Tokarchuk M. Biological features of the goldenrod (Solidago canadensis L.) and scientific justification its effective system control in the right-bank forest-steppe of Ukraine

The thesis presents the results of the research study biology features Canadian goldenrod, its spread and harm. The results of studies on the impact of various abiotic factors on physical, chemical and biological indicators, as well as its potential infestation. In recent years, Canadian goldenrod debris lands has increased dramatically, as of 2016 all over Right-bank Forest Steppe of Ukraine was clogged about 1.51 thousand hectares. At the same time in 2014 this figure was at 1.26 thousand ha. Despite the fact that the proportion of Canadian goldenrod seeds compared with total reserves of seeds in the soil in most cases does not exceed 0,08-0,17% - stocks are growing every year - in the direction of accumulation. Established in crops of sugar beet by Canadian goldenrod thickness of 1-18 pcs./m2 weeds accumulated 0,07-1,10 t / ha of dry vegetative mass. With the presence of Canadian goldenrod at 8 and 16 pcs./m2, plants use the resources necessary for the formation of nitrogen 11,7-23,7 t / ha of sugar beet roots, in phosphorus - 4,9-9,9 t/ha and potassium according to 9,2-18,6 t/ha. According presence throughout the growing season in Canada goldenrod crops of sugar beet and winter wheat in an amount of 1-2 pc./m2 with the formation of their biomass at 96-174,0 g / m2 respectively decrease the yield of sugar beet roots 0.7-1.3 t/ha and wheat in winter 0,2-0,6 t/ha.