Osemwota, I.O.2012-04-102012-04-102007Tropical Agricultural Research and Extension10pp.83-87https://dl.nsf.gov.lk/handle/1/7970Soil ScienceSoil nutrientsPotassiumSoil propertiesEstimationSoil testingExtractantsComparative studyComparison of selected extractants for the estimation of avilable K in soils of Edo state of Central Southern NigeriaArticle