The article presents the research experiment undertaken in 2017 in the experimental field of the North-Western Research Institute of Dairy and Grassland Farming, i.e. a separate division of the Federal State Budgetary Institution of Science Vologda Scientific Center of the Russian Academy of Sciences. The study has shown that the use of new species and varieties of grasses (Festulolium and domestic ryegrass) have positive results in creating pasture agrophytocenosis. It contributes in creating grass stands with a high content of cultivated grasses up to 89%, increasing yields by 1.5 times and obtaining highly nutritious pasture feed with a protein content up to 16 - 19.5%.