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Information × Registration Number 0219U001156, 0116U003255 , R & D reports Title To investigate the biological and ecological features of formation weeds communities and improve the system of integrated management of crop rotations in Right-Bank Forest Steppe of Ukraine popup.stage_title Head Zadorozhnyi Viktor Serhiyovych, Registration Date 16-01-2019 Organization Institute of feed research and agriculture of Рodillya popup.description2 The processes of formation of weed species composition and the number composition of weeds in short crop rotation and agrocenoses of maize and soybean were investigated. Ecologically safe models of integrated systems for weed control in crop rotations and in some fodder crops were theoretical substantiated, developed and implemented. The quantitative and weight method was used to determine the level of weed attack and species composition of weeds in crops, the effectiveness of weed control methods, visual method -selectivity of herbicides to plants and signs of damage and weed destruction, weight method - moisture content and yields of the grown crops, laboratory and chemical method - content of the essential nutrients in products, mathematical and statistical method - reliability of changes in the studied parameters, as well as the economic efficiency of production, comparative and calculation method - economic efficiency of the cultivation technologies. It was established that the formation of weed vegetation in maize and soybean under all soil tillage methods (polished, unpolished, no-till technology) occurred mainly in the first 30 days after sowing of crops (78-84%). Among the weeds, Echinochloa crus-galli and Chenopodium album prevailed (84-86% of the total number). Product Description popup.authors Карасевич Володимир Володимирович popup.nrat_date 2020-04-02 Close