Journal article
A modification of childs’ field test for ferrous iron and ferric-organic complexes in soils
JA Kennedy, HKJ Powell, JM White
Australian Journal of Soil Research | Published : 1982
DOI: 10.1071/SR9820261
Abstract
A modification to Childs’ field test for water-soluble and exchangeable ferrous iron in soils is described. To prevent redox decomposition of ferric-organic species, which is induced by the reagent a, a' -dipyridyl, a mixed NTA (nitrilotriacetic acid)-a, cr'-dipyridyl reagent at pH 7 is recommended. © 1982, CSIRO. All rights reserved.