TY  - CONF
AU  - Macák, M.
AU  - Žák, Š.
AU  - Đalović, Ivica
AU  - Szombathová, N.
PY  - 2008
UR  - http://fiver.ifvcns.rs/handle/123456789/652
AB  - The field trial was carried out over the period 2000-2005 at the experimental station of the Research Institute of Plant Production in Western Slovakia. The purpose of the study was to investigate weed density and diversity and the ability of spring barley to compete in ecological and low input systems in a six years crop rotation system. The effects of farming systems on crop-weed competition were investigated by evaluating the yield and yield components of barley and weed density and diversity. Weed density and diversity were affected by the study year, systems and crop. The significantly higher weed density and diversity of 24.3 weed plants and 4.7 weed species per square meter was found in the ecological system in comparison to 7.8 weed plants and 2.4 weed species per square meter in the low input system. The weed competitiveness of spring barley with the under-sowing of clover significantly reduced weed density and diversity in both types of evaluated farming systems. The weed composition of the most troublesome perennial and annual weeds was determined for each of the six years of the study. Abundance of Polygonum aviculare L. and Cirsium arvense (L.) Scop., increased significantly in the ecological farming system in comparison to the low input system. The study considers the increased ability of spring barley to compete with weeds and the changes of the weed flora in ecological and low input systems.
C3  - Journal of Plant Diseases & Proctection, Supplement
T1  - The influence of an ecological and a low input system on weed density, weed diversity and weed competition in spring barley
EP  - 430
IS  - 21
SP  - 425
UR  - https://hdl.handle.net/21.15107/rcub_fiver_652
ER  - 

@conference{
author = "Macák, M. and Žák, Š. and Đalović, Ivica and Szombathová, N.",
year = "2008",
abstract = "The field trial was carried out over the period 2000-2005 at the experimental station of the Research Institute of Plant Production in Western Slovakia. The purpose of the study was to investigate weed density and diversity and the ability of spring barley to compete in ecological and low input systems in a six years crop rotation system. The effects of farming systems on crop-weed competition were investigated by evaluating the yield and yield components of barley and weed density and diversity. Weed density and diversity were affected by the study year, systems and crop. The significantly higher weed density and diversity of 24.3 weed plants and 4.7 weed species per square meter was found in the ecological system in comparison to 7.8 weed plants and 2.4 weed species per square meter in the low input system. The weed competitiveness of spring barley with the under-sowing of clover significantly reduced weed density and diversity in both types of evaluated farming systems. The weed composition of the most troublesome perennial and annual weeds was determined for each of the six years of the study. Abundance of Polygonum aviculare L. and Cirsium arvense (L.) Scop., increased significantly in the ecological farming system in comparison to the low input system. The study considers the increased ability of spring barley to compete with weeds and the changes of the weed flora in ecological and low input systems.",
journal = "Journal of Plant Diseases & Proctection, Supplement",
title = "The influence of an ecological and a low input system on weed density, weed diversity and weed competition in spring barley",
pages = "430-425",
number = "21",
url = "https://hdl.handle.net/21.15107/rcub_fiver_652"
}

Macák, M., Žák, Š., Đalović, I.,& Szombathová, N.. (2008). The influence of an ecological and a low input system on weed density, weed diversity and weed competition in spring barley. in Journal of Plant Diseases & Proctection, Supplement(21), 425-430.
https://hdl.handle.net/21.15107/rcub_fiver_652

Macák M, Žák Š, Đalović I, Szombathová N. The influence of an ecological and a low input system on weed density, weed diversity and weed competition in spring barley. in Journal of Plant Diseases & Proctection, Supplement. 2008;(21):425-430.
https://hdl.handle.net/21.15107/rcub_fiver_652 .

Macák, M., Žák, Š., Đalović, Ivica, Szombathová, N., "The influence of an ecological and a low input system on weed density, weed diversity and weed competition in spring barley" in Journal of Plant Diseases & Proctection, Supplement, no. 21 (2008):425-430,
https://hdl.handle.net/21.15107/rcub_fiver_652 .

TY  - CONF
AU  - Demjanová, E.
AU  - Macák, M.
AU  - Tyr, Stefan
AU  - Đalović, Ivica
AU  - Žák, Š.
AU  - Smatana, Josef
PY  - 2008
UR  - http://fiver.ifvcns.rs/handle/123456789/651
AB  - A seven year field study was conducted in south-western Slovakia to investigate the effects of different soil tillage intensities and crop rotation patterns on weed density, weed species composition and diversity, and weed competition in maize. Maize was grown in four different crop rotations with three different soil tillage systems (conventional ploughing, 0.3 m depth; offset disc ploughing, 0.15 m depth; shallow loosening, 0.1 m depth). Dominant weed species were Amaranthus retroflexus L., Chenopodium album L., Echinochloa crus-galli (L.) P.Beauv., Convolvulus arvensis L. and Cirsium arvense (L.) Scop. Conventional tillage reduced weed density significantly, primarily through the reduction of perennial weeds. Significantly lower weed dry biomass was observed under conventional ploughing than under reduced tillage by offset disc ploughing or shallow loosening. Crop rotation did not have a significant influence on species richness as indicated by the Margalef's index. However, there was significantly higher total weed density in continuous maize cropping (38.5 plants m-2) than when maize was grown in rotation with spring barley (28.6 plants m-2) or in rotation with peas and winter wheat (25.8 plants m-2). Primary tillage systems had a more significant effect on the composition of the weed flora, weed density and diversity, and weed biomass than did crop rotation patterns.
C3  - Journal of Plant Diseases & Proctection, Supplement
T1  - Weed populations in maize as affected by crop rotation and primary soil tillage
EP  - 533
IS  - 21
SP  - 529
UR  - https://hdl.handle.net/21.15107/rcub_fiver_651
ER  - 

@conference{
author = "Demjanová, E. and Macák, M. and Tyr, Stefan and Đalović, Ivica and Žák, Š. and Smatana, Josef",
year = "2008",
abstract = "A seven year field study was conducted in south-western Slovakia to investigate the effects of different soil tillage intensities and crop rotation patterns on weed density, weed species composition and diversity, and weed competition in maize. Maize was grown in four different crop rotations with three different soil tillage systems (conventional ploughing, 0.3 m depth; offset disc ploughing, 0.15 m depth; shallow loosening, 0.1 m depth). Dominant weed species were Amaranthus retroflexus L., Chenopodium album L., Echinochloa crus-galli (L.) P.Beauv., Convolvulus arvensis L. and Cirsium arvense (L.) Scop. Conventional tillage reduced weed density significantly, primarily through the reduction of perennial weeds. Significantly lower weed dry biomass was observed under conventional ploughing than under reduced tillage by offset disc ploughing or shallow loosening. Crop rotation did not have a significant influence on species richness as indicated by the Margalef's index. However, there was significantly higher total weed density in continuous maize cropping (38.5 plants m-2) than when maize was grown in rotation with spring barley (28.6 plants m-2) or in rotation with peas and winter wheat (25.8 plants m-2). Primary tillage systems had a more significant effect on the composition of the weed flora, weed density and diversity, and weed biomass than did crop rotation patterns.",
journal = "Journal of Plant Diseases & Proctection, Supplement",
title = "Weed populations in maize as affected by crop rotation and primary soil tillage",
pages = "533-529",
number = "21",
url = "https://hdl.handle.net/21.15107/rcub_fiver_651"
}

Demjanová, E., Macák, M., Tyr, S., Đalović, I., Žák, Š.,& Smatana, J.. (2008). Weed populations in maize as affected by crop rotation and primary soil tillage. in Journal of Plant Diseases & Proctection, Supplement(21), 529-533.
https://hdl.handle.net/21.15107/rcub_fiver_651

Demjanová E, Macák M, Tyr S, Đalović I, Žák Š, Smatana J. Weed populations in maize as affected by crop rotation and primary soil tillage. in Journal of Plant Diseases & Proctection, Supplement. 2008;(21):529-533.
https://hdl.handle.net/21.15107/rcub_fiver_651 .

Demjanová, E., Macák, M., Tyr, Stefan, Đalović, Ivica, Žák, Š., Smatana, Josef, "Weed populations in maize as affected by crop rotation and primary soil tillage" in Journal of Plant Diseases & Proctection, Supplement, no. 21 (2008):529-533,
https://hdl.handle.net/21.15107/rcub_fiver_651 .