TY JOUR TI ENERGY-SAVING MOWING TECHNOLOGY OF LONG-TERM CEREAL GRASS STANDS WITH DIFFERENT RIPENING TIMES KW grass stands with different ripening times KW energy-saving technology KW three cuttings KW longevity KW quality of bulky forage KW collection of metabolic energy KW agro-energy efficiency KW natural factors JO Adaptive Fodder Production AU Zhezmer, N.V. PY 2022 IS 2021 PB Federal Williams Research Center of Forage Production and Agroecology