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Résumé :
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Microirrigation systems convey water in pipes and tubing from the pump (water source) to the plant with virtually no losses in transmission. Special emitters and materal lines are used to deliver water, fertilizers, and agricultural chemicals in a localized manner close to the plant at much smaller application rates than those of conventional surface and sprinkler irrigation methods. This makes it possible to apply water and fertilizer by microirrigation more frequently and maintain steady favorable moisture and nutritional conditions in the root zone. A well designed, managed and maintained microirrigation system can enhance the efficiency of utilization of irrigation water, fertilizers and agricultural chemicals. However, microirrigation is not without limitations. It is a capital intensive and management intense system and it is not a cure-all solution. The key to efficient irrigation is system maintenance and management, and particularly so for microirrigation. The best designed system can become very inefficient if not properly managed and maintained. It is advisable to try microirrigation on limited acreage first to find out if it pays to use it under your local conditions.
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