TY JOUR TI CHANGES IN THE COMPOSITION OF PHYTOCENOSIS LONG-TERM HAYFIELDS DEPENDING ON APPLYING IMPROVEMENT METHODS KW haymaking KW yield KW grass composition KW fertilizers KW lime JO Adaptive Fodder Production AU Rodionova, A.V. AU Sedova, E.G. AU Teberdiev, D.M. PY 2023 IS 2023 PB Federal Williams Research Center of Forage Production and Agroecology