CHEMICAL REACTIVITY OF PHOSPHATE ROCKS - A REVIEW

Article Id: ARCC4358 | Page : 121 - 126
Citation :- CHEMICAL REACTIVITY OF PHOSPHATE ROCKS - A REVIEW.Agricultural Reviews.2001.(22):121 - 126
R.K. Kaleeswari and S. Subramanian
Address : Department of Soil Science and Agricultural Chemistry, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai - 625 104, India

Abstract

Reactivity of phosphate rock determines its potential as a direct fertilizer. The effectiveness of phosphate rock relative to soluble P fertilizer will vary from source to source depending upon the mineralogy and chemistry of each rock as well as the influence of soil, crop, environment and management factors. Relative effectiveness is mainly used for comparison of two or more P sources. This review paper comprises chemical reactivity, dissolution of phosphate rocks and comparison of effectiveness of P sources.

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