Plant and Soil Science

 Сhanges in the winter wheat growing technology could cause the weed-infested of crops and reduce crop yields. In view of the trend of minimizing the use of herbicides, it is useful to look for all influence factors of the cultivated plants' contamination and consider them. So research has shown the weedinfested of winter wheat depends on the farming systems in the Right-bank Foreststeppe of Ukraine. The ecological model of agriculture is average of the industrial and biological systems in the formation of a long-term type of weed-infested - 3-7 %, respectively. Among the means to systems of basic soil cultivation, the periodical moldboard tillage was the most effective for weed control. We found that the ecological system of agriculture has caused a threefold increase weed in crops, and the biological - in 5-7 times. The biological system demonstrated decrease yield of winter wheat by 27 % compared to the industrial one (4.9 t/ha). When used the ecological system, the yield was 6.7 t/ha, which is near the reference level. Therefore, the industrial model of agriculture proved to be the best in terms of decreasing the weeds.

weeds, winter wheat, predecessor, crop rotation, farming system