Umrikhin N. Optimization of elements of technology of growing sugar beet under conditions in north Steppe of Ukraine.

The dissertation presents the results of the author's researches concerning growth, development, formation of individual productivity of hybrids of sugar beet depending on a level of mineral feeding and terms of harvesting and a technology of care of crops with use of herbicides and interrow loosenings. The researches which took place and generalization of their results let to recommend to industry the model of technology of growing of sugar beet in conditions of North steppe of Ukraine, which ensures a formation of yield capacity at the level of 40,0-45,0 t/ha with use of mineral fertilizers with norms accordingly N126P74K123 and N172P104K173. In the system of care of crops of sugar beet from weeds an optimal variant is combining of two interrow loosenings with insertion of Betanal Expert (0,75 l/ha) + Karibu (0,03 k/ha) + Trend-90 (0,2 l/ha) + Aramo (1,0 l/ha). Calculations of energetic and economic expediency of these technological practices are presented in the dissertation. The results of industrial checks of elements of technology are submitted.