Soil Fertility under Continuous Cultivation in Northern Nigeria
- 1 April 1970
- journal article
- research article
- Published by Cambridge University Press (CUP) in Experimental Agriculture
- Vol. 6 (3) , 229-237
- https://doi.org/10.1017/s0014479700009376
Abstract
SUMMARY Soil acidity, incipient potassium deficiency, and a deficiency of one or more trace elements were limiting factors in three trials of long-term soil fertility changes under continuous cultivation in the Sudan Savanna zone of Nigeria. The effectiveness of organic manures is explained largely or wholly in terms of these factors, since no evidence has yet been found to suggest that the addition of organic matter as such is of value.Keywords
This publication has 3 references indexed in Scilit:
- Long-Term Effects of Fertilizers and Manure on Soil and Leaves of Cotton in NigeriaExperimental Agriculture, 1969
- Soil analysis and the assessment of fertility in tropical soilsJournal of the Science of Food and Agriculture, 1963
- Continuous Arable Cropping with the use of Manure and FertilizersEast African Agricultural and Forestry Journal, 1962