TY CONF TI Cabbage crops in solving the problem feed protein in the Non-Chernozem zone KW feed KW variety KW cabbage crops KW protein KW oilcakes KW meal KW technologies JO Multifunctional adaptive fodder production AU Volovik, V.T. AU Shpakov, A.S. PY 2025 PB Federal Williams Research Center of Forage Production and Agroecology