00626naa#a2200169#i#450# EN\URAL'SKIY GOSUDARSTVENNYY AGRARNYY UNIVERSITET\bibl\50747 20250401082651.2 1997-4868 20220529b2022####ek#y0engy0150####ca RU The effect of biological preparations on the indicators of biological activity of typical slightly eroded chernozem Journal article Ekaterinburg Ural State Agrarian University 2022 11 с. Journal article local Chuyan Nataliya Anatol'evna Breskina Galina Mihaylovna usau.editorum.ru