The study of the influence of biostimulators on productivity of alfalfa changeable

The aim of the work was to increase the yield of forage crops in arid conditions of the forest-steppe of the Middle Volga region. The results of studies for 2015-2017 on the evaluation of the effectiveness of the use of biostimulators Mival-agro, Lignohumate and their combinations on plants of alfalfa are presented. Has been used was created in "Povolzhsky NIISS", released alfalfa variety "Emerald's". In the field, the treated plants were evaluated by three indicators: the yield of green mass, plant height and foliage. Planting in 2015, all of the studied biopreparations influenced the growth processes and organogenesis. The most pronounced action of the influence of biostimulants viewed in arid 2016. The accumulation of forage in the first cut was significantly higher than control at 14-38% and the second at 12-18%. In atypical conditions for The middle Volga region in 2017 biopreparations influenced the height and foliage. On average, for 2015-2017, the studied biological products Mival-agro and Lignohumate provided an increase in the yield of green mass in the amount of 2 harvests by 13.8%. When processing a mixture of drugs was the largest excess over the control of 19.5%.