Influence of composition and doses of organomineral fertilizer on crop productivity

The purpose of the research is to establish the effect of foliar and root treatments with organic fertilizers on crop productivity. Research objectives: to determine the types, forms and mass of mineral fertilizers for introduction into the supernatant solution (NOR), utilized in the production of a humic preparation from precipitated humic acids; to establish the effect of the composition and dose of organo-mineral fertilizers during foliar and root treatments on the productivity of crops. Field experiments were carried out in the fields of AO PZ Uchkhoz GAU Northern Trans-Urals, soil – leached chernozem. Foliar treatment of spring wheat with organomineral fertilizer of different composition in the phase of flowering and milk ripeness had a positive effect on the indicators of the structure of the yield. The weight of 1000 seeds when treated with a mixture of HOP with urea and double superphosphate significantly exceeded the other options. The yield and gluten content when using organic fertilizers exceeded the wet control by 0.5–0.9 t/ha (14–24 %) and 2.7–4.4 %, respectively, the difference between the compositions is not significant. On the basis of laboratory, vegetation and field studies, a method for obtaining organomineral fertilizers, incl. from a supernatant solution (agrochemical “Tyumen”, brand B). Root treatment with an agrochemical “Tyumen”, brand B planting winter garlic varieties Tien Shansky, Shadeyka and Nazus increased the diameter of the bulb by 8–20 %, the number of cloves in the bulb – by 6–9 %, the weight of the bulb – by 28–45 %, the yield by 14–33 %. The studied doses (0.3, 0.4, 0.5 l/ha) of the agrochemical “Tyumen”, brand B exceeded the control in all indicators of the yield structure, the difference between the doses is not significant. The maximum in-creases in yield and gluten content were obtained after root-root treatment with an agrochemical at a dose of 0.4 l/ha – 6.6 c/ha (22 %) and 11.3 %, respectively.