SYNTHESIS OF A DOUBLE COMPOUND BASED ON DIMETHYLOL UREA AND PHYTOCOMPOUND OF MOLYBDENUM AND THE STUDY OF ITS INFLUENCE ON THE POPULATION OF SOME SOIL MICROORGANISMS AND ACCUMULATION OF NITROGEN
Keywords:dimethylolurea, molybdenum phyto compound, easily hydrolyzable nitrogen, active substance, isothermal method, crystallization, double compound, system
Introduction. Drillers used for agricultural crops, in particular cotton seeds, cannot provide additional nitrogen feeding in the required volume during a shortage of nitrogen fertilizers. This article sets the task of creating a new active substance based on the phyto compound dimethylolure and molybdenum, which allows you to reduce cotton diseases in cotton cultivation, increase the accumulation of light hydrolyzed nitrogen in the soil and obtain a high cotton yield. The purpose. Study of chemical interactions in a three-component aqueous-salt system of dimethylolure-molybdenum phyto-compound-water by isothermal method. Objects. DMM, FSMo, double compound DMM is the active reactant of FSMo. Results.The isothermal method at a temperature of 25°C found that in the concentration range of solutions of 12.2-9.8% DMM and 2.8-5.4% FSMo, DMM crystallizes in the system, at a concentration range of 5.7-2.1% DMM and 12.3-15.5% FSMo, FSMo crystallizes, and in the concentration range of 8.2 -6.4% DMM and 6.2-9.3% FSMo, the compound DMM•FSMo is separated from the solution into this phase.Conclusion. The chemical interaction in the water-salt system dimethylol urea (DMM) - molybdenum phytocompound (FSMo) - water was studied by isothermal methods of chemical analysis. The region of crystallization of a new double compound, an active substance based on DMM and FSMo, was established at a molar ratio of 4DMM•FSMo. On model soil samples, it was determined that the active substance - the double compound 4DMM•FSMo against the background of ammonium nitrate, in comparison with ammonium nitrate, increases the number of nitrogen-fixing bacteria by 3.0 and 3.2 times.