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Soil Fertility Under Continuous Cultivation in Northern Nigeria. II. Responses to Fertilizers in the Absence of Organic Manures

Published online by Cambridge University Press:  03 October 2008

R. G. Heathcote  and
K. R. Stockinger
R. G. Heathcote
Affiliation:
Institute for Agricultural Research, Ahmadu Bello University, Samaru, Zaria, Nigeria
K. R. Stockinger
Affiliation:
Institute for Agricultural Research, Ahmadu Bello University, Samaru, Zaria, Nigeria
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Summary

Initial results of long-term trials in northern Nigeria indicate that deficiencies of potassium and trace elements, and soil acidity, may become important under continuous cultivation on some soils, in addition to the more common deficiencies of nitrogen and phosphorus.

Type
Research Article
Information
Experimental Agriculture , Volume 6 , Issue 4 , October 1970 , pp. 345 - 350
Copyright
Copyright © Cambridge University Press 1970

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References

REFERENCES

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Goldsworthy, P. R. (1967a and b). Expl Agric. 3, 29 and 263.CrossRefGoogle Scholar
Heathcote, R. G. (1970). Expl Agric. 6, 229.CrossRefGoogle Scholar
Russell, E. W. (1968). Proc. 101, Fertiliser Society, London.Google Scholar