• • • Cenotic activity of perennial grasses on drying pasture in the Non-Chernozem region
The research took place in 2012–2017 and analyzed cenotic characteristics of perennial grasses on draining soil. Swards of ryegrass (Loliurn perenne) and festulolium hybrid (× Festulolium F. Aschers. et Graebn.) performed as objects of study. The experiment tested two-, three- and four-component grass mixtures of various legumes and gramineous. Species and varieties of grasses were selected, considering their potential productivity and stable longevity on drying soil: ryegrass “VIK 66”, festulolium “VIK 90”, bastard alfalfa (Medicago varia) “Nakhodka”, birdʼs-foot trefoil (Lotus cornilatus) “Solnyshko”, white clover (Trifolium repens) “VIK 70”, red fescue (Festuca rubra) “Sigma”, red clover (Trifolium pratense) “VIK 7”, common timothy (Phleum pratense L.) “VIK 9”, meadow fescue (Festuca pratensis) “Sakharovskaya”. Red fescue, bastard alfalfa and birdʼs-foot trefoil showed high competitive ability. Introduction of additional legume species (bastard alfalfa “Nakhodka” and birdʼs-foot trefoil “Solnyshko”) increased green mass yield of grass mixtures. Green mass productivity of ryegrass mixtures improved by 0.77 t ha-1 or 4.2% while the festulolium ones — by 2,22 t ha-1 or 12.1%. Red fescue “Sigma”, bastard alfalfa “Nakhodka” and birdʼs-foot trefoil “Solnyshko”, being perennial species, grown on drained lands as grass mixtures have long-term stable productivity.
Source: http://kormoproizvodstvo.ru/en/5-2018-2/, p. 10
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