Comparative productivity and productive longevity of perennial grasses in Moscow region

Abstract

The studies were conducted on the experimental field of the All-Russian Research Institute of Phytopathology in 2016-2019 in two field experiments on sod-podzolic heavy loamy soils. The aim of the study was to identify the most promising perennial herbs for the organization of a green line in order to make more rational use of labor and technical resources. As the study showed that meadow alfalfa is superior in the first year, but from 2 years old, yellow-hybrid alfalfa comes out on top; timothy and especially fescue and wheatgrass reduced the yield. 2. On average, over 3 years, the highest yield of dry matter of feed units and metabolic energy in the harvest was provided by yellow hybrid alfalfa - 61 c/ha, 45 c/ha 58 gJ/ha and timothy grass, respectively 6 with an undoubted superiority of alfalfa in the yield of digestible protein - 8 against 2.96 c/ha of timothy grass. The disadvantage of alfalfa is the difficulty of seed production due to the long flowering period and cross-pollination, the seeds are formed in the lower part of the stem, and flowering continues.