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Sprinkler

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[[Image:sprinkler icon.png|right|80px]]

[[Image:sprinkler in India.jpg|thumb|right|200px|While the temperatures soar to post 40-degree celsius, some farms around Yehla are lush green with groundnut crop thanks to the artificial rain of sprinklers. The vicinity of Poos river makes lift irrigation feasible and economical for the farmers. Photo: [https://www.facebookflickr.com/photos/asmita.agribusiness -agri/ Asmita Archives 2012.Agribusiness]]]__NOTOC__ <small-title />

Sprinkler irrigation involves distributing water in pipes under pressure and spraying it into the air so that it breaks up into small droplets and falls to the ground like natural rainfall. Sprinkler systems are generally more efficient and use less labour than surface irrigation and can be adapted more easily to sandy and erodible soils on undulating ground. There are many types of sprinkler system available, but the most common is a system using portable pipes (aluminium or plastic) supplying rotary impact sprinklers. An individual rotary impact sprinkler produces a circular wetting pattern with poor uniformity. To obtain good uniformity, several sprinklers are always operated close together so that the patterns overlap.

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===Construction, operations and maintenance===

[[Image:microsprinkler.jpg|thumb|right|200px|Microsprinklers. These emitters are low capacity rotary sprinklers designed for low discharges uniformly distributed over the irrigated area in a rainfall pattern. Made of durable plastic, they have various operating mechanisms, and are usually compact without external moving parts. Photo: FAO, [http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=0CFQQFjAB&url=ftp%3A%2F%2Fftp.fao.org%2Fagl%2Faglw%2Fdocs%2Fpressirrig.pdf&ei=IXLFT-uSFMilsAKz6bynBg&usg=AFQjCNHeWvjBA4utqA--phzVhehEaf6zBA&sig2=7GcZPFMRxGrtH17V11Kkog TECHNICAL HANDBOOK ON PRESSURIZED IRRIGATION TECHNIQUES.]]]

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