%0 Conference Article %T Formation of productive phytocenoses of a long period of use with the improvement of degenerate grass stands %A Shipilov, I.A. %K pastures, hayfields, perennial grasses, improvement techniques, phytocenoses %J Multifunctional adaptive fodder production23 (71) %D 2025 %P 3 %I Federal Williams Research Center of Forage Production and Agroecology