EXTRACTION ET REPARTITION DU FER ET DE L'ALUMINIUM LIES A LA MATIERE ORGANIQUE DANS QUATRE PODZOLS DU QUEBEC

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Abstract
When the selectivity of pyrophosphate as compared with dithionite and oxalate in the extraction of organo-metallic complexes had been established, the distribution of Fe and Al in humic and fulvic fractions of soil organic matter, before and after dialysis, was studied. A Podzolization index based on the amount of organo-metallic complexes of the spodic horizons was attempted.

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