%0 Journal Article %T AGRO-ECOLOGICAL EVALUATION OF DIFFERENT FERTILIZATION SYSTEMS IN THE CONDITIONS OF THE REPUBLIC OF TATARSTAN. %A Zanilov, A.H. %A Adaev, A.N. %A Muuev, A.A. %K organic fertilizers, local application, soil biological activity. %J Vestnik of Kazan State Agrarian University %D 2018 %N 13 %P 5 %I Kazan state agrarian University