A STUDY OF THE THEORETICAL FOUNDATIONS FOR OBTAINING A STABLE FORMULATION OF A SUSPENDED FUNGICIDAL COMPOSITION AND ITS EFFECT ON THE YIELD OF COTTON, THE DEGREE OF CO2 RELEASE FROM THE SOIL (Part 2)

Abstract

Used seed disinfectants of agricultural crops, and in particular cotton, do not provide plants with additional nutrient nitrogen and obtain a high yield of raw cotton. In this work, the task is to create an active substance and, on its basis, a preparative form of a composition of a multifunctional action, which simultaneously allows reducing diseases of cotton plants, increasing the accumulation of easily hydrolysable nitrogen in the soil and obtaining a high yield of raw cotton. The purpose. Synthesis and study of the theoretical foundations for obtaining the active substance and the formulation of the composition for dressing cotton seeds based on methylol ureas and molybdenum phytocompounds. Results. The mechanism of influence medium of pH, temperature and storage time on the stability of the preparative form, which ensures high biological efficiency, is substantiated. The mechanism of the influence of the preparative form of a double compound based on monomethylol urea and molybdenum phytocompound on the yield of cotton and the greenhouse effect has been established. It was revealed that during the growing season the composition provides the accumulation in the soil of an additional content of easily hydrolysable nitrogen and mobile forms of phosphorus pentoxide, reduces the release of carbon dioxide into the gas phase and increases the yield of raw cotton. Conclusion. The optimal storage parameters of the composition were determined to ensure high biological efficiency: pH 6.5-7.5, temperature 20 °C and 35 °C, and storage time 3-6 months. A decrease in the release of carbon dioxide in the soil by 22 - 32 mg / m2 per hour and an increase in the yield of cotton by 20.58 % - 37.51 % were established.