ECONOMIC INDICATORS OF BIOLOGICAL SYSTEMS FOR PROTECTING SUNFLOWERS FROM BASKET ROT UNDER SOIL AND CLIMATIC CONDITIONS OF THE REPUBLIC OF TATARSTAN

In order to increase the economic efficiency of oilseeds production in the soil and climatic conditions of the Republic of Tatarstan in 2020-2022 a comparative assessment of the chemical and biological system of sunflower protection from basket rot was carried out. The scheme of the experiment included the following options: background nutrition (factor A) - without fertilizers (control), N104P50K106 (for a planned yield of 2.5 t/ha), partial replacement of mineral fertilizers with a biopreparation Biostim oil (N52P25K53 + foliar top dressing Biostim oil 3 l/ha in the budding phase); protection system (factor B) - seed treatment with chemicals Imidor Pro, KS, 15 l/t + Scarlet, ME, 0.4 l/t (control); treatment of seeds with biological preparations (Nodix Insectobact, 2 l/t + Nodix Biofungicide, 0.5 l/t); spraying crops in the phase of sunflower budding with chemical plant protection products (Mystery, ME, 2 l/ha + Karate Zeon, 0.15 l/ha); spraying crops with biological preparations (Nodix Insectobact, 2 l/ha + Nodix Biofungicide, 0.5 l/ha). The biological system for protecting sunflower from basket rot and replacing part of the mineral fertilizers with the biopreparation Biostim oil had high efficiency: treatment of crops with Nodix Biofungicide, 0.5 l/ha in combination with Nodix Insectobact, 2 l/ha against the background of N52P25K53 + Biostim oil, 3 l/ha ha, on average, ensured the collection of 2.31 t/ha of sunflower oilseeds. Spraying of crops with biological preparations from basket rot in combination with foliar top dressing with a fertilizer-stimulating composition Biostim oilseed made it possible to obtain 22.5 thousand rubles/ha of net profit, the profitability was 53.6%, the cost of production of 1 ton of oilseeds was 18.3 thousand rubles. rub. at a selling price of grown products of 28 thousand rubles.