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Reversibility of non-labile phosphorus in soils under microbial and chemical reduction. I – chemical and mineralogical alterations

Iván Ernesto Fernández R., Roberto Ferreira Novais, Flancer Novais Nunes, João Carlos Ker

01/Dec/2008

Alterations in the redox potential (Eh) of soils, as observed in hydromorphic soils, cause significant alterations in the chemical and mineralogical soil characteristics and have a strong influence on the behavior of P, altering the ratio of the labile and non-labile forms. The purpose of this study was to verify the effect of conditions of low Eh on the dissolution/reversibility of non-labile P forms and solubilization/behavior of Fe and Al oxyhydroxides. Samples of 11 soils were incubated with 300 mg […]