Influence of After-Action of Green Cultures on the Productivity and Quality of Potato Tubers in Conditions of Yakutia

Abstract

As green cultures we used oat of the sort Pokrovskiy-9, of the first reproduction with the norm of sowing 150 kg/ha, pea and avenaceous mixture with the general norm of sowing of pea – 150 kg/ha, oat – 50 kg/ha at a 100% seed germination. The seed of pea were of sort Microspermous. Norm of sowing of seed of melilot made 10 kg/ga. The seed of melilot were of sort Nemyugyunskiy, superelite. We used seminal material of the districted sort of potato Yakutyanka. Mineral fertilizers and green cultures influenced positively on the productivity of tubers of potato, that for certain promotes the productivity to 2,7–3,0 ton/ha depending on the type of green culture. Meantime the green fertilizers in an after-action did not influence substantially on content of dry substances and starch in the tubers, and application of mineral fertilizers even reduced content of dry substances and starch.