Self-renewing legume-grass stands on drained lands of the Central District of the Non-Chernozem Zone

Studies to study the adaptive responses of self-renewing legume-grass stands were carried out in 2018-2021 at agroecological station VNIIMZ (Tver region). The object research was pasture herbage with participation rhizomatous grasses: giant bentgrass variety VIK-2, meadow bluegrass Balin and red fescue Maxima, their productivity studied under conditions uneven precipitation. It revealed that most for growth, development formation herbs formed first second years use a hydrothermal coefficient 1.16 1.33, respectively. A high potential established grass fescue, which resistant conservation sown species introduction forbs. is shown showed reactions mineral fertilization. increase yield 2.3-6.5 t/ha green mass, 1.3-2.3 more than other stands. advantage terms productivity, both background fertilizers natural background, fescue. Meadow mixtures had lowest collection fodder - 19.9-22.5 mass. resulting feed content 18.3-22.1 % crude protein, 23.5-28.1 fiber dry matter concentration 9.91-10.9 MJ metabolizable energy per 1 kg quality. has been sustainable grassland farming changing climate on drained lands, it necessary grasses, provide opportunity complete habitat resources resistance agro-climatic stresses growing season, form level 3.94-5.02 3.2-4.2 thousand units place growth 4.7-6.1 t / ha weight 3.9-5.0 fertilizers.