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dc.contributor.authorSyers, J. K.
dc.contributor.authorWilliams, J. D. H.
dc.contributor.authorCampbell, A. S.
dc.contributor.authorWalker, T. W.
dc.date.accessioned2008-04-10T21:47:37Z
dc.date.available2008-04-10T21:47:37Z
dc.date.issued1967-11
dc.identifier.citationSyers, J. K., Williams, J. D. H., Campbell, A. S., & Walker, T. W. (1967). The significance of apatite inclusions in soil phosphorus studies. Soil Science Society of America Proceedings, 31(6), 752–756.en
dc.identifier.issn0038-0776
dc.identifier.urihttps://hdl.handle.net/10182/432
dc.description.abstractApatite inclusions have been identified in several primary minerals, and their abundance and morphology have been described. A comparison of several methods used for the determination of total P in soils showed that Na₂CO₃ fusion is the most reliable method for samples which contain apatite inclusions and that the effectiveness of extraction was usually in the order: Na₂CO₃ fusion > HF digestion > HClO₄ digestion > N H₂SO₄ extraction following ignition. Included apatite was identified using a petrological microscope in residues after digestion with 60% HClO₄. This form was also extracted much more slowly by 0.5N HCl than was nonincluded apatite. Included apatite resistant to attack by 1N HCl was determined as "residual inorganic P" in fractionation studies on weakly weathered materials, and the influence of fineness of grinding on the ratio of "acid-extractable Ca-P" to residual inorganic P indicated the likely dimensions of the inclusions in different minerals.en
dc.language.isoenen
dc.publisherSoil Science Society of Americaen
dc.relationOriginally published online at http://soil.scijournals.orgen
dc.relation.urihttp://soil.scijournals.org/cgi/content/abstract/31/6/752en
dc.rightsCopyright © 1967 Soil Science Society of Americaen
dc.subjectphosphorusen
dc.subjectsoil chemistryen
dc.subjectapatite inclusionsen
dc.subjectabundanceen
dc.subjectmorphologyen
dc.titleThe significance of apatite inclusions in soil phosphorus studiesen
dc.typeJournal Articleen
dc.subject.marsdenFields of Research::300000 Agricultural, Veterinary and Environmental Sciences::300100 Soil and Water Sciences::300103 Soil chemistryen
lu.contributor.unitSoil and Physical Sciences Groupen


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