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A satellite image of circular fields characteristic of center pivot irrigation, Kansas Farmland with circular pivot irrigation. Center-pivot irrigation (sometimes called central pivot irrigation), also called water-wheel and circle irrigation, is a method of crop irrigation in which equipment rotates around a pivot and crops are watered with sprinklers.
A small center pivot system from beginning to end Rotator style pivot applicator sprinkler Center pivot with drop sprinklers Wheel line irrigation system in Idaho, US, 2001 Center pivot irrigation. Center pivot irrigation is a form of sprinkler irrigation utilising several segments of pipe (usually galvanized steel or aluminium) joined and ...
The farms are typically set up as centre pivot irrigation fields of around 0.9 hectares (2.2 acres) in size. Farms have up to 70 pivots but the majority of farmers maintain 5-10. [3]: 27 The pivot irrigation systems are locally made from aluminium and iron. They complete a full rotation in around 2.5–3 hours and supply water to the crops as a ...
Center-pivot irrigation was invented in 1940 [3] by farmer Frank Zybach, who lived in Strasburg, Colorado. In the 1950s, Stout-Wyss Irrigation System, a firm based in Portland, Oregon, developed a rolling pipe type irrigation system for farms that has become the most popular type for farmers irrigating large fields.
Center pivot irrigation in Saudi Arabia is typical of many isolated irrigation projects scattered throughout the arid and hyper-arid regions of the Earth. Nonrenewable fossil water is mined from depths as great as 1 km (3,000 ft), pumped to the surface, and distributed via large center pivot irrigation feeds.
Irrigation is developing through different models. In the South, Southeast, and Center-West regions, private irrigation predominates. with emphasis on planting rice and grain crops. In these areas investment depends on the return obtained from the sale of the irrigated crops.
center-pivot irrigation. Also circle irrigation or water-wheel irrigation. A method of crop irrigation in which a long line of sprinklers mounted upon or dangling from a metal frame with multiple sets of wheels rotates slowly around a pivot at the center of a field, watering a very large circular area centered on this point. Water is usually ...
Surface irrigation remains the most common irrigation technique accounting for 58.6% of the total area irrigated in 2013/14 compared to 10.8% for drip, 13.2% for centre pivot and lateral move machines and 4.4% for microspray systems. [26] These values may change from season to season due to water availability and commodity prices.