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Foliar Analysis as a Guide to NPK Nutrition of Pineapples in the Forest Zone of Ghana

Published online by Cambridge University Press:  03 October 2008

W. Godfrey-Sam-Aggrey
W. Godfrey-Sam-Aggrey
Affiliation:
Department of Horticulture, Faculty of Agriculture, University of Science & Technology, Kumasi, Ghana
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Summary

In a 20 plot experiment with central composite second-order rotatable design, basal non-chlorophyllous sections of “D” leaves of Sugarloaf pineapples were sampled at harvest and analysed for N, P, K. Maximum yield of 17·8 tons per acre of good quality Sugarloaf pineapples and maximum fruit length of 27·4 cm. were associated with the nutrient combination of 36–42–32 lb/acre N P K applied at 4, 6, 11 and 12 months. The nutrient levels in the basal sections of “D” leaves corresponding to maximum fruit yield were 0·35–0·40% N; 0·04% P; 0·44% K; K/P 11·2–11·5: 1. K/P ratio for maximum fruit length was 10·4–11·5: 1. N/K ratio was associated with lodging.

Type
Research Article
Information
Experimental Agriculture , Volume 6 , Issue 4 , October 1970 , pp. 327 - 333
Copyright
Copyright © Cambridge University Press 1970

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