Use of Principal Component Analysis on Data from Chemical Analysis of Tea Leaves
- 1 April 1970
- journal article
- research article
- Published by Cambridge University Press (CUP) in Experimental Agriculture
- Vol. 6 (4) , 319-325
- https://doi.org/10.1017/s0014479700009790
Abstract
SUMMARY Univariate analyses of variance of mineral nutrient contents of samples of first and third leaves from seven fertilizer experiments in East Africa gave only limited information. Principal component analyses were then carried out on the nutrient contents of the third leaves. The most important component represented a balance between nitrogen and the basic nutrients potassium, calcium and magnesium, the variation of which was often related to yield. The results suggest that yield responses are likely to follow fertilizer applications only when the ratio of nitrogen to basic nutrients is within a defined range.Keywords
This publication has 3 references indexed in Scilit:
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- Inter-Relations of Growth and Cropping in Apple Trees Studied by the Method of Component AnalysisJournal of Horticultural Science, 1965
- Principal Component Analysis of Designed ExperimentJournal of the Royal Statistical Society: Series D (The Statistician), 1962