YIELD AND GRAIN QUALITY OF SPRING WHEAT VARIETIES USING MINERAL FERTILIZERS BAR GUM AND BATR MAX IN THE CONDITIONS OF TATARSTAN REPUBLIC

The research was carried out in order to study the peculiarities of mineral fertilizers effect and concentrated organomineral complex liquid fertilizers on the yield and grain quality of spring soft wheat varieties Al Varis and Ulyanovsk 105. The work was carried out in 2021-2023 in the Pre-Kama zone of Tatarstan Republic. The soil of the experimental site is light gray forest, medium loamy. Agro-chemical indicators: the content of humus according to Tyurin was 1.9%, mobile phosphorus and potassium according to Kirsanov in the modification of TSINAO – 145 mg/kg and 127 mg/kg, respectively, soil acidity – 6.4 pH. The doses of mineral fertilizers were determined by the calculation and balance method for grain yield of 3 t/ha, which amounted to N106P27K41. In addition to mineral fertilizers, the effect of concentrated organomineral complex liquid fertilizers Batr Gum, Batr MaX produced by Service Agro was evaluated. The use of calculated doses of mineral fertilizers significantly increased the yield and quality of spring wheat grain in both varieties. The maximum yield of spring wheat grain in an average of three years was noted in the NPK variant for obtaining 3 t/ha of grain + Batr (0.5 l/t +1 l/ha + 1 l/ha) – 3.76 for the Al Varis variety and 3.20 t/ha for the Ulyanovsk 105 variety. The highest value of crude gluten in 2023 was obtained when applying mineral fertilizers and using Batr Gum, Batr MaX – 29.4% in the Al Varis variety. The highest increase in the yield of spring wheat of the Al Varis variety on average for 2021-2023 was with the use of min-eral fertilizers, Batr Gum and Batr MaX amounting to 1.63 t/ha.