Russian Federation
Russian Federation
Russian Federation
UDC 632.51
Weeds are wild plants growing on agricultural lands, causing a decrease in the level of agricultural culture, significant crop losses and deterioration in its quality. The purpose of the study is to assess the harmfulness, in particular, to determine the critical periods of the weed field component in vineyards in the conditions of the Terek-Kuma sands of the Chechen Republic. The location of the study is Shelkovsky district of the Chechen Republic; period: 2022-2023; object – table grape variety Augustine. During a survey of vineyards in the Chechen Republic, a mixed type of weed infestation with a predominance of annual weeds (58.5%) was established. The biomass of the weed component of the vineyards against the background of min weediness is 160.0 g/m2, max - 1632.0 g/m2. The air-dry mass of the weed field component increases 10.2 times against the background of a decrease in the mass of one weed plant specimen to 5.2 g, which is a clear confirmation of intraspecific competition. Against the backdrop of maximum weediness in the vineyards, yield losses reach 67.00%. The critical period for the harmfulness of weeds is the first 40-43 days from the beginning of the growing season. It is advisable to use the results obtained in the development of registers of weeds in vineyards and weed control measures.
weed component, harmfulness, yield, critical period of harmfulness, vineyards, crop losses, floristic composition
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