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Responses of Cereals to Fertilizers in Northern Nigeria. II. Maize

Published online by Cambridge University Press:  03 October 2008

P. R. Goldsworthy
P. R. Goldsworthy
Affiliation:
Institute for Agricultural Research, Ahmadu Bello University, Samaru, Zaria, Northern Nigeria
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Summary

Field trials in Northern Nigeria have shown that the yield of introduced varieties of maize can be economically improved with combinations of nitrogen and phosphorus fertilizer. Three response areas have been defined. In the south, where most of the maize is grown, the initial response is to nitrogen. Further north, with the exception of one small area in which the response is almost entirely to phosphorus, phosphorus and nitrogen and equal limiting factors. Estimates of the most profitable combinations of nitrogen and phosphorus to use in each area have been obtained from quadratic response surfaces fitted to the yield data of the experiments.

Type
Research Article
Information
Experimental Agriculture , Volume 3 , Issue 4 , October 1967 , pp. 263 - 273
Copyright
Copyright © Cambridge University Press 1967

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References

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