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Zinc nutrition of onions as influenced by phosphorus

Published online by Cambridge University Press:  27 March 2009

M. I. Asif ,
A. A. Khan  and
M. N. Ajakaiye
M. I. Asif
Affiliation:
Institute for Agricultural Research
A. A. Khan
Affiliation:
Department of Biological Sciences, Ahmadu Bello University, Zaria, Nigeria
M. N. Ajakaiye
Affiliation:
Institute for Agricultural Research
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Summary

In a field study it was found that application of high P induced Zn deficiency symptoms on onion (Allium cepa L.) plants, increased P concentration but decreased that of Zn. Conversely, application of Zn tended to increase Zn concentration of both tops and bulbs and lowered P concentration. Effectiveness of Zn varied with the amount of P applied. Evidently P and Zn are mutually antagonistic. Using sub-soil on the top of raised beds and heavy P fertilization appear to be responsible for inducing Zn deficiency in onions in northern Nigeria.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 87 , Issue 2 , October 1976 , pp. 277 - 279
Copyright
Copyright © Cambridge University Press 1976

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References

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