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Mechanochemical Synthesis of Slow-Release Fertilizers through Incorporation of Alumina Composition into Potassium/Ammonium Phosphates

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Synthesis of potassium/ammonium phosphates and alumina composites through a mechanochemical approach is presented for the first time. -alumina and the phosphate are coground and the ground products are characterized by X-ray diffraction and infrared spectroscopy. Quantitative evaluation of the remaining soluble part of the prepared amorphous phase at a low percentage around 10% demonstrates a potential use of the ground samples as slow-release fertilizers.

Document Type: Research Article


Affiliations: 1Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan

Publication date: 2009-12-01

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