Difference between revisions of "Irrigation - Spray head"
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Revision as of 15:44, 27 July 2009
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Spray-head irrigation requires pressure from pedal or motor pumps. In West Africa, the spray-head is mounted on a lay-flat hose connected to a small petrol pump.
Spray irrigation is an intermediate option between a watering can and more sophisticated sprinkler or drip irrigation. It has high water use efficiency and saves energy and labour.
Treadle pumps combined with spray-heads are promoted by Approtec in East Africa and Enterprise Works in West Africa.
History and social context
Due to its simplicity, spray irrigation technology has spread spontaneously from farmer to farmer in West-African countries such as Mali, Niger and Togo. A recent survey in Bamako, Mali, among 80 market gardeners showed that more than 60% used this method.
Suitable conditions
| Advantages | Disadvantages/limitations |
|---|---|
| - High water use efficiency. - Saves energy and labour. |
Technical specification
Operation
Maintenance
Manufacturing
Estimated Lifespan
Cost
US$ 2 - 5 for a spray-head. US$ 300 - 600 for a unit with petrol pumps.
Country experiences
Location: West Africa.
Manuals
Movies
External Links
www.enterpriseworks.org www.hipponet.nl www.approtec.org
References
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