%0 Journal Article %T PHOTOSYNTHETIC ACTIVITY OF MIXED SEEDING OF GRASSES, THEIR PRODUCTIVITY AND INFLUENCE ON FERTILITY OF SODDY-PODZOLYC SOIL IN THE CONDITIONS OF THE UPPER VOLGA %A Esedullaev, S.T. %K perennial grasses, mixed crops, leaf area, photosynthetic potential, leaf surface index, weight of roots and aerial parts, productivity, fertility %J Adaptive Fodder Production %D 2021 %N 2021 %P 12 %I Federal Williams Research Center of Forage Production and Agroecology