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Decline in Fertility Status of a Tropical Forest Ochrosol Under Continuous Cropping

Published online by Cambridge University Press:  03 October 2008

C. S. Ofori
C. S. Ofori
Affiliation:
Soil Research Institute C.S.I.R., Kwadaso Kumasi, Ghana
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Summary

Crop yield on continuously cultivated tropical forest soil was maintained at a fairly high level by the application of mineral fertilizer. Although the low rate of nitrogen applied as ammonium sulphate did not increase yield, there was a significant effect on pH of the soil resulting in a reduction of the divalent cations on the exchange complex. The effect of mulch was mainly chemical through the release of nutrients.

Type
Research Article
Information
Experimental Agriculture , Volume 9 , Issue 1 , January 1973 , pp. 15 - 22
Copyright
Copyright © Cambridge University Press 1973

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References

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