Potassium Fixing Capacities of Some Selected Soils in South Western Nigeria

Thomas Ey, Omueti Jai and Bandele B
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Bandele B: Department of Agronomy, University of Ibadan, Nigeria

Agricultural Research & Technology: Open Access Journal, 2016, vol. 2, issue 1, 07-17

Abstract: Potassium fixation is a widespread phenomenon in most soils and accounts significantly for the availability of applied K to plants. Although this phenomenon is a direct consequence of the presence of 2:1 clay minerals, recent studies have shown that this phenomenon also occurs in tropical soils with insignificant content of 2:1 silicate clays. Also, the knowledge of potassium status of soils provides useful information for rational K fertilizer management. Therefore this study investigated the potassium fixation capacities as well as the potassium status of some soils of southwestern Nigeria. Potassium fixation in the soils was conducted by evaluating the effect of applied K on the extractability of K with time. A series of five K sorption treatment solution (0.11, 0.22, 0.45, 0.90 and 1.80 cmol/kg) were prepared and applied as KCl replicated three times. The first set of soil samples were extracted with 1N NH4OAc extractant for K after the first day of incubation.

Keywords: open access; Juniper publishers agriculture open access journals; agriculture peer reviewed journals; sustainable agriculture peer reviewed journals; agriculture research journal; agricultural sciences open access journal; open access journals of agriculture; agriculture journals impact factor; agriculture academic journals; agriculture journals by impact factor; agricultural engineering journals; juniper publishers review (search for similar items in EconPapers)
Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:adp:artoaj:v:2:y:2016:i:1:p:07-17

DOI: 10.19080/ARTOAJ.2015.02.555577

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