TY JOUR TI PRECURSORS INFLUENCE ON THE YIELD OF BARLEY VARIETIES SEEDS IN THE TYUMEN REGION NORTHERN FOREST-STEPPE KW barley KW variety KW predecessor KW seed yield JO Bulletin of KSAU AU Yakubyshina, L.I. AU Loginov, Y.P. PY 2022 IS 0 PB Krasnoyarsk State Agrarian University