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Effects of Environment and Cultural Conditions on Potassium, Calcium and Magnesium in Coffee Leaves

Published online by Cambridge University Press:  03 October 2008

J. B. D. Robinson
J. B. D. Robinson
Affiliation:
East African Agriculture and Forestry Research Organization, P.O. Box 30148, Nairobi, Kenya
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Summary

Potassium, calcium and magnesium in coffee leaves are presented as total K + Ca + Mg in dry matter and as percentages (proportions) of this sum. Brazilian coffee and leaf samples collected in different parts of Kenya generally fell within the normal ranges of values reported from the Kivu area in the Congo Republic. Data for Kenya coffee leaves are examined for the influence of season, cultural treatments such as organic mulch and fertilizers, and cropping level, on the concentration and balance of the nutrients.

Type
Research Article
Information
Experimental Agriculture , Volume 5 , Issue 4 , October 1969 , pp. 311 - 326
Copyright
Copyright © Cambridge University Press 1969

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