Influence of diversified tillage systems on weed infestation in crop maize.

摘要

Agricultural simplification especially direct sowing led to phytocoenosis biodiversity impoverishment, considerable increase of predominant species as well as to appearance of perennial weeds in maize crops. Considering crop rotation and ploughing systems it was revealed a great biodiversity of perennial weed species. As a result of symplified tillage system the occurrence of Setaria viridis considerably increased as well as the perennial species Equisetum arvense appeared. A participation of dicotyledonous weeds in the structure of monoculture weed infestation decreased comparing to conventional tillage and rotation system. A great intensity of occurrence of annual monocotyledonous and perennial weeds (Artemisia vulgaris, Cirsium arvense, Equisetum arvense) was recorded.