APPLICATION OF MICRO FERTILIZERS AND GROWTH REGULATORS ON WINTER WHEAT CROPS

Recently, considerable attention has been paid to micro-fertilizers and plant growth regulators, which are used to obtain economically significant effects: optimizing and stimulating seed germination, activating vegetative plant growth, protecting plants from a number of diseases by enhancing the immune status of plants, and increasing crop yields. Field experiments were conducted in the production conditions of the steppe zone of the Mozdoksky district, in the scientific and production department of the Scientific Research Institute of Agricultural Sciences VNC RAS Oktyabrsky on chestnut carbonate soils. As a result of the use of micro fertilizers, a growth regulator and their tank mixture, the density of winter wheat plants increased. According to the Mers variant of brand B (Alekseich grade) in the autumn period, this indicator was higher than in the control (by 5.6%). The growth regulator Edagum CM increased the density of standing by 8.9%, and the tank mixture (Mers brand B + Edagum CM) – by 18.4%. The highest percentage of overwintered plants was observed for the Mers brand B variant (300 ml/ha) + Edagum CM (200 ml/ha) – 96.7%, while in the control – 86.3%. In the tube exit phase, the difference between the control and the Mers variant of grade B (300 ml/ha) + Edagum CM (200 ml/ha) was 2.1 thousand m2/ha, in the earing and milk ripeness phases – 2.58 and 4.18 thousand m2/ha, respectively. The studied options had a significant impact on the yield and quality indicators of winter wheat products. Productivity increased by 0.95-1.45 t/ha. With a maximum yield of 4.82 t/ha in the variant using a tank mixture on the Alekseich variety, the conditional net income was 21.87 thousand rubles/ha, with a production margin of 115.00%. In a similar variant with the Grom variety, the yield was 4.62 t/ha with a production margin of 105.60%.