Qualitative mineralogy and chemical properties of a few soils from Sao Paulo, Brazil

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dc.creatorPratt, P.F.
dc.creatorPeterson, F.F.
dc.creatorHolzhey, C.S.
dc.date2025-07-28T16:17:52Z
dc.date2025-07-28T16:17:52Z
dc.date1969-10-01
dc.date.accessioned2026-06-09T02:17:24Z
dc.descriptionMineralogical analyses of clay, silt, and oat soils, and of total free iron oxides, provide some clues to the chemical properties of the staged São Paulo soils. The soy-yellow Podzolic soils, which contained some micaceous silicates in the clay and silt fractions, had more permanent negative charge and more exchangeable aluminum than the red-yellow Latosols and the red Latosols that did not contain micaceous minerals. The ratio of pH-dependent charge to permanent charge was highest in the red Latosols and lowest in the red-yellow Podzolics. The relative affinity of the soil for Ca in the Na-Ca exchange equilibrium was highest in the red Latosols and lowest in the red-yellow Podzolics. Phosphorus fixation was correlated with iron oxide content within the soil group, but the overall relationship for all soils did not show a significant correlation.
dc.format6
dc.formatapplication/pdf
dc.identifierhttps://repositorio.catie.ac.cr/handle/11554/13399
dc.identifieropenAccess
dc.identifier.urihttp://hdl.handle.net/123456789/4286
dc.languageen
dc.publisherInstituto Interamericano de Ciencias Agrícolas (IICA)
dc.relationTurrialba Vol. 19, no. 4
dc.subjectMineralogía||mineralogy||Mineralogia||minéralogie
dc.subjectAnálisis del suelo||soil analysis||análise do solo||analyse de sol
dc.subjectPropiedad del suelo||soil properties||undefined||propriété du sol
dc.subjectSuelo arcilloso||clay soils||solo argiloso||sol argileux
dc.subjectFósforo||phosphorus||Fósforo||phosphore
dc.subjectBrasil||Brazil||Brasil||Brésil
dc.subjectSede Central
dc.titleQualitative mineralogy and chemical properties of a few soils from Sao Paulo, Brazil
dc.typeArtículo

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