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Weed Competition, Yield and Tuber Size of Potato as Affected by Herbicides Under Sudanese Conditions

Published online by Cambridge University Press:  03 October 2008

A. I. Mohamed  and
M. O. M. Nour
A. I. Mohamed
Affiliation:
Department of Horticulture, Faculty of Agriculture, University of Khartoum, Shambat, Sudan
M. O. M. Nour
Affiliation:
Department of Horticulture, Faculty of Agriculture, University of Khartoum, Shambat, Sudan
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Summary

The effects on the potato crop of the herbicides metribuzin, linuron and metobromuron, singly and in combination with each other and with hand weeding, were investigated and compared with cropped and uncropped weedy controls. Weed competition was determined by measuring weed dry weight. When the three herbicides were applied singly metribuzin gave the lowest weed dry weight, while the combination of metribuzin, metobromuron and hand weeding gave the lowest weed dry weight per unit area of all treatments in both seasons. However, the best potato yield was obtained from the combination of metribuzin and hand weeding. Metobromuron consistently reduced yield through reduction of tuber size irrespective of its effect on weed competition. Metribuzin was the best herbicide for the control of broad leaved weeds and many grasses.

Type
Research Article
Information
Experimental Agriculture , Volume 22 , Issue 1 , January 1986 , pp. 59 - 65
Copyright
Copyright © Cambridge University Press 1986

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References

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