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Research Article Open access CC BY 4.0

Production of Soil Conditioners Based on Coal Oxidized with Hydrogen Peroxide, Bentonite, Phosphate Raw Materials, and Mineral Fertilizers

Akhmedova I.K., Namazov Sh.S., Usanbaev N.Kh., Kodir Raximov

Chemical Science International Journal · pp. 137–147 · Published 16 Oct 2025

10.9734/CSJI/2025/v34i5996

Abstract

The article presents the results of obtaining soil conditioners based on coal oxidized with hydrogen peroxide, containing a large amount of humic acids, crushed bentonite, phosphate raw materials, urea, ammonium sulfate, and potassium chloride in wide proportions. As a result of the interaction of humic acids in brown coal with phosphate raw material components and bentonite, an increase in the solubility of plant nutrients was observed. The optimal ratio of components and the degree of activation were determined for obtaining soil conditioners with an optimal amount of nutrients in a form that the plant can assimilate. In addition, the study assessed the influence of these air conditioners on the physicochemical properties of the soil, including pH, cation exchange capacity, water retention, and aggregate stability. The synergistic interaction of humic acids with mineral fertilizers improved the soil's nutrient supply.

Soil conditioner brown coal humic acids phosphorite bentonite urea ammonium sulfate potassium chloride

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