Shailaja, S (1989) Phosphate adsorption-desorption in selected vertisols. Masters thesis, Andhra Pradesh Agricultural University.
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Abstract
Phosphate (P) adsorption -desorption characteristics of surface samples of 4 Vertisols were studied. The phosphate adsorption capacity of these soils was low, and ranged from 35 to 80 ug g-l of soil at 0.2 ug ml- l equilibrium solution P concentration. The Langmuir equation described the adsorption reasonably accurately at all solution P concentrations, and was much more accurate than the Freundlich, Gunnary, Tempkin and Dubinin-Radushkevich equations. P adsorption at 0.2 ug P ml- l equilibrium solution P concentration calculated from Langmuir isotherm was positively correlated with DTPA extractable Fe, but was not correlated with clay content. Neither P fertilization...
| Item Type: | Thesis (Masters) |
|---|---|
| Divisions: | UNSPECIFIED |
| CRP: | UNSPECIFIED |
| Subjects: | Others > Soil Science |
| Depositing User: | Mr T L Gautham |
| Date Deposited: | 27 Oct 2011 08:44 |
| Last Modified: | 27 Oct 2011 08:44 |
| URI: | http://oar7.icrisat.org/id/eprint/2669 |
| Acknowledgement: | UNSPECIFIED |
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