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DIFFERENT FORMS OF POTASSIUM IN SOME SOILS OF CENTRAL SOUTHERN NIGERIA

Article Id: ARCC2838 | Page : 249 - 255
Citation :- DIFFERENT FORMS OF POTASSIUM IN SOME SOILS OF CENTRAL SOUTHERN NIGERIA.Indian Journal of Agricultural Research.2005.(39):249 - 255
1.0. Osernwota, A. Izevbigie, I.A. Ogboghodo and E.A. Aghirnien1
Address : Department of Soil Science, Ambrose Alii University, Ekpoma, Nigeria

Abstract

In twenty composite surface (0–15 cm) and sub-surface (15–30 cm) soil samples collected from different locations of Central Southern Nigeria, total, fixed, exchangeable and water soluble K Contents of the soils ranged from 300 to 1400, 27.8 to 109.2, 7.2 to 115 and 1.2 to 18.00 mg/kg, respectively. Clay was negatively and significantly correlated with total K (r = −0.32*) and water soluble K (r = −0.43**) whereas pH was positively and significantly correlated with total K (r = 0.51***). The distribution of K in these soils appeared to be influenced by parent material, its degree of weathering, and pH. Ninety per cent of the soils were deficient in exchangeable K.

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