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Studies on White Yam (Dioscorea rotundata) II. Changes in Nutrient Content with Age

Published online by Cambridge University Press:  03 October 2008

R. A. Sobulo
R. A. Sobulo
Affiliation:
Ministry of Agriculture and Natural Resources, Western State, Nigeria
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Summary

Variation in the percentage of nitrogen, phosphorus and potassium content of a variety of white yam, grown without fertilizer, and the nutrients removed per acre by various portions of the plant, were determined. The time to apply fertilizers, and the most suitable portion of the plant for foliar analysis, were deduced from the changes in nutrients with age. The effect of nitrogen fertilizer on yield, and the nutrient content of the harvested tuber, were studied. The influence of a yam crop in a rotation is discussed.

Information

Type
Research Article
Information
Experimental Agriculture , Volume 8 , Issue 2 , April 1972, pp. 107 - 115
Copyright
Copyright © Cambridge University Press 1972

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References

REFERENCES

Amon, B. O. E. (1962). Rep. First Meeting on Soil Fertility and Fertilizer Use in West Africa. FAO publication.Google Scholar
Amon, B. O. E. & Adetunji, S. A. (1969). Fertilizer Work in Western Nigeria, Results 1960–1969. Min. Agric. Natural Resources, Western State, Nigeria.Google Scholar
Baker, E. F. I. (1962–1964). Annual Report. Min. Agric. Natural Resources, Western Region, Nigeria.Google Scholar
Bromfield, A. R. (1969). Expl Agric. 5, 91.CrossRefGoogle Scholar
Chapman, T. (1965). Trop. Agric., Trin. 42, 145.Google Scholar
Cooke, G. W. (1970). Potash Review. Intern. Pot. Inst. 6, 31.Google Scholar
Ferguson, T. U. & Haynes, P. H. (1970). Proc. 2nd Int. symp. Trop. Root Crops, Hawaii, 1, 93.Google Scholar
Gooding, E. G. B. & Hoad, R. M. (1967). Proc. 1st int. Symp Trop. Root Crops, Trinidad 1, 137.Google Scholar
Irving, H. (1956). Trop. Agric., Trin. 33, 67.Google Scholar
Obi, J. K. (1959). Reg. Res. Sta. Samaru, Min. Agric., Northern Region, Nigeria, Tech. Rep. 8.Google Scholar
Sobulo, R. A. (1972). Expl Agric. 8, 99.CrossRefGoogle Scholar
Stephens, D. (1960). Emp. J. Expl Agr. 28, 1.Google Scholar
Vine, H. (1953). Emp. J. Expl Agr. 21, 65.Google Scholar