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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.]]]