Difference between revisions of "Irrigation - Spray head"
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[[Image:Spray_head.PNG|thumb|right|150px|Spray irrigation for urban market gardening in Mali ]] | [[Image:Spray_head.PNG|thumb|right|150px|Spray irrigation for urban market gardening in Mali ]] | ||
| − | {| | + | {{procontable | pro= |
| − | + | - High water use efficiency. <br> | |
| − | + | - Saves energy and labour. <br> | |
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| − | + | }} | |
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| − | Saves energy and labour. | ||
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== Costs == | == Costs == | ||
Revision as of 14:16, 29 April 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.
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.
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.
| Advantages | Disadvantages/limitations |
|---|---|
| - High water use efficiency. - Saves energy and labour. |
Costs
US$ 2 - 5 for a spray-head. US$ 300 - 600 for a unit with petrol pumps.
Applying conditions
Location: West Africa.
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