TY JOUR TI STUDY OF ANNUAL GRASS MIXTURES IN THE CONDITIONS NORTHERN TERRITORIES OF THE ARKHANGELSK REGION KW forage crops KW narrow-leaved lupine KW spring rapeseed KW field pea KW annual herbage KW productivity KW crude protein KW metabolic energy JO Adaptive Fodder Production AU Shamanin, A.A. AU Korelina, V.A. AU Batakova, O.B. AU Noskov, A.N. PY 2023 IS 2023 PB Federal Williams Research Center of Forage Production and Agroecology