The Influence of Fertilizers and Manure on the Ph Reaction of a Coffee Soil

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Date
1956/1957
Authors
Robinson,J. B. D.
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Abstract
During the course of soil-nitrogen studies on the Kikuyu red loam soils at the Coffee Research Station, Ruiru, it has become apparent that the soil pH reaction is being influenced very appreciably by treatments applied in the manurial trials on the Station. A short term investigation was undertaken to examine the effects of various manurial treatments on the soil pH reaction, with particular reference to the use of ammonium sulphate fertilizer and to the question of the position of application in relation to the coffee tree.
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East African Agricultural And Forestry Journal, 22 (No 8), p. 76-80