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Response of Maize Varieties in Tanzania to Different Plant Populations and Fertilizer Levels

Published online by Cambridge University Press:  03 October 2008

A. Bolton
A. Bolton
Affiliation:
Research and Training Institute, Ukiriguru, P.O. Box 1433, Mwanza, Tanzania
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Summary

Trials were conducted for three seasons at a range of altitudes in Tanzania to investigate the effect of plant populations and levels of applied nitrogen and phosphate on the performance of maize varieties. Increasing population to 47,500 plants per hectare gave increased yields even though cob size and number of cobs per 100 plants showed considerable reductions, but 72,000 plants/ha. is probably too many for late maturing varieties. Sites over 900 m. showed good response to applied fertilizer, but below 900 m. response was much smaller or absent. Cob height was increased by fertilizer but hardly affected by spacing, no treatment made any appreciable difference to days to 50 per cent pollen shed, and lodging increased with closer spacing.

Type
Research Article
Information
Experimental Agriculture , Volume 7 , Issue 3 , July 1971 , pp. 193 - 203
Copyright
Copyright © Cambridge University Press 1971

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References

REFERENCES

Bolton, A. & Scaife, M. A. (1969). E. Afr. agric. for. J. 35, 11.CrossRefGoogle Scholar
Maize Research Section, Kitale, Kenya (1968). Weekly News, 2 February.Google Scholar
Progress Report No. 8 of 1966. Western Research Centre, Ukiriguru, Tanzania.Google Scholar
Scaife, M. A. (1968). J. agric. Sci., Camb. 70, 209.CrossRefGoogle Scholar
Zambia Department of Agriculture (1967). Crops Memo, Research Branch, Mount Makulu Research Stn.Google Scholar