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Measurement of Exchange Properties of Andisols by the Compulsive Exchange Method
Author(s) -
Gillman G. P.,
Hallman M. J.
Publication year - 1988
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1988.03615995005200040058x
Subject(s) - andisol , cation exchange capacity , ion exchange , chemistry , allophane , adsorption , ion , soil science , geology , soil water , organic chemistry
Following recent criticism that the compulsive exchange method for the determination of cation exchange capacity (CEC) and anion exchange capacity (AEC) is not appropriate for Andisols, the method has now been applied to 22 samples from eight Andisol profiles from Papua New Guinea. Results obtained for CEC and AEC compared favorably with those obtained by a Schofied‐type method, and amounts of soil exchangeable cations could be explained by the CEC values measured. Specific adsorption of sulphate, if it occurs, following addition of MgSO 4 in the procedure, does not affect the CEC value obtained.