%0 Journal Article %T The qualitative composition of the humus of chernozem leached in crop rotations of the northern forest-steppe of the Southern Urals %A Shatalina, L.P. %A Anisimov, Y.B. %A Kalyuzhina, E.L. %K leached chernozem, humus, fulvic acid carbon, humic acid carbon, mineral fertilizers, crop rotation %J Agrarian Bulletin of the %D 2022 %N 224 %P 13 %I Ural State Agrarian University