Extraction methods for aluminium and iron in relation to phosphate adsorption
作者:
Danilo Lopez‐Hernandez,
C.F. Burnham,
期刊:
Communications in Soil Science and Plant Analysis
(Taylor Available online 1973)
卷期:
Volume 4,
issue 1
页码: 9-16
ISSN:0010-3624
年代: 1973
DOI:10.1080/00103627309366412
出版商: Taylor & Francis Group
关键词: extraction methods;aluminium;iron;adsorption;added phosphate
数据来源: Taylor
摘要:
Three extraction methods for aluminium and two for iron were compared with phosphate sorptivity (Bache and Williams index) for 40 tropical and 40 British soil samples. Extractable aluminium was well correlated with phosphate sorptivity in both groups, but extractable iron was well correlated only in British soils. In general methods which extracted more sesquioxides gave higher correlation coefficients. With aluminium, N ammonium acetate (pH 4.8) or 0.1N HCl gave better correlation than N KCl, while with iron dithionitecitrate was better than 0.1N HCl.
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