This document discusses sprinkler irrigation systems. It defines sprinkler irrigation as a method of applying irrigation water similar to natural rainfall by pumping water under pressure through a system of pipes and spraying it into the air above crops. The document describes different types of sprinklers like impact, gun, pop-up, gear-driven, rotor, and turbo sprinklers. It also discusses the advantages of uniform water distribution and flexibility and disadvantages like high costs and sensitivity to wind.