TY JOUR TI THE EFFECTIVENESS OF BIOFERTILIZERS AND GROWTH REGULATOR IN THE CULTIVATION OF SPRING WHEAT IN THE FOREST STEPPE KW spring wheat KW biological fertilizer KW growth regulator KW preparation KW grain JO Vestnik of Omsk SAU AU CHERNYAVSKAYA, M.A. AU POPOVA, V.I. AU KORMIN, V.P. AU BOBRENKO, I.A. PY 2025 IS 57 PB FSBEI HE Omsk SAU