INFLUENCE OF IMPROVED TECHNOLOGIES FOR THE CREATION AND USE OF LEGUME-CEREAL GRASS STANDS ON THE YIELD AND FERTILITY OF SOD-PODZOLIC SOIL OF MEADOW HAYFIELDS

To solve the problems posed in Doctrine to ensure food security of population Russia (2020), it is important increase productivity and quality voluminous fodder on meadow hayfields. In Federal Scientific Center "VIK named after V.R. Williams", improved technologies have been developed for creation use legume-grass stands (with participation four legume species) using presowing inoculation seeds with complementary strains nodule bacteria, as well an agricultural technique — changing predecessor during overplanting (in order eliminate phenomenon soil fatigue). Articles published recent years (2008, 2020, 2021, 2023) show high efficiency these Promising make possible obtain 5.8–6.2 thousand feed units/ha hay a content metabolic energy 9.13–9.65 MJ per 1 kg dry matter availability digestible protein unit 118–164 g. The payback capital investments 1–1.5 years, cost 26–30% lower than prevailing prices oats. For first time article, materials are presented impact change fertility soddy-podzolic soils Non-Chernozem zone.