Phosphate desorption in luvisols and solonetz from a Mediterranean region

Monteiro, M.C.H.; Monteiro, Fernando; Madeira, Manuel

http://hdl.handle.net/10400.11/539

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Authors

Monteiro, M.C.H.

Monteiro, Fernando

Madeira, Manuel

Abstract(s)

Transfer of P from soil to water is controlled by the P retention capacity in the solid phase, namely by the equilibrium between adsorbed and precipitated forms. Desorption of P and/or phosphate dissolution govern the amount of P released into drainage water, runoff or freshwater. Soil P evaluated by Olsen method showed a strong correlation with the capacity of soil to desorb P and, within certain limits, to the transfer of P to water. This transfer of P relates to losses that occur either in surface horizons, or in subsurface horizons (to drainage water, to runoff or by soil erosion to freshwater).

Description

Poster apresentado no 6th International Phosphorus Workshop, que decorreu em Sevilha de 27 de Setembro a 1 de Outubro de 2010.

Keywords

Phosphorus Desorption Olsen method

URI

http://hdl.handle.net/10400.11/539

Citation

MONTEIRO, M.C.H. ; MONTEIRO, F. ; MADEIRA, M. (2010) - Phosphate desorption in luvisols and solonetz from a Mediterranean region. In International Phosphorus Workshop, 6, Sevilha, 2010. Poster.