Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-28T20:34:13.837Z Has data issue: false hasContentIssue false
  • English
  • Français

A mechanism of phosphate adsorption on Narrabri medium clay loam soil

Published online by Cambridge University Press:  27 March 2009

H. S. Hundal
H. S. Hundal
Affiliation:
Department of Soils, Punjab Agricultural University, Ludhiana, Punjab-141004, India
Get access Rights & Permissions [Opens in a new window]

Summary

Phosphate adsorption on Narrabri medium clay loam soil followed a four-region Langmuir isotherm equation, i.e. the plot showed four distinct linear portions. These four regions corresponded closely to saturation with respect to hydroxyapatite, β-tricalcium phosphate, octacalcium phosphate and dicalcium phosphate dihydrate, shown by a calcium phosphate solubility diagram. The differential isosteric heat of adsorption, AH, of P adsorption on soil between 4 and 22 °C, plotted against phosphate sorbed, revealed discontinuities corresponding to the breaks in slope found on the Langmuir plot.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 111 , Issue 1 , August 1988 , pp. 155 - 158
Copyright
Copyright © Cambridge University Press 1988

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Clark, J. S. & Turner, R. C. (1955). Reaction between calcium carbonate and orthophosphate solutions. Canadian Journal of Chemistry 33, 665–671.CrossRefGoogle Scholar
Cole, C. V., Olsen, S. R. & Scott, C. O. (1953). The nature of phosphate sorption by calcium carbonate. Soil Science Society of America Proceedings 17, 352–356.CrossRefGoogle Scholar
Corrin, M. L. & Nelson, J. A. (1968). Energetics of the adsorption of water vapour on pure silver iodide. Journal of Physical Chemistry 73, 643–645.CrossRefGoogle Scholar
Davies, C. W. (1962). Ion Association. London: Butterworths.Google Scholar
Fogg, D. N. & Wilkinson, N. T. (1958). The colorimetric determination of phosphorus. Analyst 83, 406–414.CrossRefGoogle Scholar
Griffin, R. A. & Jurinak, J. J. (1973). The interaction of phosphate with calcite. Soil Science Society of America Journal 37, 847–850.CrossRefGoogle Scholar
Gunary, D. (1970). A new adsorption isotherm for phosphate in soil. Journal of Soil Science 21, 72–77.CrossRefGoogle Scholar
Hingston, F. J., Atkinson, R. J., Posner, A. M. & Quirk, J. P. (1957). Specific adsorption of anions on goethite. Transactions of the 9th International Congress of Soil Science, Adelaide, Australia 1, 669–678.Google Scholar
Hsu, P. H. & Rennie, D. A. (1962). Reaction of phosphate in aluminium systems. I. Adsorption of phosphate by X-ray amorphous aluminium hydroxide. Canadian Journal of Soil Science 42, 197–209.CrossRefGoogle Scholar
Langmuir, I. (1918). The adsorption of gases on plane surfaces of glass, mica, and platinum. Journal of the American Chemical Society 40, 1361–1403.CrossRefGoogle Scholar
Lindsay, W. L. (1979). Chemical Equilibria in Soils. New York: Wiley International.Google Scholar
Muljadi, D., Posner, A. M. & Quirk, J. P. (1966). The mechanism of phosphate adsorption by kaolinite, gibbsite and pseudoboehmite. Journal of Soil Science 17, 212–247.CrossRefGoogle Scholar
Olsen, S. R. & Watanabe, F. S. (1957). A method to determine a phosphorus adsorption maximum of soils as measured by the Langmuir isotherm. Soil Science Society of America Proceedings 21, 144–149.CrossRefGoogle Scholar
Shapiro, R. E. & Fried, M. (1959). Relative release and retentiveness of soil phosphates. Soil Science Society of America Proceedings 23, 195–198.CrossRefGoogle Scholar
Syers, J. K., Browman, M. G., Smillie, G. W. & Corey, R. B. (1973). Phosphate sorption by soils evaluated by the Langmuir adsorption equation. Soil Science Society of America Proceedings 37, 358–363.CrossRefGoogle Scholar
Taylor, R. W. & Ellis, B. G. (1978). A mechanism of phosphate adsorption on soil and anion exchange resin surfaces. Soil Science Society of America Journal 42, 432–436.CrossRefGoogle Scholar
Tcheurekdjian, M., Zettlemoyer, A. C. & Chessick, J. J. (1964). The adsorption of water vapour onto silver iodide. Journal of Physical Chemistry 68, 773–777.CrossRefGoogle Scholar