TY CONF TI ECONOMIC EFFICIENCY OF LONG-TERM MULTI-CUT USE OF GRASS STAND WITH DIFFERENT RIPENING TIMES KW grass stands with different ripening times KW three mowing KW longevity KW productivity KW economic efficiency JO Multifunctional adaptive fodder production AU Zhezmer, N.V. PY 2024 PB Federal Williams Research Center of Forage Production and Agroecology