TY JOUR TI THE INFLUENCE OF PRE-SOWING TILLAGE ON THE YIELD OF SPRING WHEAT IN THE CONDITIONS OF THE VOLGA FOREST-STEPPE KW spring wheat (Triticum aestivum L.) KW harrowing KW cultivation KW agrophysical properties of soil KW productivity KW efficiency JO Vestnik of Kazan State Agrarian University AU Sabitov, M.M. PY 2022 IS 17 PB Kazan state agrarian University