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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.
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.
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 ...
Valmont Industries, Inc. (NYSE: VMI) is a large, publicly held American manufacturer of Valley center pivot and linear irrigation equipment, windmill support structures, lighting and traffic poles and steel utility poles. Their corporate office is in Omaha, Nebraska. Their plant and aviation department is in Valley, Nebraska.
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 ...
A shadoof or shaduf [1] is an irrigation tool that is used to lift water from a water source onto land or into another waterway or basin. It is highly efficient, and has been known since 3000 BCE. [citation needed] The mechanism of a shadoof comprises a long counterbalanced pole on a pivot, with a bucket attached to the end of it.
Over the past four years, the Trump administration has destroyed or distorted vast swaths of information vital to public life and safety. This is an account of the damage.
A driving wheel on a steam locomotive. Addendum circle; Belt problem; Center pivot irrigation; Circular ditches; Circular slide rule; Compass (drafting) Crop circle; Dip circle; List of gear nomenclature; Peaucellier–Lipkin linkage; Pitch circle; Repeating circle; Timber circle; Traffic circle. List of circles in Washington, D.C. List of ...
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