Weed problems in irrigation schemes in the Sudan

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Book chapter

Title:	Weed problems in irrigation schemes in the Sudan
Authors:	Koch, Werner Bischof, Friedrich
Book title:	Problems of agricultural development in the Sudan
Year:	1982
Pages:	5-22
Language:	English
Geographic term:	Sudan
Subjects:	irrigation weeds
Abstract:	Weeds may reduce the yields of irrigated crops in the Sudan by more than 80%. Weed control, which has to take place during a relatively short period of early crop establishment, is very time consuming if it is done by hand weeding or hoeing. The manpower needed is no longer sufficiently available. Mechanical weed control cannot be considered as a general alternative. Therefore herbicides are being rapidly introduced. They have to be imported. Their application requires a high standard of knowledge. For this reason weeds and their control are of increasing importance in research and training programs. Ref., sum.