Extraction of potassium from some kaolinitic soils of the tropics

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dc.creatorPleysier, J.L.
dc.creatorJanssens, J.
dc.creatorCremers, A.
dc.date1988
dc.date2025-10-16T13:25:24Z
dc.date2025-10-16T13:25:24Z
dc.date.accessioned2026-06-27T16:03:45Z
dc.descriptionThree methods for soil potassium extraction (M NH4OAc pH 7, 0.01 M AgTU and 30 % hot H2SO4) were compared for a variety of kaolinitic soils of the tropics. The AgTU‐extractable K was much higher than the M NH4OAc‐extractable K when vermiculite clay was present in the soil. The correlation between both was given by an R value of 0.937. The amounts of K extracted by 0.01 M AgTU and by hot H2SO4 were approximately the same. The R value for these two methods was 0.843. It is suggested that the AgTU extractant could be used for determination of plant‐available K in soil and for testing for the presence or absence of vermiculite clay in soils.
dc.formatapplication/pdf
dc.identifierhttps://hdl.handle.net/10568/177170
dc.identifier.urihttp://hdl.handle.net/123456789/121406
dc.languageen
dc.publisherInforma UK Limited
dc.rightsLimited Access
dc.sourcePleysier, J. L., Janssens, J., & Cremers, A. (1988). Extraction of potassium from some kaolinitic soils of the tropics. Communications in Soil Science and Plant Analysis, 19, (1), 69-77.
dc.subjectpotassium
dc.subjecttropics
dc.subjectclay soils
dc.subjectsoils
dc.subjecttropical soils
dc.titleExtraction of potassium from some kaolinitic soils of the tropics
dc.typeJournal Article

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