NF X31-121

Soil quality. Chemical methods. Determination of copper, manganese, zinc and iron. Extraction in presence of DTPA.

La présente norme définit une méthode d'extraction et de dosage permettant de déterminer les oligo-éléments tels que le cuivre, le manganèse, le zinc et le fer présents dans un échantillon de sol sous forme extractible par le DTPA. Elle s'adresse aux laboratoires d'analyse des sols. Le domaine d'application et l'interprétation des résultats, auxquels conduit cette méthode, sont du ressort de l'agronomie et ne sont donc pas détaillés dans ce document.

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