Yields of legume-cereal grass in pasture use depending on the species composition under the Vologda region conditions

The article presents the results of the four years research (2012-2015) on yield capacity, nutritional value and botanical composition of grassland phytocenoses. The most productive is recognized as a four legume-cereal grass mixture on the basis of Carmine red clover and eastern goat's-rue Krivich in combination with the fescue and timothy grass. Mixture is characterized by a high proportion of legumes (40.9%), enhanced yielding from 1 ha fodder units (2851), digestible protein (400.6 kg / ha) and high nitrogen-fixing ability (69.7 kg / ha).