• • • Pasture ecosystems of new legume varieties as affected by improved cultivation methods
Investigations took place in the Moscow region in 2015–2017. To improve early recommended methods for cultivation of legume-gramineous mixtures the experiment analyzed the performance of white clover “VIK 70” and “Lugovik”, red clover — “Tetraploidnyy VIK” and “Veteran”, bastard alfalfa — “Pastbishchnaya 88” and “Agniya”. Their seeds were inoculated by Rhizobium spp. on the background of Р60К150 on sod-podzolic soil. Proportion of legume component, grass productivity, forage quality, yield increase and nitrogen content in top mass were considered. Variety traits had the most significant influence on ecosystem productivity in combination with seed treatment by bacterial strains. Yields of white clover ecosystems increased by 2.4–2.7 times, red clover swards — by 2.3–2.4 times, bastard alfalfa mixtures — by 2.0–2.1 times, compared to gramineous grasses on the background of Р60К150 (4 t ha-1 of dry matter). Legume-gramineous fodder was rich in digestible protein (134–204 g/feed unit). Productivity of white clover mixtures reached 7.6–8.1 thousand feed units ha-1, red clover ecosystems — 8.1–8.5, bastard alfalfa swards — 6.4 thousand feed units ha-1. Legume species increased N content in top mass up to 130–201 kg ha-1 (control — 72 kg ha-1), replacing 166–231 kg ha-1 of nitrogen fertilizers.
Source: https://kormoproizvodstvo.ru/en/1-2019-2/, p. 7
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