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Effects of Population and Inter-Row Spacing on Yields of Maize and Control of Weeds with Herbicides in the Irrigated Savanna

Published online by Cambridge University Press:  03 October 2008

A. H. Choudhary
A. H. Choudhary
Affiliation:
Institute for Agricultural Research, Ahmadu Bello University, PMB 1044, Zaria, Nigeria
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Summary

In field trials a population of 61,700 maize plants/ha produced higher total dry matter and grain yields than the conventional 36,000 plants/ha. There was no difference in yields with inter-row spacings of 45, 60 or 90 cm, regardless of population levels. Weed suppression was increased by the higher population even though the entire experimental area was treated with herbicides. In one of three years perennial sedge and annual weed growth started 4–5 weeks after herbicide application, under which conditions row spacing had a greater effect and weed growth was significantly less with 45 or 60 cm maize rows than at 90 cm.

Type
Research Article
Information
Experimental Agriculture , Volume 17 , Issue 4 , October 1981 , pp. 389 - 397
Copyright
Copyright © Cambridge University Press 1981

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References

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