Abstract
In modern conditions of agricultural production, it is important to obtain a high yield of good quality, which may be limited by a high degree of contamination of crops. At the same time, it is necessary to search for new approaches to the weed control problem, which involves solving a number of issues: determining and analyzing the floral composition of weeds with constant monitoring of contamination to make forecasts and make operational decisions. This work is devoted to the study of these issues. It reveals the features of winter wheat agrophytocenosis formation with the analysis of weed species composition, and shows the effectiveness of the use of herbicides recommended on the basis of mapping. The biological efficiency of the spray mixture of herbicides Verdict + Dinat was 84.1% (by the number of weeds) and 94.9% (by air-dry weight). The agronomic effectiveness of herbicides was expressed in obtaining an increase in yield of 2.67 t/ha, and the profitability level was above the threshold of economic feasibility of the weed management and amounted to 141.8%.
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