Internal physico-chemical transformations in mineral fertilizer granules under long-term storage

The study was conducted on the physico-chemical changes occurring within mineral fertilizer granules during long-term storage in the climatic conditions of Uzbekistan. It was found that, similar to Belarusian fertilizers, there is no significant concentration gradient of components within the granules, indicating stable production technology. X-ray phase analysis revealed the formation of double salts and urea adducts, accompanied by changes in mineralogical composition. Samples containing prilled urea exhibited lower caking tendency, which is particularly important in high humidity environments. The results can be used to optimize fertilizer storage in hot climates.

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