Purpose. To effectively use nutrients even from hard-to-reach soil compounds, it reduces the need to apply expensive synthetic fertilizers, characterized by low absorption coefficients (40-60%). Creates positive properties of soil microflora, as it optimizes the increase in the number of beneficial microorganisms in the rhizosphere of the sunflower root system.
Specifications. The technology involves the combined use of chelated microfertilizers of the Avangard R Sunflower type (double application in the phase of 3-4 and 6-8 leaves) with the pre-sowing application of Groundfix biofertilizers (8 l/ha) and seed treatment with the myoriza-forming preparation Mikofriend (4 l/t).
Application area. Agricultural enterprises of various forms of ownership, scientific institutions
Advantages. The developed model of sunflower cultivation technology allows, by optimizing plant nutrition by carrying out foliar fertilizing, to reduce the application of synthetic fertilizers by 25-30%, increases by 8-10%, due to the use of biological preparations and mycorrhiza-forming preparations, the coefficients of absorption of nutrients from the soil ensures an increase in yield by 15–38%. In addition, by improving the beneficial microflora, the quality of sunflower increases by increasing the content of fats and proteins in the seeds, and reduces pollution of the environment and products with heavy metals and residual amounts of synthetic substances.
Technical and economic effect. Formation of optimized architectonics of sunflower plants of the mid-early and mid-ripening groups with an increase in the assimilation surface area by 14-19%, an increase in total yield in the range of 26-38%
Description. Modeling the use of microbial and mycorrhiza-forming preparations, plant growth regulators and microfertilizers in the fertilization system when applied in different formats, containing a large number of microelements necessary for plants, which will enhance the processes of rhizosphere microflora, biochemical processes in plants and increase the availability of microelements of different origins for plants. The developed technological model for growing sunflower is based on the use of microfertilizers containing both macroelements: nitrogen (N), potassium (K2O) and sulfur (SO3), and microelements: boron (B), zinc (Zn), copper (Cu) . , manganese (Mn), iron (Fe), magnesium (MgO), cobalt (Co) and molybdenum (Mo) in the early stages of development from the phase of 3-4 to 6-8 leaves, in pre-sowing cultivation, biological fertilizers and for seed treatment. -forming drugs.