FESTULOLIUM AGROCENOSIS FORMATION DEPENDING ON VARIETY CHARACTERISTICS AND SEED TREATMENT WITH MICRONUTRIENT FERTILIZERS AND BACTERIAL PREPARATIONS
Studies on increasing the productivity of festulolium varieties VIK-90 and Izumrudny were conducted in 2019-2021 on the experimental plot of Penza State Agrarian University. The effect of micro- and biofertilizers (Azosol-36, Extra, Megamix-Profi, Siliplant, Zircon, Agrika, Agrika+microelements, Agat-25 Super) during seed treatment on the formation of festulolium agrocenosis in the year of sowing as well as on the productivity and nutritive value of green mass in the first year of use was studied. As a result of studies it was found that the studied preparations had a positive effect on agrocenosis formation (increase of germinating capacity and safety), indices of plant development (increase of plant height, linear size, weight and root volume). The highest productivity of the agrocenosis (46.6 t/ha of green mass and 9.5 t/ha of dry matter), feed nutritive value (389.5 kg/ha of raw fat, 700.2 kg/ha of digestible protein and 111.2 GJ/ha of exchange energy) and energy content (11.71 MJ/kg of dry matter) were obtained after treatment of festulolium seeds of Izumrudny variety with Agrika + microelements.