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Weed populations in maize as affected by crop rotation and primary soil tillage

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Authors
Demjanová, E.
Macák, M.
Tyr, Stefan
Đalović, Ivica
Žák, Š.
Smatana, Josef
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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 w...as 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.

Keywords:
Crop rotation / Diversity / Soil tillage / Weed density / Weed dry biomass
Source:
Journal of Plant Diseases & Proctection, Supplement, 2008, 21, 529-533

ISSN: 1861-4051

Scopus: 2-s2.0-42449107841
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1
Handle
https://hdl.handle.net/21.15107/rcub_fiver_651
URI
http://fiver.ifvcns.rs/handle/123456789/651
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  • Radovi istraživača / Researchers' papers
Institution/Community
FiVeR
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 .

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