The article studies the effect of mineral fertilizers on the yieldity of summer triticale varieties in condi-tions of sod-podzolic soils of the Republic of Mari El. The highest yield of grain of summer triticale was obtained from Rovnya variety. The yield of this variety during cultivation without fertilizer was 2,25 tons/hectare, and when using N30P30K30 it was 2,54 tons/hectare and 2,91 tons/hectare compared to using N60P60K60. The mineral fertilizers used in the experiment influenced the quality of the grain of summer triticale. The content of crude protein and natural grain weight increased with increasing dose of mineral fertilizers. The maximum carrying out of nitrogen of 85 kg/ha, phosphorus of 44 kg/ha and potassium of 88 kg/ha was at cultivation summer triticale of Rovnya variety with the use of N60P60K60. The NPK carrying out rates per 1 ton of grain de-pended both on the variety and on the use of mineral fertilizers. The smallest indicator values of carrying out were obtained at cultivation summer triticale on not fertilized soil. The indicators increased with the use of mineral fertilizers. When cultivating summer triticale of Rovnya variety with the use of N60P60K60, the carrying out rates were: nitrogen of 29,2 kg/t, phosphorus of 15,1 kg/t and potassium 30,2 kg/t. Speaking about Haikar variety, the indicators were following: nitrogen of 30,2 kg/t, phosphorus of 16,3 kg/t and potassium of 18,6 kg/t. Calculation of the use of nutrients from fertilizers showed that at a dose of application of N30P30K30, Rovnya variety absorbed 40,0 % of nitrogen, 13,3 % of phosphorus and 30,0 % of potassium. When cultivating Haykar variety, efficiency factors were 13,3 % of nitrogen, 13,3 % of phosphorus and 20% of potassium. When applying mineral fertilizers at a dose of N60P60K60, Rovnya used 71,7 % of nitrogen, 23,3 % of phos-phorus and 63,6 % of potassium. Haikar used 58,3 % of nitrogen, 20,0 % of phosphorus and 21,7 % of potassium.