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A Preliminary Survey of Cocoa Nutrition in Relation to Dieback Disease in Papua–New Guinea

Published online by Cambridge University Press:  03 October 2008

D. P. Drover
D. P. Drover
Affiliation:
Department of Chemistry and Earth Science, University of Papua and New Guinea, P.O. Box 1144, Boroko, Papua and New Guinea
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Summary

Cocoa leaves were analysed for potassium, calcium, magnesium, manganese, iron, copper and zinc to assess the nutritional status of this crop in Papua–New Guinea, as part of a study into a dieback disease. Potassium and manganese contents of the leaves were generally high, whilst magnesium, iron and copper were often low. Some exchangeable cation data from soils is presented. Nutrient imbalances, toxicities and deficiencies, may make cocoa more susceptible to dieback.

Type
Research Article
Information
Experimental Agriculture , Volume 6 , Issue 1 , January 1970 , pp. 33 - 40
Copyright
Copyright © Cambridge University Press 1970

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