The influence of different doses and ratios of mineral fertilizers on the yield of winter rye in the Urals

Winter rye is an important crop of the Non-Chernozem belt Russia, productivity which depends on use fertilizers. The paper presents data agronomic and economic efficiency cultivating Falenskaya 4 winter under conditions long-term mineral studies were carried out in 2019-2021 Perm Region sod-podzolic heavy loamy soil a stationary experiment based reduced factorial design (6x6x6) with wide range doses NPK ratios. highest yield 2019 was obtained N30P120K120 variant (3.07 t/ha), payback fertilizers by grain noted N90 N30P30K30 variants (6.00 5.69 kg grain). 2021 for two years research average N90: 2021, 3.01 t/ha 13.96 grain, 2 – 2.95 9.82 grain. nitrogen has been proved regression equation average, phosphoric potash did not have significant effect. rise increase occurred up to dose 90 kg/ha amounted 0.42 at N90. among treatments N30 (7.3 grain), each 30 kg/ha, this indicator decreased linearly 1.3 kg. profitability over without fertilizers– 60 %, average. using higher compared control only 50 % versus 43 %. All studied used separately provided positive profitability, but most cost-effective N60 52 45 respectively.