Summary
‘Equilibrium phosphate potential values’ in twelve soils were found to correlate significantly with the clay content. No correlation was observed with the organic carbon or with total phosphorus of the soils. The results indicated ‘phosphate potential’ to be a better method for available phosphate measurement than the conventional methods in the case of soils not grouped on the basis of their clays.
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References
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Sen Gupta, M.B. A study on the soil phosphate potential. Plant Soil 26, 199–201 (1967). https://doi.org/10.1007/BF01978686
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DOI: https://doi.org/10.1007/BF01978686