TY  - JOUR
AU  - Macak, Milan
AU  - Đalović, Ivica
AU  - Smatana, Josef
AU  - Roharikova, Adriana Kiss
AU  - Saulić, Markola
AU  - Kulina, Mirko
PY  - 2020
UR  - http://fiver.ifvcns.rs/handle/123456789/2010
AB  - The common effects of cultivation practices, weed management measures and crop rotation on Elytrigia repens population dynamics under condition of large scale fields were studied in South-Western Slovakia during 2007-2014. The evaluated fields reflect the changes of cultivation practices associated with the growing crops in intensive crop rotation systems characterized by high proportion of cereals, changes of tillage practices (mouldboard stubble cultivation replaced by less effective disc stubble cultivation) and exclusion of cover crops and leguminous forage crops. Introduction of management practices with lack of preventive measures into six evaluated large-scale fields led to increasing proliferation of E. repens. Therefore, intensive herbicide application (from 2 to 5 application during 8-year rotation period) was needed to manage E. repens satisfactorily. E. repens was substantially higher in crops following two crops period of sunflower and spring barley crops, but lower in crops following winter oilseed rape.
PB  - Friends Science Publ, Faisalabad
T2  - International Journal of Agriculture & Biology
T1  - Temporal Changes of Elytrigia repens Density in Intensive Cereal-Based Cropping Systems
EP  - 200
IS  - 2
SP  - 195
VL  - 24
DO  - 10.17957/IJAB/15.1423
ER  - 

@article{
author = "Macak, Milan and Đalović, Ivica and Smatana, Josef and Roharikova, Adriana Kiss and Saulić, Markola and Kulina, Mirko",
year = "2020",
abstract = "The common effects of cultivation practices, weed management measures and crop rotation on Elytrigia repens population dynamics under condition of large scale fields were studied in South-Western Slovakia during 2007-2014. The evaluated fields reflect the changes of cultivation practices associated with the growing crops in intensive crop rotation systems characterized by high proportion of cereals, changes of tillage practices (mouldboard stubble cultivation replaced by less effective disc stubble cultivation) and exclusion of cover crops and leguminous forage crops. Introduction of management practices with lack of preventive measures into six evaluated large-scale fields led to increasing proliferation of E. repens. Therefore, intensive herbicide application (from 2 to 5 application during 8-year rotation period) was needed to manage E. repens satisfactorily. E. repens was substantially higher in crops following two crops period of sunflower and spring barley crops, but lower in crops following winter oilseed rape.",
publisher = "Friends Science Publ, Faisalabad",
journal = "International Journal of Agriculture & Biology",
title = "Temporal Changes of Elytrigia repens Density in Intensive Cereal-Based Cropping Systems",
pages = "200-195",
number = "2",
volume = "24",
doi = "10.17957/IJAB/15.1423"
}

Macak, M., Đalović, I., Smatana, J., Roharikova, A. K., Saulić, M.,& Kulina, M.. (2020). Temporal Changes of Elytrigia repens Density in Intensive Cereal-Based Cropping Systems. in International Journal of Agriculture & Biology
Friends Science Publ, Faisalabad., 24(2), 195-200.
https://doi.org/10.17957/IJAB/15.1423

Macak M, Đalović I, Smatana J, Roharikova AK, Saulić M, Kulina M. Temporal Changes of Elytrigia repens Density in Intensive Cereal-Based Cropping Systems. in International Journal of Agriculture & Biology. 2020;24(2):195-200.
doi:10.17957/IJAB/15.1423 .

Macak, Milan, Đalović, Ivica, Smatana, Josef, Roharikova, Adriana Kiss, Saulić, Markola, Kulina, Mirko, "Temporal Changes of Elytrigia repens Density in Intensive Cereal-Based Cropping Systems" in International Journal of Agriculture & Biology, 24, no. 2 (2020):195-200,
https://doi.org/10.17957/IJAB/15.1423 . .

TY  - JOUR
AU  - Kostić, Milan D.
AU  - Đalović, Ivica
AU  - Stamenković, Olivera S.
AU  - Mitrović, Petar
AU  - Adamović, Dušan
AU  - Kulina, Mirko
AU  - Veljković, Vlada B.
PY  - 2018
UR  - http://fiver.ifvcns.rs/handle/123456789/1796
AB  - The biodiesel production from white mustard (Sinapis alba L.) seed oil (WMSO) by transesterification with methanol over the quicklime powder was investigated in a batch stirred reactor. Two independent first-order models with respect to triacylglycerols (TAGs) or a more complex model that combined the changing mechanism and the first-order rate law with respect to TAGs and fatty acid methyl esters (FAMEs), respectively described successfully the kinetics of this transesterification reaction. Besides that, the response surface methodology coupled with a full factorial design with replication was applied to model and optimize esters content with methanol-to-WMSO molar ratio, catalyst amount and reaction time (X-1, X-2 and X-3, respectively). The analysis of variance indicated that all individual process factors, the interactions X-1-X-2 and X-2-X-3 and the quadratic term X2 2 influenced significantly FAME content at the 95% confidence level. According to the reduced quadratic model, complete conversion could be achieved with the catalyst loading of 9.8%-10% and the methanol-to-WMSO molar ratio in the range between 6.1:1 and 11.6:1 in 50 min. WMSO was transesterified even faster than sunflower oil in the presence of both quicklime and KOH, due to higher total content of unsaturated fatty acids.
PB  - Elsevier Sci Ltd, Oxford
T2  - Fuel
T1  - Kinetic modeling and optimization of biodiesel production from white mustard (Sinapis alba L.) seed oil by quicklime-catalyzed transesterification
EP  - 139
SP  - 125
VL  - 223
DO  - 10.1016/j.fuel.2018.03.023
ER  - 

@article{
author = "Kostić, Milan D. and Đalović, Ivica and Stamenković, Olivera S. and Mitrović, Petar and Adamović, Dušan and Kulina, Mirko and Veljković, Vlada B.",
year = "2018",
abstract = "The biodiesel production from white mustard (Sinapis alba L.) seed oil (WMSO) by transesterification with methanol over the quicklime powder was investigated in a batch stirred reactor. Two independent first-order models with respect to triacylglycerols (TAGs) or a more complex model that combined the changing mechanism and the first-order rate law with respect to TAGs and fatty acid methyl esters (FAMEs), respectively described successfully the kinetics of this transesterification reaction. Besides that, the response surface methodology coupled with a full factorial design with replication was applied to model and optimize esters content with methanol-to-WMSO molar ratio, catalyst amount and reaction time (X-1, X-2 and X-3, respectively). The analysis of variance indicated that all individual process factors, the interactions X-1-X-2 and X-2-X-3 and the quadratic term X2 2 influenced significantly FAME content at the 95% confidence level. According to the reduced quadratic model, complete conversion could be achieved with the catalyst loading of 9.8%-10% and the methanol-to-WMSO molar ratio in the range between 6.1:1 and 11.6:1 in 50 min. WMSO was transesterified even faster than sunflower oil in the presence of both quicklime and KOH, due to higher total content of unsaturated fatty acids.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Fuel",
title = "Kinetic modeling and optimization of biodiesel production from white mustard (Sinapis alba L.) seed oil by quicklime-catalyzed transesterification",
pages = "139-125",
volume = "223",
doi = "10.1016/j.fuel.2018.03.023"
}

Kostić, M. D., Đalović, I., Stamenković, O. S., Mitrović, P., Adamović, D., Kulina, M.,& Veljković, V. B.. (2018). Kinetic modeling and optimization of biodiesel production from white mustard (Sinapis alba L.) seed oil by quicklime-catalyzed transesterification. in Fuel
Elsevier Sci Ltd, Oxford., 223, 125-139.
https://doi.org/10.1016/j.fuel.2018.03.023

Kostić MD, Đalović I, Stamenković OS, Mitrović P, Adamović D, Kulina M, Veljković VB. Kinetic modeling and optimization of biodiesel production from white mustard (Sinapis alba L.) seed oil by quicklime-catalyzed transesterification. in Fuel. 2018;223:125-139.
doi:10.1016/j.fuel.2018.03.023 .

Kostić, Milan D., Đalović, Ivica, Stamenković, Olivera S., Mitrović, Petar, Adamović, Dušan, Kulina, Mirko, Veljković, Vlada B., "Kinetic modeling and optimization of biodiesel production from white mustard (Sinapis alba L.) seed oil by quicklime-catalyzed transesterification" in Fuel, 223 (2018):125-139,
https://doi.org/10.1016/j.fuel.2018.03.023 . .

TY  - JOUR
AU  - Macák, M.
AU  - Đalović, Ivica
AU  - Turan, Jan
AU  - Šeremešić, Srđan
AU  - Tyr, Stefan
AU  - Milošev, Dragiša
AU  - Kulina, Mirko
PY  - 2017
UR  - http://fiver.ifvcns.rs/handle/123456789/1718
AB  - Soil organic carbon plays an important role in a long-term agroecosystem productivity, in the global C cycle, maintaining a soil nutrient pool and improving its availability. The objective of this study is the assess the impacts of long–term cropping practices on SOC dynamics in Slovakia and Serbia. Soil C sequestration is a complex process that is influenced by many factors, such as agricultural practice, climatic and soil conditions. For the both location the initial SOC decline was followed with the C stabilization and possible increase where proper practices were used. More intensive crop management systems that maintained residue cover provided the greatest benefit towards increasing the quantity of mineralizable nutrients within the active fraction of soil organic carbon (SOC), as well as increasing C sequestration as SOC. Long–term field experiments have contributed significantly to our current knowledge of soil quality and have been used to study the influence of crop management, fertilizer application and tillage practices on SOC content.
PB  - Eesti Pollumajandusulikool
T2  - Agronomy Research
T1  - Soil organic carbon in long–term experiments: Comparative analysis in Slovakia and Serbia
EP  - 1982
IS  - 5
SP  - 1971
VL  - 15
DO  - 10.15159/AR.17.053
ER  - 

@article{
author = "Macák, M. and Đalović, Ivica and Turan, Jan and Šeremešić, Srđan and Tyr, Stefan and Milošev, Dragiša and Kulina, Mirko",
year = "2017",
abstract = "Soil organic carbon plays an important role in a long-term agroecosystem productivity, in the global C cycle, maintaining a soil nutrient pool and improving its availability. The objective of this study is the assess the impacts of long–term cropping practices on SOC dynamics in Slovakia and Serbia. Soil C sequestration is a complex process that is influenced by many factors, such as agricultural practice, climatic and soil conditions. For the both location the initial SOC decline was followed with the C stabilization and possible increase where proper practices were used. More intensive crop management systems that maintained residue cover provided the greatest benefit towards increasing the quantity of mineralizable nutrients within the active fraction of soil organic carbon (SOC), as well as increasing C sequestration as SOC. Long–term field experiments have contributed significantly to our current knowledge of soil quality and have been used to study the influence of crop management, fertilizer application and tillage practices on SOC content.",
publisher = "Eesti Pollumajandusulikool",
journal = "Agronomy Research",
title = "Soil organic carbon in long–term experiments: Comparative analysis in Slovakia and Serbia",
pages = "1982-1971",
number = "5",
volume = "15",
doi = "10.15159/AR.17.053"
}

Macák, M., Đalović, I., Turan, J., Šeremešić, S., Tyr, S., Milošev, D.,& Kulina, M.. (2017). Soil organic carbon in long–term experiments: Comparative analysis in Slovakia and Serbia. in Agronomy Research
Eesti Pollumajandusulikool., 15(5), 1971-1982.
https://doi.org/10.15159/AR.17.053

Macák M, Đalović I, Turan J, Šeremešić S, Tyr S, Milošev D, Kulina M. Soil organic carbon in long–term experiments: Comparative analysis in Slovakia and Serbia. in Agronomy Research. 2017;15(5):1971-1982.
doi:10.15159/AR.17.053 .

Macák, M., Đalović, Ivica, Turan, Jan, Šeremešić, Srđan, Tyr, Stefan, Milošev, Dragiša, Kulina, Mirko, "Soil organic carbon in long–term experiments: Comparative analysis in Slovakia and Serbia" in Agronomy Research, 15, no. 5 (2017):1971-1982,
https://doi.org/10.15159/AR.17.053 . .