Automated Methods for Nitrogen, Phosphorus and Potassium Determination in Coffee Plant and Mulching Materials

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Date
1972
Authors
Kimeu, B.S.
Aduayi, E.A.
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Abstract
In order to cope more accurately and rapidly with the chemical analyses of the massive influx of samples, as a result of the introduction of a leaf analysis service for coffee growers by the Coffee Research Station in 1971, the application of automated chemical analyses was employed. Automated methods adapted for the determination of nitrogen and phosphorus on the Technicon Autoanalyser and potassium on the Unicam Atomic Absorption Spectrophotometer using the same digest solution are described and the results are compared to manual determinations. A better agreement between replicated automated determinations was established for each element analysed than in the non-automated determinations.
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East African Agricultural And Forestry Journal, 38, pp. 207-210
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