Abstract
Bouldin and Sample1 considered that the dissolution of dicalcium phosphate in soil was a diffusion-controlled process, and consequently the rate of dissolution would depend on the surface area of the particular sample. Since diffusion is a slow process, granules of dicalcium phosphate may remain in soil for a considerable period after application. Thus these workers observed on numerous occasions that granules of dicalcium phosphate did not dissolve completely after 3–6 months in cropped soil.
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References
Bouldin, D. E., and Sample, E. C., Soil Sci. Soc. Amer. Proc., 23, 276 (1959).
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LARSEN, S., GUNARY, D. & DEVINE, J. Stability of Granular Dicalcium Phosphate Dihydrate in Soil. Nature 204, 1114 (1964). https://doi.org/10.1038/2041114a0
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DOI: https://doi.org/10.1038/2041114a0