The Potassium Status of Soils in the Savanna Zone of Nigeria
1971 ◽
Vol 7
(3)
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pp. 257-270
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SUMMARYThirty one soils from the Savanna Zone of Nigeria were low in exchangeable potassium, ΔK°, and ΔK°° and had very low potassium buffer capacities. The soils were low in clay, which was kaolinitic. Two soils high in 2:1 layer clay minerals contained higher quantities of labile potassium. Total potassium varied with parent material. Release of non-exchangeable potassium was low. After cropping, wet/dry cycles released exchangeable potassium. Potassium deficiency is expected to occur commonly with intensive cropping in the field.
1958 ◽
Vol 38
(1)
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pp. 36-43
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1981 ◽
Vol 21
(112)
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pp. 543
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Keyword(s):
Keyword(s):