Storozhyk L. Agrobiological background for the development of agrophytocenoses of bioenergy crop sugar sorghum in the Steppe and Forest-Steppe of Ukraine.

Object of research - the growth and development of plants and the formation of productive and quality sorghum sugar depending on the varietal characteristics, growing technology elements and weather conditions in Steppe and the Eastern Forest-Steppes of Ukraine. The goal was the theoretical and agrobiological substantiation of features of formation agrophytocenoses as bioenergy sorghum sugar culture in different soil and climatic zones of Ukraine. Methods - field; biomorphological; laboratory: chemistry, physics; statistics: dispersive, the variational, regression, cluster; comparative-calculated. In terms of the Steppe and Eastern Forest-Steppe of Ukraine revealed regularities of formation of highly agrophytocenoses sorghum sugar as bioenergy culture; theoretically and experimentally grounded the peculiarities of formation and implementation of performance agrophytocenoses sugar sorghum for sowing compatible with beet seed bearers; experimentally determined the optimal terms of sowing, methods of stimulate and norms of sowing seed, density stand of sorghum sugar plants for compatible and single-species sowing. Developed the technology of growing sorghum sugar, which in the conditions of the South and the North Eastern Steppe and Forest-Steppe of an opportunity to get to 80 t / ha biomass sorghum sugar juice with sugar content of 18% and yield of ethanol to 3.5 t / ha. Received six patents for utility model. The introduction of copyright works carried out in the production of agricultural formations of Crimea, Kirovograd, Sumy regions. Field of use - agricultural production.