%0 Journal Article %T FREE AND RELATED AMINO ACIDS IN THE SOILS OF FOREST-STEPPE OF VOLGA REGION AND ITS ROLE %A Murtazina, S.G. %A Gaffarova, L.G. %A Murtazin, M.G. %A Ahrarova, A.S. %K free amino acids, bound amino acids, amino acid composition of soils, easily hydrolyzable nitrogen, hard-hydrolyzable nitrogen, microelements, chelated micronutrient fertilizers, spring wheat %J Vestnik of Kazan State Agrarian University %D 2020 %N 14 %P 4 %I Kazan state agrarian University