Summary
A simple model is described, and experimentally tested, for predicting the rate of dissolution of rock phosphates in soil, including the effect of solubilization by plant roots. The sensitivity of the model to its input parameters is assessed and it is seen that plants may significantly increase their P uptake by acid secretion. The model provides a rational basis for the selection of P solubilizing crops and inter-crops.
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References
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Nye, P.H., Kirk, G.J.D. The mechanism of rock phosphate solubilization in the rhizosphere. Plant Soil 100, 127–134 (1987). https://doi.org/10.1007/BF02370936
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DOI: https://doi.org/10.1007/BF02370936