Influence of Mineral Nutrition, Microfertilizers and Bioproducts Levels on Water Consumption and Corn Productivity

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The article is devoted to the study of the influence of mineral nutrition, single-component and multi-component tank mixes on water consumption and yield of corn during silage cultivation in 2022-2024 in the Republic of Tatarstan. A two-factor experiment was conducted according to the following scheme: Factor A – nutrition background: 1. Without fertilizer application (control); 2. Calculated for the formation of corn silage mass of 35.0 t/ha. Factor B – Microfertilizers and bioproducts: 1. No treatment (control); 2. Batr; 3. Batr + Biodukx; 4. Batr + Organit R; 5. Batr + Organit N; 6. Batr + Organit P + Bioduks; 7. Batr + OrganitN + Bioduks; 8. Batr + Organit P + OrganitN; 9. Batr + Organit P + OrganitN + Bioduks. The object was the early-ripening corn hybrid ROSS-199 MV; plant growth regulator Bioduks, biopreparations Organit P, OrganitN, and microfertilizer Batr. The soil is gray forest. During the years of experiments, the soil contained: humus (according to Tyurin) - 3.4%, mobile phosphorus and exchangeable potassium (according to Kirsanov) - 154-159 mg/kg and 185-190 mg/kg of soil, alkaline-hydrolyzable nitrogen 70-78 mg/kg, pH salt. - 5.8. The experiment was replicated three times, with a total plot area of 84 m2 and a recording plot area of 70 m2. The study revealed an average increase in corn green forage yield over three years, from 25.2 to 30.8 t/ha (without fertilizer) and from 32.1 to 38.9 t/ha (based on 35 t/ha), when treating crops with a four-component tank mixture (Batr + OrganitR + Organit N + Biodux). Against a fertilized background, moisture savings with these tank mixtures amounted to 30.6 m3/t, or 5.8%. Fertilizer rates for 35 t/ha of green forage were calculated using the balance calculation method.