TY CONF TI Formation of productive phytocenoses of a long period of use with the improvement of degenerate grass stands KW pastures KW hayfields KW perennial grasses KW improvement techniques KW phytocenoses JO Multifunctional adaptive fodder production23 (71) AU Shipilov, I.A. PY 2025 PB Federal Williams Research Center of Forage Production and Agroecology