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Information × Registration Number 0206U000256, 0102U002707 , R & D reports Title To develop zone systems of cultivation of ground in the projects of rational use of grounds rather resource saving, ecologically of safe landscape agriculture popup.stage_title Head Onychko Viktor Ivanovich, Registration Date 19-01-2006 Organization The Sumy inststute of agroindustrial produktion popup.description2 On the average for 2001-2005 of removal of weeds on a background within 10-70 days removal in 10-30 days after the account - 0, 42-0,18 t/h influenced preservation 0,13-0,55 t/h a grain yield, and; presence of weeds at crop of 40-70 days results in decrease of productivity. In conditions of 2005 studying of dynamics of occurrence of weeds in crop of a winter wheat has shown, that the most vulnerable period for culture from weeds - 30-35 days from the beginning of vegetation. The first wave of weeds was formed in the autumn, the second in the third decade of June. Application of herbicide grodil ultra influenced for destruction of wintering weeds and oppression of that appeared, therefore and their weight for the preharvest period was small. On the average for years of researches in crops of summer barley on variants with removal of weeds within 10-70 days it is marked, that those weeds which appeared after removal and different period, therefore and differed both quantity, and weight for the preharvestperiod. Dynamics of occurrence of weeds in crop of peas during vegetation depend on a phase of his development and receptions of removal of weeds. Density of standing of plants essentially influenced specific structure and an aggregate number of weeds in crop of peas. Product Description popup.authors popup.nrat_date 2020-04-02 Close