Potoplyak O. Yield capacity and quality of spring barley grain depending on fertilizers and protection from deseases under conditions of the Western Forest Steppe

Object of study - the formation yield and grain quality of spring barley varieties depending on the dose of fertilizers, fungicides and trace elements on a dark gray podzolic soil lehkosuhlynkovomu. The aim of research was to assess the features of formation of a crop of spring barley depending on the biological potential of the studied varieties of mineral nutrition standards, chemical defense against diseases, foliar feeding crops. Methods: field - to determine the yield, biometric measurements and records; chemistry - the definition of quality indicators of grain; statistical - to assess the reliability of the experimental data and determine correlations, settlement and comparative - to establish economic and energy efficiency, competitiveness technology. The results of researches on the study of fertilizers and fungicides influence and foliar nutrition of macro and microelements on the growth , development structure and the level of yield capacity of spring barley grain are highlighted in the thesis. The influence of technological elements on physical and chemical indices of grain quality is carried out. The part of influence of studied factors on realization of biologic-genetic potential of intensive type is determined. Besides their economic and bioenergetics efficiency is defined. Obtained data of researches give the possibility to recommend for production the optimum system of fertilizers and effective (reliable) protection from deseases together with foliar nutrition of macro and microelements under conditions of the Western Forest-Steppe of Ukraine depending upon variety provides grain yield of spring barley at the level of 6,25-7,30 t/ha and protein content in grain - 8,96-10,15 c/ha. Implemented - farms Lviv region an area of 700 hectares. Sector - agriculture.