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Effects of Fertilizers and Plant Age on Distribution of Nutrients in Nigerian Cassava (Manihot esculenta)

Published online by Cambridge University Press:  03 October 2008

J. E. Okeke ,
B. T. Kang  and
G. O. Obigbesan
J. E. Okeke
Affiliation:
National Root Crops Research Institute, Umudike, Umuahia, Nigeria
B. T. Kang
Affiliation:
National Root Crops Research Institute, Umudike, Umuahia, Nigeria
G. O. Obigbesan
Affiliation:
National Root Crops Research Institute, Umudike, Umuahia, Nigeria
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Summary

The effects of soil fertilization and plant age on the nutrient composition of various parts of five Nigerian cassava varieties were studied to identify suitable index plant tissue(s), sensitive growth stage(s) and optimum nutrient concentrations, to develop better fertilizer practices for the crop. The third month from planting was the most sensitive stage for diagnostic sampling, when N status was best reflected in leaf blades and K in petioles. N and P were most concentrated in leaf blades and least in root tubers. The largest root tuber yields after 12 months were associated with leaf blade analyses of 5% N, 0.4% P and 2% K at 3 months after planting.

Type
Research Article
Information
Experimental Agriculture , Volume 18 , Issue 4 , October 1982 , pp. 403 - 411
Copyright
Copyright © Cambridge University Press 1982

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