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vol. 8, nr. 3 (2006)
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Influence of cropping systems and care methods on weed biodiversity in spring wheat
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Aleksandra Głowacka
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Faculty of Agricultural Sciences in Zamość, Agricultural University in Lublin, ul. Szczebrzeska 102, 22-400 Zamość |
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vol. 8 (2006), nr. 3,
pp. 569-577
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abstract:
The field experiment was carried out in the years 2004-2005, on a farm located in Frankamionka village near Zamość. Experimental field was located on soil with silty dust grain composition, light acid, with average contents of organic matter. Varied cropping systems (monoculture, crop rotation, strip intercropping) and three levels of agrotechnical measures (mechanical, mechanical-chemical, chemical) were the experimental factors. Species composition, weed density and air dry mater weight were analysed two weeks prior to spring wheat harvest from two experimental surface in every plot. It was proved that weed infestation of spring wheat canopy depended on cropping systems and agrotechnical level. The highest number of weeds and air dry matter of weeds were in mechanical cultivation. Weed infestation of spring wheat canopy also dependend of cropping system. It was shown that the strip intercropping system caused a decrease of the numbers and weight of weeds, whereas cultivation of spring wheat after itself increased both of those indicators. Glainsoga parviflora, Echinochloa crus-galli and Amaranthus retroflexus were the dominant taxons.
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keywords:
spring wheat, strip intercropping, crop rotation, weed infestation
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original in:
Polish
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