%0 Journal Article %T CHEMICAL COMPOSITION OF FEEDS DEPENDING ON BASIC SOIL TILLAGE METHODS AND NUTRITION BACKGROUND %A Medvedev, V.V. %A Fomin, V.N. %A Nafikov, M.M. %A Nigmatzyanov, A.R. %K fertilizers, tillage, chernozem, soil properties, anhydrous ammonia. %J Vestnik of Kazan State Agrarian University %D 2020 %N 15 %P 5 %I Kazan state agrarian University