Extractable aluminium, iron and manganese in mineral soils: I Dependence of extractability on the pH of oxalate, pyrophosphate and EDTA extractants

Al, Fe and Mn in two mineral soils were extracted by 0.05 M and 0.02 M oxalate and pyrophosphate and 0.02 M EDTA solutions the pH of which was adjusted to values ranging from 1.7 to 11.0. The extractability of metals tended to decrease as the pH rose and as the deprotonation of extractant acid, expr...

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Bibliographic Details
Main Author: Raina Niskanen
Format: Article
Language:English
Published: Scientific Agricultural Society of Finland 1989-03-01
Series:Agricultural and Food Science
Online Access:https://journal.fi/afs/article/view/72355