TY JOUR TI Agroenergy assessment of long-term multi-seasoned cereals agroecosystems KW agroecosystems KW cereal grass stands KW three cuts KW longevity KW gross energy KW anthropogenic costs KW natural factors JO Adaptive Fodder Production AU Zhezmer, N.V. PY 2026 IS 2026 PB Federal Williams Research Center of Forage Production and Agroecology