TY JOUR TI MEADOW-CHERNOZEM SOIL BIOLOGICAL ACTIVITY DEPENDING ON THE TILLAGE SYSTEM AND THE CHEMICALS USE KW microbiological activity KW chemicals KW tillage KW agrocenosis KW mineral fertilizers KW pesticides KW productivity KW wheat JO Bulletin of KSAU AU Shuliko, N.N. AU Hamova, O.F. AU Yushkevich, L.V. AU Korchagina, I.A. PY 2023 IS 0 PB Krasnoyarsk State Agrarian University