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Research Article Open access CC BY 4.0

Development of Liquid Fertilizers and Solid Soil Ameliorants from Staged Oxidation of Licorice Meal

Orakbayev A, Namazov Sh, Usanbayev N, Alimov U, Atayev Kh, Rejepova M, Jumayeva O

Chemical Science International Journal · pp. 82–94 · Published 15 Dec 2025

10.9734/CSJI/2025/v34i61007

Abstract

The article presents the results of obtaining complex liquid fertilizers and organomineral meliorant by stepwise oxidation of licorice meal. The solution containing humic acids and fulvic acids, isolated after the first stage of oxidation, was used to obtain a liquid complex fertilizer after adding urea, ammonium sulfate, ammonium nitrate, purified and ammoniated Extraction phosphoric acid. Also, the dependence of the properties of liquid fertilizers - saturated vapor pressure, density, viscosity, and crystallization temperature on the composition was determined; by mixing the remaining licorice meal with quicklime after secondary oxidation, high-molecular-weight organomineral calcium humate-containing meliorants were obtained.

Meal hydrogen peroxide phosphorite extractive substances sulfuric acid oxidation humic acids fulvic acids phosphorus nitrogen calcium sulfur

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