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vol. 1, nr. 4 (2003)
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Influence of spring wheat sowing density and agrotechnical level on structure of weed infestation of the crop canopy
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Marian Wesołowski , Maria Dąbek-Gad, Agnieszka Stępień, Cezary Kwiatkowski
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Department of Soil Tillage and Plant Cultivation, University of Agriculture, Akademicka str. 13 20-950 Lublin |
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vol. 1 (2003), nr. 4,
pp. 779-785
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abstract:
Quantity-quality relationships of spring wheat canopy infestation by weeds in dependence on sowing density (300, 400 and 500 kernels m-2) and on two levels of agrotechnical measures were presented in the paper. The crop was cultivated on lessive soil developed from loess. Weeds were essentially limited by the increase of sowing density from 300 to 500 kernels per m-2 as well as by intensify of agrotechnical measures (increase of NPK, and use of herbicides, retardants, fungicides and insecticides). Galinsoga parviflora, Echinochloa crus-galli, Chenopodium album, Equisetum arvense and Cirsium arvense dominated in the crop canopy.
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keywords:
spring wheat, sowing density, agrotechnical level, canopy weed infestation
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original in:
Polish
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