The Coffee Board of Kenya Monthly Bulletin October 1991

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Date
1991
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Abstract
Copper was determined in soil and coffee plant materials from Robusta coffee growing areas of Busia and Siaya in Kenya.Soil samples were analyzed for EDTA (Ethylenediaminetetraacetic acid) extractable and total copper, While EDTAtxtractable copper ranged from 2 to 44 ugg- ,the total copper ranged from 10 to 110 ugg in both top and sub soils.There was found to be good relationship between total and EDT A extractable copper.Copper concentrations in branches ranged from 11 to 32 ugg while it ranged from 18 to 50 ugg-1 for the leaves,and 10.0 to 37 ugg-1 for the roots.
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Bulletin, 56 (660), pp. 1181-1200
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