%0 Journal Article %T VARIABILITY OF CHEMICAL COMPOSITION OF HARVEST AND NORMATIVE REMOVAL OF NUTRITIONAL SUBSTANCES OF WINTER RHY UNDER THE IMPACT OF AGROCHEMICALS %A Gilyazov, M.. %A Yunusov, B.R. %K gray forest soil, winter rye, Extrasol biopreparation, mineral fertilizers, economic and normative removal of nutrients. %J Vestnik of Kazan State Agrarian University %D 2018 %N 12 %P 2 %I Kazan state agrarian University