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vol. 10, nr. 2 (2007)
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Winter wheat weed infestation under conditions of various tillage systems
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Dorota Gawęda
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Department of Soil and Plant Cultivation, Agricultural University, ul. Akademicka 13, 20-950 Lublin |
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vol. 10 (2007), nr. 2,
pp. 317-325
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abstract:
The paper deals with studies on the influence of various tillage systems and depth on winter wheat weed infestation. The experiment, carried out in 2001-2003, included three-field crop rotation system: potato – winter wheat – soybean. In no-plough system, ploughing was omitted and replaced by rearing and additionally using a set consisting of spring-tine harrow and cage roller. Depending on tillage system, ploughing or harrowing to a various depths was made. The three-year studies revealed that no-plough tillage significantly increased number and air-dried weight of weeds in winter wheat canopy as compared to ploughed objects. Air-dried weed weight was also significantly higher at deep vs. shallow tillage. Replacement of ploughing with harrowing caused apparent increase of two dominating short-term species population: Echinochloa crus-galli and Viola arven-sis. More shallow tillage resulted in a decrease of a majority of weed populations dominating in winter wheat canopy.
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keywords:
plough system, plough-less system, deep ploughing, shallow ploughing, winter wheat infestation
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original in:
Polish
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