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Asian Journal of Agricultural Research
  Year: 2010 | Volume: 4 | Issue: 4 | Page No.: 226-231
DOI: 10.3923/ajar.2010.226.231
 
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Determining of Soil Phosphorus Requirement with Application of Freundlich Adsorption Isotherm

A.A. Naseri, Y. Hoseini, H. Moazed, F. Abbasi and H.M.V. Samani

Abstract:
Phosphorus (p) adsorption characteristics of 5 soil samples were studied in soils of Southeastern Iran during 2009/2010 cropping season. Some soil properties as well as selected P-adoption characteristics were studied in these soils, Results show for this study Freundlich adsorption isotherm has good match with phosphorus adsorbed data and has good R-square. Freundlich sorption isotherms were used to evaluate the P requirement of 5 soils in a lab study. The soils were medium to heavy textured, acidic in reaction and were highly calcareous. Amount of P sorbed by the soils increased with increasing P in equilibrium solution. Quantities of P retained on sod solid phase were significantly correlated (p<0.05) with clay content of the soils. Maximum P was sorbed by a soil that had the maximum (64%) Clay content. there were negative relationship between P adsorption capacity and SOC and Ca content of soils.
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How to cite this article:

A.A. Naseri, Y. Hoseini, H. Moazed, F. Abbasi and H.M.V. Samani, 2010. Determining of Soil Phosphorus Requirement with Application of Freundlich Adsorption Isotherm. Asian Journal of Agricultural Research, 4: 226-231.

DOI: 10.3923/ajar.2010.226.231

URL: https://scialert.net/abstract/?doi=ajar.2010.226.231

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