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dc.contributor.authorPleysier, J.L.
dc.contributor.authorJuo, A.S.R.
dc.contributor.authorHerbillon, A.J.
dc.date.accessioned2019-12-04T11:08:29Z
dc.date.available2019-12-04T11:08:29Z
dc.date.issued1979
dc.identifier.citationPleysier, J.L., Juo, A.S.R. & Herbillon, A.J. (1979). Ion exchange equilibria involving aluminum in a kaolinitic Ultisol. Soil Science Society of America Journal, 43(5), 875-880.
dc.identifier.issn0361-5995
dc.identifier.urihttps://hdl.handle.net/20.500.12478/1837
dc.description.abstractCation exchange equilibria in an acid Ultisol profile involving K-Al, Ca-Al, K-Ca, Na-K, and Na-Ca exchanges were studied. Selectivity coefficients, surface activity coefficients and free energy changes were computed using the thermodynamic formulations. In exchange equilibria involving Al, the magnitude of selectivity coefficients Kc, was affected by pH, surface composition, and hydrolysis of Al. In equilibria not involving Al, good reversibility for K-Ca, Na-K and Na-Ca exchanges was obtained. Potassium was selectively adsorbed in all horizons of the profile. The over-all selectively sequence follows the order of K>Al>Ca≈Na.
dc.format.extent875-880
dc.language.isoen
dc.subjectSelectivity Coefficients
dc.subjectSurface Activity Coefficients
dc.subjectFree Energy Change
dc.subjectK-Al
dc.subjectCa-Ai
dc.subjectN A-K
dc.subjectN A-Ca
dc.subjectK-Ca Exchanges
dc.subjectExchange Equilibria
dc.titleIon exchange equilibria involving aluminum in a kaolinitic Ultisol
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.isijournalISI Journal
cg.authorship.typesCGIAR single centre
cg.iitasubjectResearch Method
cg.iitasubjectSoil Information
cg.iitasubjectSoil Surveys And Mapping
cg.journalSoil Science Society of America Journal
cg.howpublishedFormally Published
cg.accessibilitystatusLimited Access
local.dspaceid83304
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.2136/sssaj1979.03615995004300050011x


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