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Effects of Ground Rock Phosphate-Sulphur Mixture on Yield and Nutrient Uptake of Groundnuts (Arachis hypogaea) in Northern Nigeria

Published online by Cambridge University Press:  03 October 2008

A. R. Bromfield
A. R. Bromfield
Affiliation:
Institute for Agricultural Research, Samaru, P.M.B. 1044, Zaria, Nigeria
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Summary

Groundnuts given a mixture of S35-labelled ground rock phosphate and sulphur at planting were radioactive 14 days later, when go per cent of the seedlings had emerged. Forty days after planting one-third of the total plant-S was from the fertilizer, and the mean recovery of fertilizer-S was 18 per cent by harvest. In field experiments the mixture outyielded ground rock phosphate and was as good as single superphosphate, though drought diminished yields generally. At three sites which were harvested the percentages of applied-S recovered were 12, 20 and 27 per cent. Significantly more P was taken up by the crop receiving the mixture than was recovered from the ground rock phosphate alone.

Type
Research Article
Information
Experimental Agriculture , Volume 11 , Issue 4 , October 1975 , pp. 265 - 272
Copyright
Copyright © Cambridge University Press 1975

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References

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