Feed productivity of Lucerne-cereal agrocenoses with various cereal components

Goal. To select the best perennial grasses for lucerne-cereal mixtures on different agricultural backgrounds to increase their productive longevity produce high-quality grass fodder. Methods. Field, laboratory, mathematical and statistical, computational comparative. Results. The results are given of research (2019–2021) in formation forage productivity lucerne, with various cereal components agro phytocoenoses fertilizers liming dark gray podzolic soils. phytocoenoses, change under influence liming, distribution yield hay crops features at a crop biomass 1st slope established. Conclusions. inclusion lucerne legume-cereal mixture, as well its single-use purposes, compared cereals herbage background without mineral nitrogen average first three years life use increased sown from 3.24–3.31 7,92–10.34 t/ha dry weight, 2.37–2.58 6.91–9.99 fodder units, or 1.4–3.8 times. most were formed based single-species sowing late-ripening meadow timothy (Phleum pratense) intermediate wheatgrass (Thinopyrum intermedium), medium-ripe awnless brome (Bromopsis inermis) eastern fescue (Festuca orientalis), where share legume component (1%) was largest. introduction 1.5 lime into pre-sowing cultivation P45K90 annually by 5–9%, combined — 12–14%. slopes fertilizer characterized 45–50%, 2nd 29–31%, 3rd 20–25%, unevenness 23–28%. At crop, grasslands occurred before flowering phase dominant components, largest daily increases weight (66–96 kg/ha), net photosynthesis (2.58–3.52 g/m2 per day) achieved during branching-budding lucerne.