The Potassium Status of Soils in the Savanna Zone of Nigeria
- 1 July 1971
- journal article
- research article
- Published by Cambridge University Press (CUP) in Experimental Agriculture
- Vol. 7 (3) , 257-270
- https://doi.org/10.1017/s001447970000034x
Abstract
SUMMARY Thirty 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.Keywords
This publication has 1 reference indexed in Scilit:
- Methods of Soil AnalysisPublished by Wiley ,1965