkov, Jordana, Vasin, Jovica, Milić, Stanko, Sekulić, Petar, Zeremski, Tijana, Marinković, Jelena, "Očuvanje i unapređenje zemljišta pod vinogradima Republike Srbije" (2012),
https://hdl.handle.net/21.15107/rcub_fiver_3234 .

TY  - CONF
AU  - Grahovac, Nada
AU  - Suturović, Z.
AU  - Sekulić, Petar
AU  - Stojanović, Z.
AU  - Šunjka, Dragana
AU  - Jakšić, Snežana
PY  - 2012
UR  - http://fiver.ifvcns.rs/handle/123456789/3336
AB  - Sulfonylurea herbicides are new class of herbicides that function by inhibiting the action of acetolactate synthase or acetohydroxyacid synthase, key enzymes in the biosynthesis of amino acids in plants. These herbicide class are applied at rates that are typically much lower than those used for the triazine or acetanilide herbicides that are most commonly used in agriculture.
Despite the beneficial impact of sulfonylurea herbicides on agricultural productivity, concern has been raised by the public and regulatory authorities regarding the potential for their adverse impact on soil and environmental quality and the productivity of sensitive crop in the following season. The presence of sulfonylurea pesticide residues in soils and the low dosage used requires the application of highly sensitive analytical techniques to detect trace
concentrations of residues in soil.
The method has been developed for confirmation and quantitation of three sulfonylurea herbicides including oxasulfuron, triasulfuron and prosulfuron in soil samples by high performance liquid chromatography (HPLC) with
photodiodes detection and chromatograms were extracted at 230 nm. Reverse phase liquid chromatography was used for the separation, identification and quantification of these compounds. Analytes were extracted from the soil samples with methanol-phosphate buffer (2:8, v/v) (pH 8) in an ultrasonic bath. The extracts were adjusted to pH 6.5 with 0.5% CH3COOH and passed, under vacuum, through a solid-phase extraction cartridge. The procedure involves a preconcentration step based on solid-phase extraction with silica-based bonded C18 cartridge and a N-vinyl-pyrrolidone polymer cartridge (Oasis HLB). The best results were obtained with Oasis HLB using 0.1% CH3COOH in acetonitrile as elution solvent. Spiked soil at 0.01-1.0 mg/kg levels was checked, Average recoveries of analytes from soil samples was in the range of 85-109% with a relative standard deviation of <4.2%. The limit of detection (LOD) of this method was in the range of 0.4 to 3.5 yg/kg. The proposed method is fast, easy to perform and could be utilized for monitoring of of three sulfonylurea herbicides including oxasulfuron, triasulfuron and prosulfuron residues in soil samples.
PB  - Beograd : Društvo za zaštitu bilja Srbije
C3  - Book of Abstracts, Annual MGPR Meeting 2012 and International Conference on Food and Health Safety: Moving Towards a Sustainable Agriculture, 11-12 October 2012, Belgrade
T1  - Trace analysis of sulfonylurea herbicides in soil samples using solid phase extraction and liquid chromatography with photodiodes detection
EP  - 79
SP  - 78
UR  - https://hdl.handle.net/21.15107/rcub_fiver_3336
ER  - 

@conference{
author = "Grahovac, Nada and Suturović, Z. and Sekulić, Petar and Stojanović, Z. and Šunjka, Dragana and Jakšić, Snežana",
year = "2012",
abstract = "Sulfonylurea herbicides are new class of herbicides that function by inhibiting the action of acetolactate synthase or acetohydroxyacid synthase, key enzymes in the biosynthesis of amino acids in plants. These herbicide class are applied at rates that are typically much lower than those used for the triazine or acetanilide herbicides that are most commonly used in agriculture.
Despite the beneficial impact of sulfonylurea herbicides on agricultural productivity, concern has been raised by the public and regulatory authorities regarding the potential for their adverse impact on soil and environmental quality and the productivity of sensitive crop in the following season. The presence of sulfonylurea pesticide residues in soils and the low dosage used requires the application of highly sensitive analytical techniques to detect trace
concentrations of residues in soil.
The method has been developed for confirmation and quantitation of three sulfonylurea herbicides including oxasulfuron, triasulfuron and prosulfuron in soil samples by high performance liquid chromatography (HPLC) with
photodiodes detection and chromatograms were extracted at 230 nm. Reverse phase liquid chromatography was used for the separation, identification and quantification of these compounds. Analytes were extracted from the soil samples with methanol-phosphate buffer (2:8, v/v) (pH 8) in an ultrasonic bath. The extracts were adjusted to pH 6.5 with 0.5% CH3COOH and passed, under vacuum, through a solid-phase extraction cartridge. The procedure involves a preconcentration step based on solid-phase extraction with silica-based bonded C18 cartridge and a N-vinyl-pyrrolidone polymer cartridge (Oasis HLB). The best results were obtained with Oasis HLB using 0.1% CH3COOH in acetonitrile as elution solvent. Spiked soil at 0.01-1.0 mg/kg levels was checked, Average recoveries of analytes from soil samples was in the range of 85-109% with a relative standard deviation of <4.2%. The limit of detection (LOD) of this method was in the range of 0.4 to 3.5 yg/kg. The proposed method is fast, easy to perform and could be utilized for monitoring of of three sulfonylurea herbicides including oxasulfuron, triasulfuron and prosulfuron residues in soil samples.",
publisher = "Beograd : Društvo za zaštitu bilja Srbije",
journal = "Book of Abstracts, Annual MGPR Meeting 2012 and International Conference on Food and Health Safety: Moving Towards a Sustainable Agriculture, 11-12 October 2012, Belgrade",
title = "Trace analysis of sulfonylurea herbicides in soil samples using solid phase extraction and liquid chromatography with photodiodes detection",
pages = "79-78",
url = "https://hdl.handle.net/21.15107/rcub_fiver_3336"
}

Grahovac, N., Suturović, Z., Sekulić, P., Stojanović, Z., Šunjka, D.,& Jakšić, S.. (2012). Trace analysis of sulfonylurea herbicides in soil samples using solid phase extraction and liquid chromatography with photodiodes detection. in Book of Abstracts, Annual MGPR Meeting 2012 and International Conference on Food and Health Safety: Moving Towards a Sustainable Agriculture, 11-12 October 2012, Belgrade
Beograd : Društvo za zaštitu bilja Srbije., 78-79.
https://hdl.handle.net/21.15107/rcub_fiver_3336

Grahovac N, Suturović Z, Sekulić P, Stojanović Z, Šunjka D, Jakšić S. Trace analysis of sulfonylurea herbicides in soil samples using solid phase extraction and liquid chromatography with photodiodes detection. in Book of Abstracts, Annual MGPR Meeting 2012 and International Conference on Food and Health Safety: Moving Towards a Sustainable Agriculture, 11-12 October 2012, Belgrade. 2012;:78-79.
https://hdl.handle.net/21.15107/rcub_fiver_3336 .

Grahovac, Nada, Suturović, Z., Sekulić, Petar, Stojanović, Z., Šunjka, Dragana, Jakšić, Snežana, "Trace analysis of sulfonylurea herbicides in soil samples using solid phase extraction and liquid chromatography with photodiodes detection" in Book of Abstracts, Annual MGPR Meeting 2012 and International Conference on Food and Health Safety: Moving Towards a Sustainable Agriculture, 11-12 October 2012, Belgrade (2012):78-79,
https://hdl.handle.net/21.15107/rcub_fiver_3336 .

TY  - CONF
AU  - Grahovac, Nada
AU  - Suturović, Z.
AU  - Sekulić, Petar
AU  - Šunjka, Dragana
AU  - Jakšić, Snežana
PY  - 2012
UR  - http://fiver.ifvcns.rs/handle/123456789/3316
AB  - Sulfonylurea compounds are characterized by high herbicidal activity allowing
low-dose rates for the control of many grasses and broadleaf weeds in the
agriculture of crops. This feature means, however, that under persistent
conditions (e.g. high pH of soil, little rainfall and poor microbial activity)
remaining low concentrations of these analytes can still affect the growth of
susceptible plants. Hence, in order to control carry-over from one growing ~
season to the next, productive sensitive and selective methods are required for
the determination of residues of sulfonylurea herbicides In soil.
A screening method has been developed for the determination of sulfonylurea
in various types of soils. Methodology is based on the use of microwave
assisted solvent extraction (MASE) for fast and efficient extraction of the
analytes from the soils and reversed-phase liquid chromatography (LC) with
UV detection at 230 nm for the instrumental analysis of uncleaned extracts.
Four types of soils, including sand and clay with a range in organic matter
content of 1.45-4.39% and seven sulfonylurea herbicides (nicosulfuron,
tritosulfuron, tribenuron-methyl, prosulfuron, rimsulfuron, oxasulfuron,
triasulfuron) were selected as matrices and analytes, respectively. The method
developed included the selection of suitable MASE and LC—UV conditions.
MASE. conditions were established providing efficient extraction without
degradation of the analytes, furthermore selectivity can be enhanced by ~
limiting the coextraction of interferences. Selected MASE conditions, including
mixture dichloromethane-acetonitrile as the extraction solvent, provided a
complete extraction of the analytes from soil samples. Method validation was
performed by analysing freshly spiked soil samples with sulfonylurea and
samples with aged residues at levels between 20 and 50 mg/ kg. Depending
on the spiked level and the type of spiked sample recoveries were obtained
between 70—-100% with relative standard deviations between 5 and 10%.
Evaluation of the data set with principal component analysis revealed that the
parameters increase of organic matter content of the soil samples and aged
residues negatively effect the recovery of the analytes. The benefits of MASE,
shorter extraction times, reduction of solvent consumption, improved selectivity
and the possibility of processing 24 samples simultaneously, make this
technique a good alternative to conventional extraction procedures.
PB  - Beograd : Društvo za zaštitu bilja Srbije
C3  - Book of Abstracts, Annual MGPR Meeting 2012 and International Conference on Food and Health Safety: Moving Towards a Sustainable Agriculture, 11-12 October 2012, Belgrade, Serbia
T1  - Microwave assisted solvent extraction and reversed phase liquid chromatography with diode array detection for screening sulfonylurea herbicides in soil samples
EP  - 76
SP  - 76
UR  - https://hdl.handle.net/21.15107/rcub_fiver_3316
ER  - 

@conference{
author = "Grahovac, Nada and Suturović, Z. and Sekulić, Petar and Šunjka, Dragana and Jakšić, Snežana",
year = "2012",
abstract = "Sulfonylurea compounds are characterized by high herbicidal activity allowing
low-dose rates for the control of many grasses and broadleaf weeds in the
agriculture of crops. This feature means, however, that under persistent
conditions (e.g. high pH of soil, little rainfall and poor microbial activity)
remaining low concentrations of these analytes can still affect the growth of
susceptible plants. Hence, in order to control carry-over from one growing ~
season to the next, productive sensitive and selective methods are required for
the determination of residues of sulfonylurea herbicides In soil.
A screening method has been developed for the determination of sulfonylurea
in various types of soils. Methodology is based on the use of microwave
assisted solvent extraction (MASE) for fast and efficient extraction of the
analytes from the soils and reversed-phase liquid chromatography (LC) with
UV detection at 230 nm for the instrumental analysis of uncleaned extracts.
Four types of soils, including sand and clay with a range in organic matter
content of 1.45-4.39% and seven sulfonylurea herbicides (nicosulfuron,
tritosulfuron, tribenuron-methyl, prosulfuron, rimsulfuron, oxasulfuron,
triasulfuron) were selected as matrices and analytes, respectively. The method
developed included the selection of suitable MASE and LC—UV conditions.
MASE. conditions were established providing efficient extraction without
degradation of the analytes, furthermore selectivity can be enhanced by ~
limiting the coextraction of interferences. Selected MASE conditions, including
mixture dichloromethane-acetonitrile as the extraction solvent, provided a
complete extraction of the analytes from soil samples. Method validation was
performed by analysing freshly spiked soil samples with sulfonylurea and
samples with aged residues at levels between 20 and 50 mg/ kg. Depending
on the spiked level and the type of spiked sample recoveries were obtained
between 70—-100% with relative standard deviations between 5 and 10%.
Evaluation of the data set with principal component analysis revealed that the
parameters increase of organic matter content of the soil samples and aged
residues negatively effect the recovery of the analytes. The benefits of MASE,
shorter extraction times, reduction of solvent consumption, improved selectivity
and the possibility of processing 24 samples simultaneously, make this
technique a good alternative to conventional extraction procedures.",
publisher = "Beograd : Društvo za zaštitu bilja Srbije",
journal = "Book of Abstracts, Annual MGPR Meeting 2012 and International Conference on Food and Health Safety: Moving Towards a Sustainable Agriculture, 11-12 October 2012, Belgrade, Serbia",
title = "Microwave assisted solvent extraction and reversed phase liquid chromatography with diode array detection for screening sulfonylurea herbicides in soil samples",
pages = "76-76",
url = "https://hdl.handle.net/21.15107/rcub_fiver_3316"
}

Grahovac, N., Suturović, Z., Sekulić, P., Šunjka, D.,& Jakšić, S.. (2012). Microwave assisted solvent extraction and reversed phase liquid chromatography with diode array detection for screening sulfonylurea herbicides in soil samples. in Book of Abstracts, Annual MGPR Meeting 2012 and International Conference on Food and Health Safety: Moving Towards a Sustainable Agriculture, 11-12 October 2012, Belgrade, Serbia
Beograd : Društvo za zaštitu bilja Srbije., 76-76.
https://hdl.handle.net/21.15107/rcub_fiver_3316

Grahovac N, Suturović Z, Sekulić P, Šunjka D, Jakšić S. Microwave assisted solvent extraction and reversed phase liquid chromatography with diode array detection for screening sulfonylurea herbicides in soil samples. in Book of Abstracts, Annual MGPR Meeting 2012 and International Conference on Food and Health Safety: Moving Towards a Sustainable Agriculture, 11-12 October 2012, Belgrade, Serbia. 2012;:76-76.
https://hdl.handle.net/21.15107/rcub_fiver_3316 .

Grahovac, Nada, Suturović, Z., Sekulić, Petar, Šunjka, Dragana, Jakšić, Snežana, "Microwave assisted solvent extraction and reversed phase liquid chromatography with diode array detection for screening sulfonylurea herbicides in soil samples" in Book of Abstracts, Annual MGPR Meeting 2012 and International Conference on Food and Health Safety: Moving Towards a Sustainable Agriculture, 11-12 October 2012, Belgrade, Serbia (2012):76-76,
https://hdl.handle.net/21.15107/rcub_fiver_3316 .

TY  - JOUR
AU  - Ninkov, Jordana
AU  - Paprić, Đorđe
AU  - Sekulić, Petar
AU  - Zeremski-Škorić, Tijana
AU  - Milić, Stanko
AU  - Vasin, Jovica
AU  - Kurjački, Igor
PY  - 2012
UR  - http://fiver.ifvcns.rs/handle/123456789/1068
AB  - The present study investigated the copper content of nine vineyard plots soils and four control plots as affected by the application of copper-based fungicides. The study was carried out at the site of Sremski Karlovci in the Serbian province of Vojvodina. The results showed that Cu soil concentrations are increased at the site and that there is a tendency towards soil contamination by this element. Of the 27 total samples studied, only one had Cu concentration above the maximum allowable concentration of 100 mg kg(-1). That sample's concentration was 111.7 mg kg(-1). All the samples from the 0-15 cm layer had copper levels that were above the critical value of 60 mg kg(-1). The mean value of the samples was 79.4 mg kg(-1), contrasting with the background concentration of 19.8 mg kg(-1). The results obtained for the studied vineyard soils indicate that these soils are potentially at risk and call for reduced application of Cu-based fungicides along with soil monitoring.
PB  - Taylor & Francis Ltd, Abingdon
T2  - International Journal of Environmental Analytical Chemistry
T1  - Copper content of vineyard soils at Sremski Karlovci (Vojvodina Province, Serbia) as affected by the use of copper-based fungicides
EP  - 600
IS  - 5
SP  - 592
VL  - 92
DO  - 10.1080/03067310903428743
ER  - 

@article{
author = "Ninkov, Jordana and Paprić, Đorđe and Sekulić, Petar and Zeremski-Škorić, Tijana and Milić, Stanko and Vasin, Jovica and Kurjački, Igor",
year = "2012",
abstract = "The present study investigated the copper content of nine vineyard plots soils and four control plots as affected by the application of copper-based fungicides. The study was carried out at the site of Sremski Karlovci in the Serbian province of Vojvodina. The results showed that Cu soil concentrations are increased at the site and that there is a tendency towards soil contamination by this element. Of the 27 total samples studied, only one had Cu concentration above the maximum allowable concentration of 100 mg kg(-1). That sample's concentration was 111.7 mg kg(-1). All the samples from the 0-15 cm layer had copper levels that were above the critical value of 60 mg kg(-1). The mean value of the samples was 79.4 mg kg(-1), contrasting with the background concentration of 19.8 mg kg(-1). The results obtained for the studied vineyard soils indicate that these soils are potentially at risk and call for reduced application of Cu-based fungicides along with soil monitoring.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "International Journal of Environmental Analytical Chemistry",
title = "Copper content of vineyard soils at Sremski Karlovci (Vojvodina Province, Serbia) as affected by the use of copper-based fungicides",
pages = "600-592",
number = "5",
volume = "92",
doi = "10.1080/03067310903428743"
}

Ninkov, J., Paprić, Đ., Sekulić, P., Zeremski-Škorić, T., Milić, S., Vasin, J.,& Kurjački, I.. (2012). Copper content of vineyard soils at Sremski Karlovci (Vojvodina Province, Serbia) as affected by the use of copper-based fungicides. in International Journal of Environmental Analytical Chemistry
Taylor & Francis Ltd, Abingdon., 92(5), 592-600.
https://doi.org/10.1080/03067310903428743

Ninkov J, Paprić Đ, Sekulić P, Zeremski-Škorić T, Milić S, Vasin J, Kurjački I. Copper content of vineyard soils at Sremski Karlovci (Vojvodina Province, Serbia) as affected by the use of copper-based fungicides. in International Journal of Environmental Analytical Chemistry. 2012;92(5):592-600.
doi:10.1080/03067310903428743 .

Ninkov, Jordana, Paprić, Đorđe, Sekulić, Petar, Zeremski-Škorić, Tijana, Milić, Stanko, Vasin, Jovica, Kurjački, Igor, "Copper content of vineyard soils at Sremski Karlovci (Vojvodina Province, Serbia) as affected by the use of copper-based fungicides" in International Journal of Environmental Analytical Chemistry, 92, no. 5 (2012):592-600,
https://doi.org/10.1080/03067310903428743 . .

TY  - CONF
AU  - Ninkov, Jordana
AU  - Sekulić, Petar
AU  - Milić, Stanko
AU  - Vasin, Jovica
AU  - Zeremski, Tijana
AU  - Brunet, Boris
PY  - 2012
UR  - http://fiver.ifvcns.rs/handle/123456789/1156
AB  - The Vojvodina Province in northern Serbia is known for its intensive field crops production. The Province comprises several political, geographic and of production entities. This paper presents the results of the research conducted in northern Vojvodina - northern Backa and northern Banat within the national project no. TR31072. These two regions belong to different geomorphological units. The former includes a loess plateau and loess terraces, the latter alluvial plains and a loess terrace. These two regions also differ in the soil types that can be found in them. Same as with other heavy metals, the content and distribution of Ni and Cr in soil depend to a large measure on the parent material from which these soils had developed. High contents of these two metals in soil, as well as of the other heavy metals, may be constraints to the quality of the agro ecosystem. The aims of this study were to determine the contents of Ni and Cr in the soils of the two regions in northern Vojvodina and to identify their origins. A grid superimposed on a soil map of Vojvodina (R = 1:50.000) by means of a GIS tool GIS ArcView 10 has divided the agricultural land of the Province into 4 x 4 km units, each representing an area of 1,600 ha. Of the total number of 435 bulked soil samples taken, 228 and 207 respective samples represented the regions of northern Backa and northern Banat. The samples were analyzed for pseudototal contents of Ni and Cr. The contents were determined by ICP-OES after microwave assisted digestion with HNO3 and H2O2. Of the total of 435 samples analyzed, Ni content above the MAC ( gt 50 mg/kg) was recorded in 18 samples (2 from northern Backa, 16 from northern Banat). Cr content above the MAC ( gt 100 mg/kg) was found in only one sample, which came from northern Backa. In the soils of northern Backa, Ni content ranged from 4.3 to 58.1 mg/kg and the average value was 26.5 +/- 7.0 mg/kg, Cr content ranged from 6.2 to 128.7 mg/kg, 34.5 +/- 11.2 mg/kg on average. In the soils of northern Banat, Ni content was significantly higher (p  lt  0.05), ranging from 4.6 to 96.4 mg/kg and with the average value of 36.2 +/- 11.7 mg/kg. Cr content was also significantly elevated, the interval ranging from 5.8 to 78.3 mg/kg and the average value being 46.5 +/- 14.8 mg/kg. High correlations between these two metals (p  lt  0.01) were found for the soils of northern Backa and northern Banat, 0.83 and 0.92, respectively. The high correlation between their contents was an indication of the common geochemical origin of these two metals. Our results showed that the contents of Ni and Cr were higher in northern Banat than in northern Backa, indicating the geochemical origin of the two metals in the former region, which had soils with increased clay content. The obtained results also indicated that the measured levels of Ni and Cr in the soil are not limiting factors for production of safe food in northern Vojvodina.
C3  - 12th International Multidisciplinary Scientific GeoConference & EXPO - Modern Management of Mine P
T1  - Pseudototal contents of nickel and chromium in agricultural soils of northern Vojvodina province, Serbia
EP  - 211
SP  - 205
VL  - 4
UR  - https://hdl.handle.net/21.15107/rcub_fiver_1156
ER  - 

@conference{
author = "Ninkov, Jordana and Sekulić, Petar and Milić, Stanko and Vasin, Jovica and Zeremski, Tijana and Brunet, Boris",
year = "2012",
abstract = "The Vojvodina Province in northern Serbia is known for its intensive field crops production. The Province comprises several political, geographic and of production entities. This paper presents the results of the research conducted in northern Vojvodina - northern Backa and northern Banat within the national project no. TR31072. These two regions belong to different geomorphological units. The former includes a loess plateau and loess terraces, the latter alluvial plains and a loess terrace. These two regions also differ in the soil types that can be found in them. Same as with other heavy metals, the content and distribution of Ni and Cr in soil depend to a large measure on the parent material from which these soils had developed. High contents of these two metals in soil, as well as of the other heavy metals, may be constraints to the quality of the agro ecosystem. The aims of this study were to determine the contents of Ni and Cr in the soils of the two regions in northern Vojvodina and to identify their origins. A grid superimposed on a soil map of Vojvodina (R = 1:50.000) by means of a GIS tool GIS ArcView 10 has divided the agricultural land of the Province into 4 x 4 km units, each representing an area of 1,600 ha. Of the total number of 435 bulked soil samples taken, 228 and 207 respective samples represented the regions of northern Backa and northern Banat. The samples were analyzed for pseudototal contents of Ni and Cr. The contents were determined by ICP-OES after microwave assisted digestion with HNO3 and H2O2. Of the total of 435 samples analyzed, Ni content above the MAC ( gt 50 mg/kg) was recorded in 18 samples (2 from northern Backa, 16 from northern Banat). Cr content above the MAC ( gt 100 mg/kg) was found in only one sample, which came from northern Backa. In the soils of northern Backa, Ni content ranged from 4.3 to 58.1 mg/kg and the average value was 26.5 +/- 7.0 mg/kg, Cr content ranged from 6.2 to 128.7 mg/kg, 34.5 +/- 11.2 mg/kg on average. In the soils of northern Banat, Ni content was significantly higher (p  lt  0.05), ranging from 4.6 to 96.4 mg/kg and with the average value of 36.2 +/- 11.7 mg/kg. Cr content was also significantly elevated, the interval ranging from 5.8 to 78.3 mg/kg and the average value being 46.5 +/- 14.8 mg/kg. High correlations between these two metals (p  lt  0.01) were found for the soils of northern Backa and northern Banat, 0.83 and 0.92, respectively. The high correlation between their contents was an indication of the common geochemical origin of these two metals. Our results showed that the contents of Ni and Cr were higher in northern Banat than in northern Backa, indicating the geochemical origin of the two metals in the former region, which had soils with increased clay content. The obtained results also indicated that the measured levels of Ni and Cr in the soil are not limiting factors for production of safe food in northern Vojvodina.",
journal = "12th International Multidisciplinary Scientific GeoConference & EXPO - Modern Management of Mine P",
title = "Pseudototal contents of nickel and chromium in agricultural soils of northern Vojvodina province, Serbia",
pages = "211-205",
volume = "4",
url = "https://hdl.handle.net/21.15107/rcub_fiver_1156"
}

Ninkov, J., Sekulić, P., Milić, S., Vasin, J., Zeremski, T.,& Brunet, B.. (2012). Pseudototal contents of nickel and chromium in agricultural soils of northern Vojvodina province, Serbia. in 12th International Multidisciplinary Scientific GeoConference & EXPO - Modern Management of Mine P, 4, 205-211.
https://hdl.handle.net/21.15107/rcub_fiver_1156

Ninkov J, Sekulić P, Milić S, Vasin J, Zeremski T, Brunet B. Pseudototal contents of nickel and chromium in agricultural soils of northern Vojvodina province, Serbia. in 12th International Multidisciplinary Scientific GeoConference & EXPO - Modern Management of Mine P. 2012;4:205-211.
https://hdl.handle.net/21.15107/rcub_fiver_1156 .

Ninkov, Jordana, Sekulić, Petar, Milić, Stanko, Vasin, Jovica, Zeremski, Tijana, Brunet, Boris, "Pseudototal contents of nickel and chromium in agricultural soils of northern Vojvodina province, Serbia" in 12th International Multidisciplinary Scientific GeoConference & EXPO - Modern Management of Mine P, 4 (2012):205-211,
https://hdl.handle.net/21.15107/rcub_fiver_1156 .

TY  - JOUR
AU  - Jakšić, Snežana
AU  - Sekulić, Petar
AU  - Vasin, Jovica
PY  - 2012
UR  - http://fiver.ifvcns.rs/handle/123456789/1130
AB  - Production of high-quality forage from alfalfa is influenced not only by the presence of nutrients, but also by the absence of harmful elements, such as heavy metals. The examination of the total heavy metals content (Ni, Cr, Pb and As) in gleyic chernozem soil of Srem loess terrace in Hrtkovci, under alfalfa (Medicago sativa L.) were carried out in 2011 in order to determine suitability for the production of safe forage. It total content of Pb, As and Crwas below the maximum permitted concentrations. The content of As, Cr and Ni was higher in the surface layer, unlike Pb, whose content was higher in the deeper layers of soil. A significant positive correlation was found between the total content of Ni, Cr and As. An increased concentration of Ni was found, which was above the maximum permitted concentration. It is necessary to further control its content and accessibility examination and extraction from plants, to prevent its entry into the food chain and provide safe food.
AB  - Proizvodnja visokokvalitetne stočne hrane od lucerke uslovljena je ne samo sadržajem hranljivih materija, nego i odsustvom štetnih elemenata, kao što su teški metali. Ispitivanja ukupnog sadržaj teških metala (Ni, Cr, Pb i As) u zemljištu oglejeni černozem sremske lesne terase, na području mesta Hrtkovci, pod usevom lucerke (Medicago sativa L.) izvedena su tokom 2011. radi utvrđivanja pogodnosti za proizvodnju zdravstveno bezbedne stočne hrane. Ukupan sadržaj Pb, As i Cr u ispitivanim uzorcima je bio ispod maksimalno dozvoljene količine. Sadržaj arsena, hroma i nikla bio je veći u površinskom sloju zemljišta, za razliku od olova, čiji je sadržaj bio veći u dubljem sloju. Pozitivna korelaciona veza konstatovana je između ukupnog sadržaja nikla, hroma i arsena. Utvrđen je povećan sadržaj Ni, iznad maksimalno dozvoljene količine. Neophodna je dalja kontrola njegovog sadržaja, kao i ispitivanje pristupačnosti i ekstrakcije od strane biljaka, kako bi se sprečio njegov ulazak u lanac ishrane i obezbedila proizvodnja zdrave hrane.
PB  - Institut za ratarstvo i povrtarstvo, Novi Sad
T2  - Ratarstvo i povrtarstvo / Field and Vegetable Crops Research
T1  - Content of heavy metals in gleyic chernozem of Srem loess terrace under alfalfa
T1  - Sadržaj teških metala u oglejenom černozemu sremske lesne terase pod usevom lucerke
EP  - 194
IS  - 2
SP  - 189
VL  - 49
DO  - 10.5937/ratpov49-1142
ER  - 

@article{
author = "Jakšić, Snežana and Sekulić, Petar and Vasin, Jovica",
year = "2012",
abstract = "Production of high-quality forage from alfalfa is influenced not only by the presence of nutrients, but also by the absence of harmful elements, such as heavy metals. The examination of the total heavy metals content (Ni, Cr, Pb and As) in gleyic chernozem soil of Srem loess terrace in Hrtkovci, under alfalfa (Medicago sativa L.) were carried out in 2011 in order to determine suitability for the production of safe forage. It total content of Pb, As and Crwas below the maximum permitted concentrations. The content of As, Cr and Ni was higher in the surface layer, unlike Pb, whose content was higher in the deeper layers of soil. A significant positive correlation was found between the total content of Ni, Cr and As. An increased concentration of Ni was found, which was above the maximum permitted concentration. It is necessary to further control its content and accessibility examination and extraction from plants, to prevent its entry into the food chain and provide safe food., Proizvodnja visokokvalitetne stočne hrane od lucerke uslovljena je ne samo sadržajem hranljivih materija, nego i odsustvom štetnih elemenata, kao što su teški metali. Ispitivanja ukupnog sadržaj teških metala (Ni, Cr, Pb i As) u zemljištu oglejeni černozem sremske lesne terase, na području mesta Hrtkovci, pod usevom lucerke (Medicago sativa L.) izvedena su tokom 2011. radi utvrđivanja pogodnosti za proizvodnju zdravstveno bezbedne stočne hrane. Ukupan sadržaj Pb, As i Cr u ispitivanim uzorcima je bio ispod maksimalno dozvoljene količine. Sadržaj arsena, hroma i nikla bio je veći u površinskom sloju zemljišta, za razliku od olova, čiji je sadržaj bio veći u dubljem sloju. Pozitivna korelaciona veza konstatovana je između ukupnog sadržaja nikla, hroma i arsena. Utvrđen je povećan sadržaj Ni, iznad maksimalno dozvoljene količine. Neophodna je dalja kontrola njegovog sadržaja, kao i ispitivanje pristupačnosti i ekstrakcije od strane biljaka, kako bi se sprečio njegov ulazak u lanac ishrane i obezbedila proizvodnja zdrave hrane.",
publisher = "Institut za ratarstvo i povrtarstvo, Novi Sad",
journal = "Ratarstvo i povrtarstvo / Field and Vegetable Crops Research",
title = "Content of heavy metals in gleyic chernozem of Srem loess terrace under alfalfa, Sadržaj teških metala u oglejenom černozemu sremske lesne terase pod usevom lucerke",
pages = "194-189",
number = "2",
volume = "49",
doi = "10.5937/ratpov49-1142"
}

Jakšić, S., Sekulić, P.,& Vasin, J.. (2012). Content of heavy metals in gleyic chernozem of Srem loess terrace under alfalfa. in Ratarstvo i povrtarstvo / Field and Vegetable Crops Research
Institut za ratarstvo i povrtarstvo, Novi Sad., 49(2), 189-194.
https://doi.org/10.5937/ratpov49-1142

Jakšić S, Sekulić P, Vasin J. Content of heavy metals in gleyic chernozem of Srem loess terrace under alfalfa. in Ratarstvo i povrtarstvo / Field and Vegetable Crops Research. 2012;49(2):189-194.
doi:10.5937/ratpov49-1142 .

Jakšić, Snežana, Sekulić, Petar, Vasin, Jovica, "Content of heavy metals in gleyic chernozem of Srem loess terrace under alfalfa" in Ratarstvo i povrtarstvo / Field and Vegetable Crops Research, 49, no. 2 (2012):189-194,
https://doi.org/10.5937/ratpov49-1142 . .

TY  - JOUR
AU  - Ninkov, Jordana
AU  - Milić, Stanko
AU  - Vasin, Jovica
AU  - Kicošev, Vesna
AU  - Sekulić, Petar
AU  - Zeremski, Tijana
AU  - Maksimović, Livija
PY  - 2012
UR  - http://fiver.ifvcns.rs/handle/123456789/1103
AB  - In order to establish the current status and assess the impact of agriculture in the area planned to be included into the envisaged environmental network, we analyzed the arable soil, pasture soil and sediments for the content of heavy metals. Out of a total 38 analyzed soil and sediment samples, only 2 were found to contain heavy metals in concentrations higher than the MAC for agriculture soil. An increased concentration of copper (189.1 mg/kg) was recorded in a sample of vineyard soil and increased nickel concentrations were recorded in one sample of pasture soil (60.9 mg/kg). Further research showed that the high Ni concentrations were of the geochemical origin, while the high Cu was of anthropogenic origin. Out of a total 10 sediment samples analyzed according to Dutch criteria for threshold values, increased concentrations of Cu and Zn were found in one sample, and high concentrations of Ni were found in 4 samples. At the same time, the heavy metal contents in the analyzed sediments were much below the anticipated remediation values.
AB  - U cilju analize stanja i procene uticaja poljoprivrede na području potencijalne lokalne ekološke mreže, analizirano je obradivo zemljište, zemljište pašnjaka i sediment jezera, na sadržaj teških metala (Cu, Zn, As, Pb, Ni, Cd i Cr). Od ukupno 38 analiziranih uzoraka zemljišta i sedimenta, samo u dva uzorka izmeren je sadržaj metala veći od MDK za poljoprivredno zemljište. Povišen sadržaj metala zabeležen je u slučaju jednog uzorka za bakar (189,1 mg kg-1) sa obradivog zemljišta iz vinograda i nikla za jedan uzorak pašnjaka (60,9 mg kg-1). Na osnovu detaljnijih istraživanja utvrđeno je da je povišen sadržaj Ni geohemijskog, dok je bakar antropogenog porekla. Od ukupno 10 analiziranih uzoraka sedimenta, prema holandskom kriterijumu za graničnu vrednost, povišen sadržaj Cu i Zn ima po jedan uzorak sedimenta i četiri uzorka imaju višu koncentraciju za Ni. Istovremeno, sadržaj metala u ispitivanom sedimentu je daleko manji od predviđenih remedijacionih vrednosti.
PB  - Institut za ratarstvo i povrtarstvo, Novi Sad
T2  - Ratarstvo i povrtarstvo / Field and Vegetable Crops Research
T1  - Heavy metals in soil and sediments of the planned ecological network of central Banat, Serbia
T1  - Teški metali u zemljištu i sedimentu potencijalne lokalne ekološke mreže srednjeg Banata
EP  - 23
IS  - 1
SP  - 17
VL  - 49
DO  - 10.5937/ratpov49-1280
ER  - 

@article{
author = "Ninkov, Jordana and Milić, Stanko and Vasin, Jovica and Kicošev, Vesna and Sekulić, Petar and Zeremski, Tijana and Maksimović, Livija",
year = "2012",
abstract = "In order to establish the current status and assess the impact of agriculture in the area planned to be included into the envisaged environmental network, we analyzed the arable soil, pasture soil and sediments for the content of heavy metals. Out of a total 38 analyzed soil and sediment samples, only 2 were found to contain heavy metals in concentrations higher than the MAC for agriculture soil. An increased concentration of copper (189.1 mg/kg) was recorded in a sample of vineyard soil and increased nickel concentrations were recorded in one sample of pasture soil (60.9 mg/kg). Further research showed that the high Ni concentrations were of the geochemical origin, while the high Cu was of anthropogenic origin. Out of a total 10 sediment samples analyzed according to Dutch criteria for threshold values, increased concentrations of Cu and Zn were found in one sample, and high concentrations of Ni were found in 4 samples. At the same time, the heavy metal contents in the analyzed sediments were much below the anticipated remediation values., U cilju analize stanja i procene uticaja poljoprivrede na području potencijalne lokalne ekološke mreže, analizirano je obradivo zemljište, zemljište pašnjaka i sediment jezera, na sadržaj teških metala (Cu, Zn, As, Pb, Ni, Cd i Cr). Od ukupno 38 analiziranih uzoraka zemljišta i sedimenta, samo u dva uzorka izmeren je sadržaj metala veći od MDK za poljoprivredno zemljište. Povišen sadržaj metala zabeležen je u slučaju jednog uzorka za bakar (189,1 mg kg-1) sa obradivog zemljišta iz vinograda i nikla za jedan uzorak pašnjaka (60,9 mg kg-1). Na osnovu detaljnijih istraživanja utvrđeno je da je povišen sadržaj Ni geohemijskog, dok je bakar antropogenog porekla. Od ukupno 10 analiziranih uzoraka sedimenta, prema holandskom kriterijumu za graničnu vrednost, povišen sadržaj Cu i Zn ima po jedan uzorak sedimenta i četiri uzorka imaju višu koncentraciju za Ni. Istovremeno, sadržaj metala u ispitivanom sedimentu je daleko manji od predviđenih remedijacionih vrednosti.",
publisher = "Institut za ratarstvo i povrtarstvo, Novi Sad",
journal = "Ratarstvo i povrtarstvo / Field and Vegetable Crops Research",
title = "Heavy metals in soil and sediments of the planned ecological network of central Banat, Serbia, Teški metali u zemljištu i sedimentu potencijalne lokalne ekološke mreže srednjeg Banata",
pages = "23-17",
number = "1",
volume = "49",
doi = "10.5937/ratpov49-1280"
}

Ninkov, J., Milić, S., Vasin, J., Kicošev, V., Sekulić, P., Zeremski, T.,& Maksimović, L.. (2012). Heavy metals in soil and sediments of the planned ecological network of central Banat, Serbia. in Ratarstvo i povrtarstvo / Field and Vegetable Crops Research
Institut za ratarstvo i povrtarstvo, Novi Sad., 49(1), 17-23.
https://doi.org/10.5937/ratpov49-1280

Ninkov J, Milić S, Vasin J, Kicošev V, Sekulić P, Zeremski T, Maksimović L. Heavy metals in soil and sediments of the planned ecological network of central Banat, Serbia. in Ratarstvo i povrtarstvo / Field and Vegetable Crops Research. 2012;49(1):17-23.
doi:10.5937/ratpov49-1280 .

Ninkov, Jordana, Milić, Stanko, Vasin, Jovica, Kicošev, Vesna, Sekulić, Petar, Zeremski, Tijana, Maksimović, Livija, "Heavy metals in soil and sediments of the planned ecological network of central Banat, Serbia" in Ratarstvo i povrtarstvo / Field and Vegetable Crops Research, 49, no. 1 (2012):17-23,
https://doi.org/10.5937/ratpov49-1280 . .

TY  - CONF
AU  - Grahovac, Nada
AU  - Sekulić, Petar
AU  - Lazić, Sanja
AU  - Jakšić, Snežana
AU  - Šunjka, Dragana B.
AU  - Radović, B.
PY  - 2012
UR  - http://fiver.ifvcns.rs/handle/123456789/1175
AB  - The use of pesticides in agriculture has brought many obvious benefits, but their inappropriate use can result in unacceptably high levels of these compounds in cereals. Pesticide residues can be found even when they are applied in accordance with good agricultural practices. A solid phase extraction (SPE) method has been developed for determination of methidathion in barley malt samples. The method involves a rapid extraction procedure with acetonitrile using salting out step. Non-polar coextractives are removed by passing a portion of the acetonitrile extract through an octadecyl (C18) solid phase extraction clean-up cartridge. An aliquot is taken and concentrated for second extract clean-up, which is done with a carbon cartridge coupled to an aminopropyl cartridge using acetonitrile: toluene 3:1 (v/v) as the elution solvent. Analysis is performed by gas chromatography, employing mass selective detection in the selected ion monitoring mode. The method rendered recoveries ranging between 91 and 96%, the associated relative standard deviations ranging between 1 and 3%. Limit of detection methidathion were less than or equal to 0.002 mg/kg. The applicability of the proposed method to detect and quantify pesticide residues has been demonstrated by the analysis of 20 genuine samples. The methidathion content in barley malt samples is not regulated by Serbian legislation (Official Gazette of RS, 28/11) and relevant EU regulation (Council Directive 90/642/EEC, 1990). The methidathion concentration found in barley malt samples were bellow the MAC value permitted by EU regulations and in accordance with the currently valid Serbian regulations for barley.
PB  - University of Novi Sad, Faculty of Technology
C3  - CEFood 2012 - Proceedings of 6th Central European Congress on Food
T1  - Determination of methidathion in barley malt by a solid phase extraction method
EP  - 581
SP  - 576
UR  - https://hdl.handle.net/21.15107/rcub_fiver_1175
ER  - 

@conference{
author = "Grahovac, Nada and Sekulić, Petar and Lazić, Sanja and Jakšić, Snežana and Šunjka, Dragana B. and Radović, B.",
year = "2012",
abstract = "The use of pesticides in agriculture has brought many obvious benefits, but their inappropriate use can result in unacceptably high levels of these compounds in cereals. Pesticide residues can be found even when they are applied in accordance with good agricultural practices. A solid phase extraction (SPE) method has been developed for determination of methidathion in barley malt samples. The method involves a rapid extraction procedure with acetonitrile using salting out step. Non-polar coextractives are removed by passing a portion of the acetonitrile extract through an octadecyl (C18) solid phase extraction clean-up cartridge. An aliquot is taken and concentrated for second extract clean-up, which is done with a carbon cartridge coupled to an aminopropyl cartridge using acetonitrile: toluene 3:1 (v/v) as the elution solvent. Analysis is performed by gas chromatography, employing mass selective detection in the selected ion monitoring mode. The method rendered recoveries ranging between 91 and 96%, the associated relative standard deviations ranging between 1 and 3%. Limit of detection methidathion were less than or equal to 0.002 mg/kg. The applicability of the proposed method to detect and quantify pesticide residues has been demonstrated by the analysis of 20 genuine samples. The methidathion content in barley malt samples is not regulated by Serbian legislation (Official Gazette of RS, 28/11) and relevant EU regulation (Council Directive 90/642/EEC, 1990). The methidathion concentration found in barley malt samples were bellow the MAC value permitted by EU regulations and in accordance with the currently valid Serbian regulations for barley.",
publisher = "University of Novi Sad, Faculty of Technology",
journal = "CEFood 2012 - Proceedings of 6th Central European Congress on Food",
title = "Determination of methidathion in barley malt by a solid phase extraction method",
pages = "581-576",
url = "https://hdl.handle.net/21.15107/rcub_fiver_1175"
}

Grahovac, N., Sekulić, P., Lazić, S., Jakšić, S., Šunjka, D. B.,& Radović, B.. (2012). Determination of methidathion in barley malt by a solid phase extraction method. in CEFood 2012 - Proceedings of 6th Central European Congress on Food
University of Novi Sad, Faculty of Technology., 576-581.
https://hdl.handle.net/21.15107/rcub_fiver_1175

Grahovac N, Sekulić P, Lazić S, Jakšić S, Šunjka DB, Radović B. Determination of methidathion in barley malt by a solid phase extraction method. in CEFood 2012 - Proceedings of 6th Central European Congress on Food. 2012;:576-581.
https://hdl.handle.net/21.15107/rcub_fiver_1175 .

Grahovac, Nada, Sekulić, Petar, Lazić, Sanja, Jakšić, Snežana, Šunjka, Dragana B., Radović, B., "Determination of methidathion in barley malt by a solid phase extraction method" in CEFood 2012 - Proceedings of 6th Central European Congress on Food (2012):576-581,
https://hdl.handle.net/21.15107/rcub_fiver_1175 .

TY  - CONF
AU  - Jakšić, Snežana
AU  - Sekulić, Petar
AU  - Grahovac, Nada
AU  - Malešević, Miroslav
AU  - Maksimović, Livija
AU  - Đukić, Vojin
AU  - Šunjka, Dragana
PY  - 2011
UR  - http://fiver.ifvcns.rs/handle/123456789/3300
AB  - Nitrogen is the most important element for high yield and in addition affects the adoption and
accumulation of certain ions in plants, including sulphur. The aim of this paper was to examine the effect of increasing
quantities of nitrogen fertilizer on sulphur adoption of winter wheat and triticale and to find optimum doses of nitrogen
that can give good grain quality. A two year stationery trial with increasing quantities of N (0, 50, 100 and 150 kg ha”)
and three varieties of wheat and one of triticale was performed at the experimant field of the Institute of Field and
Vegetable Crops in Novi Sad. The grain sulphur content of the winter wheat and triticale grew with increasing doses of
nitrogen fertilizers. The grain sulphur content of all cultivars responded positively to the increasing nitrogen quantities
up to the rate of 100 kg ha! N in first and 150 kg ha | in second year of examination. It was determined that the
genotypes responded differently to different rates of nitrogen fertilizers when it came to their sulphur contents. The
present study showed that by using the right quantities of nitrogen fertilizer we can optimize the fertilization in wheat
production with proper environmental care.
PB  - Novi Sad : University of Novi Sad, Faculty of Agriculture
C3  - Proceedings, 22nd International Symposium “Food safety production”, 19-25 June 2011, Trebinje, Bosnia and Herzegovina
T1  - Influence of nitrogen on sulphur adoption of winter wheat and triticale.
EP  - 391
SP  - 389
UR  - https://hdl.handle.net/21.15107/rcub_fiver_3300
ER  - 

@conference{
author = "Jakšić, Snežana and Sekulić, Petar and Grahovac, Nada and Malešević, Miroslav and Maksimović, Livija and Đukić, Vojin and Šunjka, Dragana",
year = "2011",
abstract = "Nitrogen is the most important element for high yield and in addition affects the adoption and
accumulation of certain ions in plants, including sulphur. The aim of this paper was to examine the effect of increasing
quantities of nitrogen fertilizer on sulphur adoption of winter wheat and triticale and to find optimum doses of nitrogen
that can give good grain quality. A two year stationery trial with increasing quantities of N (0, 50, 100 and 150 kg ha”)
and three varieties of wheat and one of triticale was performed at the experimant field of the Institute of Field and
Vegetable Crops in Novi Sad. The grain sulphur content of the winter wheat and triticale grew with increasing doses of
nitrogen fertilizers. The grain sulphur content of all cultivars responded positively to the increasing nitrogen quantities
up to the rate of 100 kg ha! N in first and 150 kg ha | in second year of examination. It was determined that the
genotypes responded differently to different rates of nitrogen fertilizers when it came to their sulphur contents. The
present study showed that by using the right quantities of nitrogen fertilizer we can optimize the fertilization in wheat
production with proper environmental care.",
publisher = "Novi Sad : University of Novi Sad, Faculty of Agriculture",
journal = "Proceedings, 22nd International Symposium “Food safety production”, 19-25 June 2011, Trebinje, Bosnia and Herzegovina",
title = "Influence of nitrogen on sulphur adoption of winter wheat and triticale.",
pages = "391-389",
url = "https://hdl.handle.net/21.15107/rcub_fiver_3300"
}

Jakšić, S., Sekulić, P., Grahovac, N., Malešević, M., Maksimović, L., Đukić, V.,& Šunjka, D.. (2011). Influence of nitrogen on sulphur adoption of winter wheat and triticale.. in Proceedings, 22nd International Symposium “Food safety production”, 19-25 June 2011, Trebinje, Bosnia and Herzegovina
Novi Sad : University of Novi Sad, Faculty of Agriculture., 389-391.
https://hdl.handle.net/21.15107/rcub_fiver_3300

Jakšić S, Sekulić P, Grahovac N, Malešević M, Maksimović L, Đukić V, Šunjka D. Influence of nitrogen on sulphur adoption of winter wheat and triticale.. in Proceedings, 22nd International Symposium “Food safety production”, 19-25 June 2011, Trebinje, Bosnia and Herzegovina. 2011;:389-391.
https://hdl.handle.net/21.15107/rcub_fiver_3300 .

Jakšić, Snežana, Sekulić, Petar, Grahovac, Nada, Malešević, Miroslav, Maksimović, Livija, Đukić, Vojin, Šunjka, Dragana, "Influence of nitrogen on sulphur adoption of winter wheat and triticale." in Proceedings, 22nd International Symposium “Food safety production”, 19-25 June 2011, Trebinje, Bosnia and Herzegovina (2011):389-391,
https://hdl.handle.net/21.15107/rcub_fiver_3300 .

TY  - CONF
AU  - Grahovac, Nada
AU  - Zeremski-Škorić, Tijana
AU  - Sekulić, Petar
AU  - Jakšić, Snežana
AU  - Radović, B.
PY  - 2011
UR  - http://fiver.ifvcns.rs/handle/123456789/3298
AB  - Applicability of solid phase extraction (SPE) in determination of pesticide residues in cereals
was confirmed by measuring bromophos contents in barley malt. The method entails simple extraction of pesticide
residues from sample with acetonitrile followed by solid phase extraction (SPE) clean-up step prior to the final
determination by gas chromatography with mass spectrometry . It is evaluated that performance of the method,
recoveries bromophos ranged between 80.1 and 129% with associated relative standard deviations between 2 and
13%. Limits of detection of bromophos were less or equal to 0.0013 mg/kg. The applicability of the proposed
method to detect and quantify pesticide residues has been demonstrated in the analysis of 13 real samples. The
findings for bromophos in barley malt samples were bellow the EU regulation MRL value for barley as well as in
conformance with the currently valid regulation of Serbia,
PB  - Novi Sad : University of Novi Sad, Faculty of Agriculture
C3  - Proceedings, 22nd International Symposium “Food safety production”, 19-25 June 2011, Trebinje, Bosnia and Herzegovina
T1  - Solid phase extraction in the analysis of bromophos residues in barley malt
EP  - 379
SP  - 377
UR  - https://hdl.handle.net/21.15107/rcub_fiver_3298
ER  - 

@conference{
author = "Grahovac, Nada and Zeremski-Škorić, Tijana and Sekulić, Petar and Jakšić, Snežana and Radović, B.",
year = "2011",
abstract = "Applicability of solid phase extraction (SPE) in determination of pesticide residues in cereals
was confirmed by measuring bromophos contents in barley malt. The method entails simple extraction of pesticide
residues from sample with acetonitrile followed by solid phase extraction (SPE) clean-up step prior to the final
determination by gas chromatography with mass spectrometry . It is evaluated that performance of the method,
recoveries bromophos ranged between 80.1 and 129% with associated relative standard deviations between 2 and
13%. Limits of detection of bromophos were less or equal to 0.0013 mg/kg. The applicability of the proposed
method to detect and quantify pesticide residues has been demonstrated in the analysis of 13 real samples. The
findings for bromophos in barley malt samples were bellow the EU regulation MRL value for barley as well as in
conformance with the currently valid regulation of Serbia,",
publisher = "Novi Sad : University of Novi Sad, Faculty of Agriculture",
journal = "Proceedings, 22nd International Symposium “Food safety production”, 19-25 June 2011, Trebinje, Bosnia and Herzegovina",
title = "Solid phase extraction in the analysis of bromophos residues in barley malt",
pages = "379-377",
url = "https://hdl.handle.net/21.15107/rcub_fiver_3298"
}

Grahovac, N., Zeremski-Škorić, T., Sekulić, P., Jakšić, S.,& Radović, B.. (2011). Solid phase extraction in the analysis of bromophos residues in barley malt. in Proceedings, 22nd International Symposium “Food safety production”, 19-25 June 2011, Trebinje, Bosnia and Herzegovina
Novi Sad : University of Novi Sad, Faculty of Agriculture., 377-379.
https://hdl.handle.net/21.15107/rcub_fiver_3298

Grahovac N, Zeremski-Škorić T, Sekulić P, Jakšić S, Radović B. Solid phase extraction in the analysis of bromophos residues in barley malt. in Proceedings, 22nd International Symposium “Food safety production”, 19-25 June 2011, Trebinje, Bosnia and Herzegovina. 2011;:377-379.
https://hdl.handle.net/21.15107/rcub_fiver_3298 .

Grahovac, Nada, Zeremski-Škorić, Tijana, Sekulić, Petar, Jakšić, Snežana, Radović, B., "Solid phase extraction in the analysis of bromophos residues in barley malt" in Proceedings, 22nd International Symposium “Food safety production”, 19-25 June 2011, Trebinje, Bosnia and Herzegovina (2011):377-379,
https://hdl.handle.net/21.15107/rcub_fiver_3298 .

TY  - CHAP
AU  - Zeremski-Škorić, Tijana
AU  - Sekulić, Petar
AU  - Ninkov, Jordana
PY  - 2011
UR  - http://fiver.ifvcns.rs/handle/123456789/1041
AB  - Pesticides are an integral part of agriculture today, but their use can lead to residues in food which have been linked to a wide spectrum of human health hazards. The determination and monitoring of pesticide residues in food has become an increasingly essential requirement for consumers, producers and authorities responsible for food quality control. Maximum residue limits (MRLs) are defined as the upper legal levels of a pesticide residue in or on food or feed which result from agricultural practices. Very low concentrations fixed as maximum residue limits (MRLs) have fostered the development of powerful sensitive and selective analytical methods to meet the requirements for analyzing pesticide residues in food samples. Fresh fruit and vegetables are an important part of a healthy diet, as they are a significant source of vitamins and minerals. But because fruits and vegetables are consumed raw or semi-processed, they are expected to contain higher pesticide residue levels than other food groups like milk or meat. Levels of pesticide residues in fruits and vegetables depend to a great extent on the method of growing (conventional, greenhouse or organic production) and the part of the year (season) in which they were produced. Food processing techniques such as washing, peeling, cooking etc. have been found to significantly reduce the pesticide residues in fruits and vegetables.
PB  - Nova Science Publishers, Inc.
T2  - Nutritional Insights & Food Safety
T1  - Pesticides
EP  - 160
SP  - 149
UR  - https://hdl.handle.net/21.15107/rcub_fiver_1041
ER  - 

@inbook{
author = "Zeremski-Škorić, Tijana and Sekulić, Petar and Ninkov, Jordana",
year = "2011",
abstract = "Pesticides are an integral part of agriculture today, but their use can lead to residues in food which have been linked to a wide spectrum of human health hazards. The determination and monitoring of pesticide residues in food has become an increasingly essential requirement for consumers, producers and authorities responsible for food quality control. Maximum residue limits (MRLs) are defined as the upper legal levels of a pesticide residue in or on food or feed which result from agricultural practices. Very low concentrations fixed as maximum residue limits (MRLs) have fostered the development of powerful sensitive and selective analytical methods to meet the requirements for analyzing pesticide residues in food samples. Fresh fruit and vegetables are an important part of a healthy diet, as they are a significant source of vitamins and minerals. But because fruits and vegetables are consumed raw or semi-processed, they are expected to contain higher pesticide residue levels than other food groups like milk or meat. Levels of pesticide residues in fruits and vegetables depend to a great extent on the method of growing (conventional, greenhouse or organic production) and the part of the year (season) in which they were produced. Food processing techniques such as washing, peeling, cooking etc. have been found to significantly reduce the pesticide residues in fruits and vegetables.",
publisher = "Nova Science Publishers, Inc.",
journal = "Nutritional Insights & Food Safety",
booktitle = "Pesticides",
pages = "160-149",
url = "https://hdl.handle.net/21.15107/rcub_fiver_1041"
}

Zeremski-Škorić, T., Sekulić, P.,& Ninkov, J.. (2011). Pesticides. in Nutritional Insights & Food Safety
Nova Science Publishers, Inc.., 149-160.
https://hdl.handle.net/21.15107/rcub_fiver_1041

Zeremski-Škorić T, Sekulić P, Ninkov J. Pesticides. in Nutritional Insights & Food Safety. 2011;:149-160.
https://hdl.handle.net/21.15107/rcub_fiver_1041 .

Zeremski-Škorić, Tijana, Sekulić, Petar, Ninkov, Jordana, "Pesticides" in Nutritional Insights & Food Safety (2011):149-160,
https://hdl.handle.net/21.15107/rcub_fiver_1041 .

TY  - JOUR
AU  - Milić, Stanko
AU  - Vasin, Jovica
AU  - Ninkov, Jordana
AU  - Zeremski, Tijana
AU  - Brunet, Borislav
AU  - Sekulić, Petar
PY  - 2011
UR  - http://fiver.ifvcns.rs/handle/123456789/962
AB  - The paper presents the results of soil fertility analysis for different crop growing areas of Vojvodina, Serbia. The analysis was conducted on a total of 76,868 plowland samples, accounting for 87% of the total number of samples tested in a larger project. On average, the neutral soil reaction, which is the most favorable type of reaction for crop production, was found in one quarter of all samples in our study. The percentage of samples with such reaction ranged from 12.6% (northern Bačka) to 46.5% (northern Srem). Looking at the free CaCO3 content by area, the highest mean value (10.54%) and proportions of calcareous (30.6%) and highly calcareous (53.1%) samples were found in northern Bačka, while the lowest values of these parameters were recorded in northern Srem. When it comes to the soil humus content, all three areas of Srem were found to be mostly slightly humic, as according to our analysis they had between 72.1 and 83.3% of samples that were slightly humic and only a small proportion (16.2-27.3%) of samples that are characterized as humic. Considering the readily available phosphorus content in Vojvodina as a whole, our analysis has shown that only one third of the soils in the province have an optimum supply of this element. What is of concern is that a considerable proportion of our samples were determined to be either very poor (6.9%) or poor (15.5%) in phosphorus, while about 7% had harmful or toxic levels of this macronutrient. In the case of the levels of readily available potassium, the largest number of the samples had either an optimum or high supply of the element. The sum of such samples ranged from 77.4 to 94.1% depending on the area.
AB  - U radu su prikazani rezultati analize plodnosti zemljišta izdvojeni u odnosu na proizvodne rejone u Vojvodini. Analiza je obuhvatila 76.868 uzoraka zemljišta koji pripadaju oraničnom načinu korišćenja, što predstavlja 87% od ukupnog broja uzoraka. Neutralna reakcija zemljišta, koja je i najpovoljnija za biljnu proizvodnju, zastupljena je u 1/4 uzoraka i u zavisnosti od regiona kreće se od 12,6% (severna Bačka) do 46,5% (severni Srem). Ako se posmatra sadržaj slobodnog CaCO3 po rejonima, najveća srednja vrednost (10,54%) kao i zastupljenost u klasama karbonatno (30,6%) i jako karbonatno (53,1%) utvrđena je za rejon severna Bačka, a najniže vrednosti ovih karakteristika za rejon severni Srem. Rezultati ispitivanja obezbeđenosti zemljišta humusom pokazuju da sva tri rejona u Srema većim delom pripadaju slabo humoznoj klasi i to od 72,1% do 83,3% sa veoma malim udelom uzoraka humoznih zemljišta 16,2% do 27,3%. Analiza sadržaja lakopristupačnog fosfora za celokupno područje Vojvodine pokazuje da se u klasu optimalne obezbeđenosti zemljišta fosforom može svrstati samo trećina uzoraka. Zabrinjavajuće je da znatan deo uzoraka spada u vrlo siromašnu (6,9%) i siromašnu klasu (15,5%), dok oko 7% pripada klasama sa štetnim i toksičnim sadržajem ovog makrohraniva. Najveći broj uzoraka u pogledu sadržaja lakopristupačnog kalijuma u ispitivanim proizvodnim rejonima nalazi se u klasama optimalne i visoke obezbeđenosti, čija se suma kreće u intervalu od 77,4% do 94,1%.
PB  - Institut za ratarstvo i povrtarstvo, Novi Sad
T2  - Ratarstvo i povrtarstvo / Field and Vegetable Crops Research
T1  - Fertility of privately owned plowland used for field crop production in Vojvodina, Serbia
T1  - Plodnost oranica ratarskih proizvodnih rejona Vojvodine u privatnom vlasništvu
EP  - 368
IS  - 2
SP  - 359
VL  - 48
DO  - 10.5937/ratpov1102359M
ER  - 

@article{
author = "Milić, Stanko and Vasin, Jovica and Ninkov, Jordana and Zeremski, Tijana and Brunet, Borislav and Sekulić, Petar",
year = "2011",
abstract = "The paper presents the results of soil fertility analysis for different crop growing areas of Vojvodina, Serbia. The analysis was conducted on a total of 76,868 plowland samples, accounting for 87% of the total number of samples tested in a larger project. On average, the neutral soil reaction, which is the most favorable type of reaction for crop production, was found in one quarter of all samples in our study. The percentage of samples with such reaction ranged from 12.6% (northern Bačka) to 46.5% (northern Srem). Looking at the free CaCO3 content by area, the highest mean value (10.54%) and proportions of calcareous (30.6%) and highly calcareous (53.1%) samples were found in northern Bačka, while the lowest values of these parameters were recorded in northern Srem. When it comes to the soil humus content, all three areas of Srem were found to be mostly slightly humic, as according to our analysis they had between 72.1 and 83.3% of samples that were slightly humic and only a small proportion (16.2-27.3%) of samples that are characterized as humic. Considering the readily available phosphorus content in Vojvodina as a whole, our analysis has shown that only one third of the soils in the province have an optimum supply of this element. What is of concern is that a considerable proportion of our samples were determined to be either very poor (6.9%) or poor (15.5%) in phosphorus, while about 7% had harmful or toxic levels of this macronutrient. In the case of the levels of readily available potassium, the largest number of the samples had either an optimum or high supply of the element. The sum of such samples ranged from 77.4 to 94.1% depending on the area., U radu su prikazani rezultati analize plodnosti zemljišta izdvojeni u odnosu na proizvodne rejone u Vojvodini. Analiza je obuhvatila 76.868 uzoraka zemljišta koji pripadaju oraničnom načinu korišćenja, što predstavlja 87% od ukupnog broja uzoraka. Neutralna reakcija zemljišta, koja je i najpovoljnija za biljnu proizvodnju, zastupljena je u 1/4 uzoraka i u zavisnosti od regiona kreće se od 12,6% (severna Bačka) do 46,5% (severni Srem). Ako se posmatra sadržaj slobodnog CaCO3 po rejonima, najveća srednja vrednost (10,54%) kao i zastupljenost u klasama karbonatno (30,6%) i jako karbonatno (53,1%) utvrđena je za rejon severna Bačka, a najniže vrednosti ovih karakteristika za rejon severni Srem. Rezultati ispitivanja obezbeđenosti zemljišta humusom pokazuju da sva tri rejona u Srema većim delom pripadaju slabo humoznoj klasi i to od 72,1% do 83,3% sa veoma malim udelom uzoraka humoznih zemljišta 16,2% do 27,3%. Analiza sadržaja lakopristupačnog fosfora za celokupno područje Vojvodine pokazuje da se u klasu optimalne obezbeđenosti zemljišta fosforom može svrstati samo trećina uzoraka. Zabrinjavajuće je da znatan deo uzoraka spada u vrlo siromašnu (6,9%) i siromašnu klasu (15,5%), dok oko 7% pripada klasama sa štetnim i toksičnim sadržajem ovog makrohraniva. Najveći broj uzoraka u pogledu sadržaja lakopristupačnog kalijuma u ispitivanim proizvodnim rejonima nalazi se u klasama optimalne i visoke obezbeđenosti, čija se suma kreće u intervalu od 77,4% do 94,1%.",
publisher = "Institut za ratarstvo i povrtarstvo, Novi Sad",
journal = "Ratarstvo i povrtarstvo / Field and Vegetable Crops Research",
title = "Fertility of privately owned plowland used for field crop production in Vojvodina, Serbia, Plodnost oranica ratarskih proizvodnih rejona Vojvodine u privatnom vlasništvu",
pages = "368-359",
number = "2",
volume = "48",
doi = "10.5937/ratpov1102359M"
}

Milić, S., Vasin, J., Ninkov, J., Zeremski, T., Brunet, B.,& Sekulić, P.. (2011). Fertility of privately owned plowland used for field crop production in Vojvodina, Serbia. in Ratarstvo i povrtarstvo / Field and Vegetable Crops Research
Institut za ratarstvo i povrtarstvo, Novi Sad., 48(2), 359-368.
https://doi.org/10.5937/ratpov1102359M

Milić S, Vasin J, Ninkov J, Zeremski T, Brunet B, Sekulić P. Fertility of privately owned plowland used for field crop production in Vojvodina, Serbia. in Ratarstvo i povrtarstvo / Field and Vegetable Crops Research. 2011;48(2):359-368.
doi:10.5937/ratpov1102359M .

Milić, Stanko, Vasin, Jovica, Ninkov, Jordana, Zeremski, Tijana, Brunet, Borislav, Sekulić, Petar, "Fertility of privately owned plowland used for field crop production in Vojvodina, Serbia" in Ratarstvo i povrtarstvo / Field and Vegetable Crops Research, 48, no. 2 (2011):359-368,
https://doi.org/10.5937/ratpov1102359M . .

TY  - JOUR
AU  - Ličina, Vlado
AU  - Nešić, Ljiljana
AU  - Belić, Milivoj
AU  - Hadžić, Vladimir B.
AU  - Sekulić, Petar
AU  - Vasin, Jovica
AU  - Ninkov, Jordana
PY  - 2011
UR  - http://fiver.ifvcns.rs/handle/123456789/930
AB  - In view of the topicality of the subject of soil protection from degradation, the paper discusses some basic considerations concerning soil genesis, pedogenetic processes, and soil degradation caused by human activity in Serbia. It can be said that at present the main processes connected with soil loss and soil degradation in Serbia are as follows: 1) change in the intended use of the soil (soil loss and damage due to industrial, mining, and power-producing activities) 2) loss of soil organic matter, 3) acidification and salinization of soil, 4) different forms of soil contaminations (as a result of the excessive use of agrochemicals, heavy metals, industrial pollution, etc.), 5) aeolian and water erosion, and 6) compaction and other types of physical degradation of agricultural soil. The most important aspects of soil protection from degradation are preventive measures, the identification of potential dangers, and the finding of ways to overcome them. Only usage of systematic monitoring of soil quality and other tools provide proper results in the protection of the soil from degradation.
AB  - Imajući u vidu aktuelnost problematike zaštite zemljišta od degradacije, u ovom radu su prikazana osnovna razmatranja vezana za postanak zemljišta, pedogenetske procese, kao i procese degradacije zemljišta u Srbiji izazvane aktivnošću čoveka. Danas bi se moglo reći da su glavni procesi vezani za gubitak i degradaciju zemljišta na teritoriji Srbije sledeći: 1) promena namene korišćenja zemljišta (gubitak i oštećenja zemljišta usled industrijskih, rudarskih i energetskih aktivnosti), 2) smanjenje sadržaja organske materije zemljišta, 3) zakišeljavanje i zaslanjivanje zemljišta, 4) različiti oblici zagađivanja (kontaminacije) zemljišta (prekomerna primena agrohemikalija, teški metali, industrijska zagađenja i sl.), 5) eolska i vodna erozija, i 6) sabijanje i drugo fizičko propadanje zemljišta. U zaštiti zemljišta od degradacije najznačajnije su preventivne mere, uočavanje opasnosti i iznalaženje odgovarajućih rešenja za njihovo prevazilaženje. U tom cilju, predlaže se sistematska kontrola, tj. monitoring kvaliteta zemljišta.
PB  - Institut za ratarstvo i povrtarstvo, Novi Sad
T2  - Ratarstvo i povrtarstvo / Field and Vegetable Crops Research
T1  - The soils of Serbia and their degradation
T1  - Zemljišta Srbije i prisutni degradacioni procesi
EP  - 290
IS  - 2
SP  - 285
VL  - 48
DO  - 10.5937/ratpov1102285L
ER  - 

@article{
author = "Ličina, Vlado and Nešić, Ljiljana and Belić, Milivoj and Hadžić, Vladimir B. and Sekulić, Petar and Vasin, Jovica and Ninkov, Jordana",
year = "2011",
abstract = "In view of the topicality of the subject of soil protection from degradation, the paper discusses some basic considerations concerning soil genesis, pedogenetic processes, and soil degradation caused by human activity in Serbia. It can be said that at present the main processes connected with soil loss and soil degradation in Serbia are as follows: 1) change in the intended use of the soil (soil loss and damage due to industrial, mining, and power-producing activities) 2) loss of soil organic matter, 3) acidification and salinization of soil, 4) different forms of soil contaminations (as a result of the excessive use of agrochemicals, heavy metals, industrial pollution, etc.), 5) aeolian and water erosion, and 6) compaction and other types of physical degradation of agricultural soil. The most important aspects of soil protection from degradation are preventive measures, the identification of potential dangers, and the finding of ways to overcome them. Only usage of systematic monitoring of soil quality and other tools provide proper results in the protection of the soil from degradation., Imajući u vidu aktuelnost problematike zaštite zemljišta od degradacije, u ovom radu su prikazana osnovna razmatranja vezana za postanak zemljišta, pedogenetske procese, kao i procese degradacije zemljišta u Srbiji izazvane aktivnošću čoveka. Danas bi se moglo reći da su glavni procesi vezani za gubitak i degradaciju zemljišta na teritoriji Srbije sledeći: 1) promena namene korišćenja zemljišta (gubitak i oštećenja zemljišta usled industrijskih, rudarskih i energetskih aktivnosti), 2) smanjenje sadržaja organske materije zemljišta, 3) zakišeljavanje i zaslanjivanje zemljišta, 4) različiti oblici zagađivanja (kontaminacije) zemljišta (prekomerna primena agrohemikalija, teški metali, industrijska zagađenja i sl.), 5) eolska i vodna erozija, i 6) sabijanje i drugo fizičko propadanje zemljišta. U zaštiti zemljišta od degradacije najznačajnije su preventivne mere, uočavanje opasnosti i iznalaženje odgovarajućih rešenja za njihovo prevazilaženje. U tom cilju, predlaže se sistematska kontrola, tj. monitoring kvaliteta zemljišta.",
publisher = "Institut za ratarstvo i povrtarstvo, Novi Sad",
journal = "Ratarstvo i povrtarstvo / Field and Vegetable Crops Research",
title = "The soils of Serbia and their degradation, Zemljišta Srbije i prisutni degradacioni procesi",
pages = "290-285",
number = "2",
volume = "48",
doi = "10.5937/ratpov1102285L"
}

Ličina, V., Nešić, L., Belić, M., Hadžić, V. B., Sekulić, P., Vasin, J.,& Ninkov, J.. (2011). The soils of Serbia and their degradation. in Ratarstvo i povrtarstvo / Field and Vegetable Crops Research
Institut za ratarstvo i povrtarstvo, Novi Sad., 48(2), 285-290.
https://doi.org/10.5937/ratpov1102285L

Ličina V, Nešić L, Belić M, Hadžić VB, Sekulić P, Vasin J, Ninkov J. The soils of Serbia and their degradation. in Ratarstvo i povrtarstvo / Field and Vegetable Crops Research. 2011;48(2):285-290.
doi:10.5937/ratpov1102285L .

Ličina, Vlado, Nešić, Ljiljana, Belić, Milivoj, Hadžić, Vladimir B., Sekulić, Petar, Vasin, Jovica, Ninkov, Jordana, "The soils of Serbia and their degradation" in Ratarstvo i povrtarstvo / Field and Vegetable Crops Research, 48, no. 2 (2011):285-290,
https://doi.org/10.5937/ratpov1102285L . .

TY  - CONF
AU  - Milošević, Nada
AU  - Sekulić, Petar
AU  - Tintor, Branislava
AU  - Marinković, Jelena
AU  - Ninkov, Jordana
PY  - 2010
UR  - http://fiver.ifvcns.rs/handle/123456789/2591
AB  - Disposal of drilling mud is a considerable problem in the process of crude oil pumping and
transportation. Microorganisms are the most important component of the soil biological phase as their enzymatic systems take part in degradation and synthesis of soil compounds. Soil samples were taken from the location of Banatsko Karadjordjevo. The results show high values of total numbers of microorganisms and azotobacters in indigenous soil than in deposol.
The numbers of ammonifiers, oligonitrophiles, actinomycetes and fungi were higher in deposols
than in the local soil. The density of the studied groups of microorganisms and DHA decreased with depth, with the exception of actinomycetes.
PB  - Bor : Univerzitet u Beogradu, Tehnički fakultet Bor
C3  - Proceedings, 18th International Scientific and Professional Meeting Ecological Truth, 1–4 June 2010, Apatin, Serbia
T1  - Microbiological properties of deposol in the location of Banatsko Karadjordjevo
EP  - 273
SP  - 268
UR  - https://hdl.handle.net/21.15107/rcub_fiver_2591
ER  - 

@conference{
author = "Milošević, Nada and Sekulić, Petar and Tintor, Branislava and Marinković, Jelena and Ninkov, Jordana",
year = "2010",
abstract = "Disposal of drilling mud is a considerable problem in the process of crude oil pumping and
transportation. Microorganisms are the most important component of the soil biological phase as their enzymatic systems take part in degradation and synthesis of soil compounds. Soil samples were taken from the location of Banatsko Karadjordjevo. The results show high values of total numbers of microorganisms and azotobacters in indigenous soil than in deposol.
The numbers of ammonifiers, oligonitrophiles, actinomycetes and fungi were higher in deposols
than in the local soil. The density of the studied groups of microorganisms and DHA decreased with depth, with the exception of actinomycetes.",
publisher = "Bor : Univerzitet u Beogradu, Tehnički fakultet Bor",
journal = "Proceedings, 18th International Scientific and Professional Meeting Ecological Truth, 1–4 June 2010, Apatin, Serbia",
title = "Microbiological properties of deposol in the location of Banatsko Karadjordjevo",
pages = "273-268",
url = "https://hdl.handle.net/21.15107/rcub_fiver_2591"
}

Milošević, N., Sekulić, P., Tintor, B., Marinković, J.,& Ninkov, J.. (2010). Microbiological properties of deposol in the location of Banatsko Karadjordjevo. in Proceedings, 18th International Scientific and Professional Meeting Ecological Truth, 1–4 June 2010, Apatin, Serbia
Bor : Univerzitet u Beogradu, Tehnički fakultet Bor., 268-273.
https://hdl.handle.net/21.15107/rcub_fiver_2591

Milošević N, Sekulić P, Tintor B, Marinković J, Ninkov J. Microbiological properties of deposol in the location of Banatsko Karadjordjevo. in Proceedings, 18th International Scientific and Professional Meeting Ecological Truth, 1–4 June 2010, Apatin, Serbia. 2010;:268-273.
https://hdl.handle.net/21.15107/rcub_fiver_2591 .

Milošević, Nada, Sekulić, Petar, Tintor, Branislava, Marinković, Jelena, Ninkov, Jordana, "Microbiological properties of deposol in the location of Banatsko Karadjordjevo" in Proceedings, 18th International Scientific and Professional Meeting Ecological Truth, 1–4 June 2010, Apatin, Serbia (2010):268-273,
https://hdl.handle.net/21.15107/rcub_fiver_2591 .

TY  - JOUR
AU  - Ninkov, Jordana
AU  - Zeremski-Škorić, Tijana
AU  - Sekulić, Petar
AU  - Vasin, Jovica
AU  - Milić, Stanko
AU  - Paprić, Đorđe
AU  - Kurjački, Igor
PY  - 2010
UR  - http://fiver.ifvcns.rs/handle/123456789/903
AB  - The study presented in this paper deals with heavy metals content in vineyard soils from 44 individual producers' lots from Vojvodina province, as well as detailed analyses of heavy metals content in vineyards from 3 sites (Sremski Karlovci, Banoštor and Vršac) in comparison with the control sample. Vojvodinian vineyard soils are generally not contaminated with heavy metals, with the exception of copper due to long-term intensive application of copper-based fungicide. In soil of 44 small vineyards, local contamination with Cr and Zn was found on one locality each, and geochemical origin Ni content higher than MAC in 9 samples from Fruška gora. Based on the second part of this study, content of all heavy metals, excluding Cu, was below MAC. However, in comparison to control sample, the content of As, Cd, Co, Cr, Ni and Pb was higher in vineyard soils at due to antropogenic influence and application of agro-chemicals. The highest concentration of Cu 336 mg kg-1 was noted in Petrovaradin in surface layer of soil, which is three times the value of MAC (100 mg kg-1). Out of total 226 analysed samples from all depths, 44 samples exceeded MAC value. It is especially unfavourable that 23 % of all analysed vineyard soils surface layers are in critical concentration zone (>60 mg kg-1) and 33 % exceed MAC, which shows that more than half of analysed Vojvodina vineyards are in need of monitoring, risk assessment and reduction of copper-based chemicals application.
AB  - U ovom radu prikazani su rezultati ispitivanja sadržaja teških metala u zemljištima vinograda individualnih proizvođača sa 44 parcele širom Vojvodine i detaljnija ispitivanja sadržaja teških metala u vinogradima na tri lokaliteta (Sr. Karlovci, Banoštor i Vršac) u poređenju sa kontrolom. Generalno gledano, zemljišta vinograda Vojvodine nisu opterećena teškim metalima osim bakrom, što je posledica dugotrajne i intenzivne primene fungicida na bazi bakra. U zemljištu 44 vinograda malih površina postoje lokalna zagađenja Cr i Zn na po jednom lokalitetu, dok je sadržaj Ni koji premašuje MDK u 9 uzoraka sa Fruške gore geohemijskog porekla. Na osnovu drugog dela istraživanja, sadržaj svih teških metala osim Cu je ispod MDK, međutim u poređenju sa kontrolom sadržaj As, Cd, Co, Cr, Ni i Pb je veći u zemljištu vinograda usled antropogenog uticaja primenom agrohemikalija. Najveća koncentracija Cu od 336 mg kg-1 zabeležena je u Petrovaradinu u površinskom sloju zemljišta, što je vrednost tri puta veća od MDK (100 mg kg-1). Od ukupno analiziranih 226 uzoraka po svim dubinama, 44 uzorka premašuje MDK. Posebno je nepovoljno što u površinskom sloju zemljišta svih ispitivanih vinograda 23 % spada u zonu kritične koncentracije (>60 mg kg-1) a 33 % premašuje MDK, što pokazuje da je na više od polovine ispitivanih vinograda u Vojvodini potrebno sprovesti monitoring, procenu rizika i redukciju primene bakarnih preparata.
PB  - Institut za ratarstvo i povrtarstvo, Novi Sad
T2  - Ratarstvo i povrtarstvo / Field and Vegetable Crops Research
T1  - Heavy metals in vineyard soils of Vojvodina province
T1  - Teški metali u zemljištima vinograda Vojvodine
EP  - 279
IS  - 1
SP  - 273
VL  - 47
UR  - https://hdl.handle.net/21.15107/rcub_fiver_903
ER  - 

@article{
author = "Ninkov, Jordana and Zeremski-Škorić, Tijana and Sekulić, Petar and Vasin, Jovica and Milić, Stanko and Paprić, Đorđe and Kurjački, Igor",
year = "2010",
abstract = "The study presented in this paper deals with heavy metals content in vineyard soils from 44 individual producers' lots from Vojvodina province, as well as detailed analyses of heavy metals content in vineyards from 3 sites (Sremski Karlovci, Banoštor and Vršac) in comparison with the control sample. Vojvodinian vineyard soils are generally not contaminated with heavy metals, with the exception of copper due to long-term intensive application of copper-based fungicide. In soil of 44 small vineyards, local contamination with Cr and Zn was found on one locality each, and geochemical origin Ni content higher than MAC in 9 samples from Fruška gora. Based on the second part of this study, content of all heavy metals, excluding Cu, was below MAC. However, in comparison to control sample, the content of As, Cd, Co, Cr, Ni and Pb was higher in vineyard soils at due to antropogenic influence and application of agro-chemicals. The highest concentration of Cu 336 mg kg-1 was noted in Petrovaradin in surface layer of soil, which is three times the value of MAC (100 mg kg-1). Out of total 226 analysed samples from all depths, 44 samples exceeded MAC value. It is especially unfavourable that 23 % of all analysed vineyard soils surface layers are in critical concentration zone (>60 mg kg-1) and 33 % exceed MAC, which shows that more than half of analysed Vojvodina vineyards are in need of monitoring, risk assessment and reduction of copper-based chemicals application., U ovom radu prikazani su rezultati ispitivanja sadržaja teških metala u zemljištima vinograda individualnih proizvođača sa 44 parcele širom Vojvodine i detaljnija ispitivanja sadržaja teških metala u vinogradima na tri lokaliteta (Sr. Karlovci, Banoštor i Vršac) u poređenju sa kontrolom. Generalno gledano, zemljišta vinograda Vojvodine nisu opterećena teškim metalima osim bakrom, što je posledica dugotrajne i intenzivne primene fungicida na bazi bakra. U zemljištu 44 vinograda malih površina postoje lokalna zagađenja Cr i Zn na po jednom lokalitetu, dok je sadržaj Ni koji premašuje MDK u 9 uzoraka sa Fruške gore geohemijskog porekla. Na osnovu drugog dela istraživanja, sadržaj svih teških metala osim Cu je ispod MDK, međutim u poređenju sa kontrolom sadržaj As, Cd, Co, Cr, Ni i Pb je veći u zemljištu vinograda usled antropogenog uticaja primenom agrohemikalija. Najveća koncentracija Cu od 336 mg kg-1 zabeležena je u Petrovaradinu u površinskom sloju zemljišta, što je vrednost tri puta veća od MDK (100 mg kg-1). Od ukupno analiziranih 226 uzoraka po svim dubinama, 44 uzorka premašuje MDK. Posebno je nepovoljno što u površinskom sloju zemljišta svih ispitivanih vinograda 23 % spada u zonu kritične koncentracije (>60 mg kg-1) a 33 % premašuje MDK, što pokazuje da je na više od polovine ispitivanih vinograda u Vojvodini potrebno sprovesti monitoring, procenu rizika i redukciju primene bakarnih preparata.",
publisher = "Institut za ratarstvo i povrtarstvo, Novi Sad",
journal = "Ratarstvo i povrtarstvo / Field and Vegetable Crops Research",
title = "Heavy metals in vineyard soils of Vojvodina province, Teški metali u zemljištima vinograda Vojvodine",
pages = "279-273",
number = "1",
volume = "47",
url = "https://hdl.handle.net/21.15107/rcub_fiver_903"
}

Ninkov, J., Zeremski-Škorić, T., Sekulić, P., Vasin, J., Milić, S., Paprić, Đ.,& Kurjački, I.. (2010). Heavy metals in vineyard soils of Vojvodina province. in Ratarstvo i povrtarstvo / Field and Vegetable Crops Research
Institut za ratarstvo i povrtarstvo, Novi Sad., 47(1), 273-279.
https://hdl.handle.net/21.15107/rcub_fiver_903

Ninkov J, Zeremski-Škorić T, Sekulić P, Vasin J, Milić S, Paprić Đ, Kurjački I. Heavy metals in vineyard soils of Vojvodina province. in Ratarstvo i povrtarstvo / Field and Vegetable Crops Research. 2010;47(1):273-279.
https://hdl.handle.net/21.15107/rcub_fiver_903 .

Ninkov, Jordana, Zeremski-Škorić, Tijana, Sekulić, Petar, Vasin, Jovica, Milić, Stanko, Paprić, Đorđe, Kurjački, Igor, "Heavy metals in vineyard soils of Vojvodina province" in Ratarstvo i povrtarstvo / Field and Vegetable Crops Research, 47, no. 1 (2010):273-279,
https://hdl.handle.net/21.15107/rcub_fiver_903 .