EFFECT OF MINERAL FERTILIZERS ON PROTEIN AND STARCH YIELD FROM OARS GRAIN BASED ON THE NUMBER OF IRRIGATION IN GRAY-BROWN SOILS.

The paper is devoted to study of the effect of mineral fertilizers on the yield of protein and starch from oats grain against the background of the number of irrigations in the irrigated gray-brown soils of Ganja-Dashkasan economic region (Azerbaijan). The main purpose of the research is to determine the number of irrigations and effective mineral fertilizer norms that affect the productivity of the autumn oats plant, the quality of the crop and the improvement of soil fertility in the irrigated gray-brown (chestnut) soils of the western region. It was determined that the number of irrigations and mineral fertilizer rates significantly increased the yield of protein and starch from oats corn compared to the control-no-fertilizer option. Due to the effect of mineral fertilizers on the background of 2 times vegetation irrigation, the yield of protein from the grain crop increased by 120.86-244.98 kg/ha, and the yield of starch by 393.63-855.09 kg/ha compared to the control-no-fertilizer variant. The highest indicators were obtained in the N₉₀P₉₀K₆₀ variant. In the case of 3 times irrigation due to the effect of mineral fertilizers, the yield of protein from the grain product increased by 121.50-285.06 kg/ha, and the yield of starch by 407.88-994.90 kg/ha compared to the control-no-fertilizer option. The highest protein and starch yield was observed in the N₁₂₀P₁₂₀K₉₀ variant against the background of 3 times vegetation irrigation. In terms of the number of irrigations, protein and starch yields in 3 times irrigation were higher than in 2 times irrigation in each of the variants. [ABSTRACT FROM AUTHOR]