TY JOUR TI SEEDS SOWING QUALITY DEPENDING ON SOWING TIME AND SOWING RATES IN THE NORTHERN FOREST-STEPPE OF THE TYUMEN REGION KW spring wheat KW variety KW sowing time KW seeding rate KW plant growth and development KW yield KW seed yield JO Bulletin of KSAU AU Kazak, A.A. AU Loginov, Y.P. AU Yaschenko, S.. PY 2022 IS 0 PB Krasnoyarsk State Agrarian University