center pivot irrigation definition

Center pivot water application system s under a wide range of conditions. Center pivots have been adapted to run on many different soils and to move over uneven surfaces.

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And unlike furrow systems center pivot irrigation systems do not cause much soil erosion and water coverage under the system is very orderly.

. A method of irrigation used mainly in the western US in which water is dispersed through a long segmented arm that revolves about a deep well and covers a circular area from a quarter of a mile to a mile in diameter. Most center-pivots are one-quarter mile long and irrigate 128- to 132-acre circular fields. But now growers need to be able to apply water by considering such factors as the crop or terrain with corn requiring more.

Pivots can be used on almost any field size or shape. Center Pivot Irrigation means a system for spreading liquid livestock manure which involves a single lateral fixed at one end and elevated on wheels that transport the lateral around the field at some speed of rotation. This means you can configure your system at or even below the current level of the crops to ensure they receive proper hydration and adjust the height throughout their growth cycle.

With this type of irrigation crops within the radius of the pivot point are irrigated in a circular fashion. Some center pivot irrigated crop s require special cultural practices such as planting in circles or the use of small pits or reservoirs in the furrows to facilitate infiltration on heavy soils and prevent surface runoff. The following formulas are used in the design and evaluation of center-pivot irrigation systems.

FORMULAS USED IN DESIGNING AND EVALUATING CENTER-PIVOT IRRIGATION SYSTEMS. This irrigation system provides the versatility that other irrigation technologies cant and improves efficiency and water management while providing a high economic return. As the name suggests center pivots irrigate in a circular pattern around a central pivot point.

Center pivot irrigation can deliver water at the rate of your choosing from a height you set. Center-pivot irrigation definition a method of irrigation used mainly in the western US in which water is dispersed through a long segmented arm that revolves about a deep well and covers a circular area from a quarter of a mile to a mile in diameter. Application efficiencies can range as high as 80 or more.

With center-pivot irrigation the irrigated area per unit length of lateral must increase with distance from the pivot point. Center pivot irrigation is a mechanized irrigation system which irrigates crops in a circular pattern around a central pivot. Center pivot irrigation is important because getting the water where it needs to be is critical for farm operations Andrews says.

Water and power is supplied at the pivot point. Center pivots are customized for the terrain they irrigate. Pivots are capable of applying water fertilizer chemicals and herbicides.

All center-pivot systems must be designed in accordance with applicable requirements contained in CPS 442. One end of the. This versatility can improve the efficiency of irrigation practices by using a single piece of machinery to perform several functions.

Pivots may spray water fertilizer pesticides and herbicides. In this type of systems a long pipeline rotates around a central pivot point. Center Pivot Sprinklers An automated irrigation system composed of a sprinkler lateral rotating around a pivot point and supported by a number of self-propelled towers.

Most pivots are 14 mile long and irrigate approximately 130 acres. The center pivot irrigation systems INTRODUCTION The center pivot system consists of one single sprayer or sprinkler pipeline of relatively large diameter composed of high tensile galvanized light steel or aluminum pipes supported above ground by towers move on wheels long spans steel trusses andor cables Figure 101. Valley structures are proven to stand up to the toughest loads produced by rough terrain deep furrows and long-span machines.

Center pivot irrigation is a form of overhead sprinkler irrigation consisting of several segments of pipe usually galvanized steel or aluminum with sprinklers positioned along their length joined together and supported by trusses and mounted on wheeled towers. From pivot point to last span Valley engineers constructs and field-tests each center pivot. For more than 60 years Valley center pivot irrigation equipment has earned its reputation as the most trusted brand in the industry.

Pivots can measure up to 12 mile in length and irrigate over 500 acres of crop during a single rotation. Center pivot irrigation equipment is comprised of multiple steel or aluminum pipes. Center pivot irrigation is a mechanized sprinkler system that irrigates crops in a circular pattern.

Consequently the outer spans of pivots have relatively high discharge rates per unit lateral length eg 15 l min 1 m 1 and high instantaneous application rates per unit wetted area. I 963 Qs D x S. Noun center-pivot irrigation a method of irrigation used mainly in the western US in which water is dispersed through a long segmented arm that revolves about a deep well and covers a circular area from a quarter of a mile to a mile in diameter.

Water is delivered to the center or pivot point of the system. Center Pivot Irrigation Water is supplied to sprinkler heads or nozzles at a radius from the center of the field. Centre pivot irrigation systems as the name implies irrigate in a circular fashion around a central pivot point.

It consists of a radial pipe supported by towers that pivot around a central point. Most material 2005 1997 1991 by Penguin Random House LLC. Center pivot irrigation systems.

Precipitation rate from center-pivot systems. They are easily identified from the air as large circular fields. The machine moves in a circular pattern and is fed with water from the pivot point at the center of the circle.

Center Pivots apply water gently to the crop field reducing the risk of puddling or surface runoff which are common disadvantages of using hand moved or big gun sprinkler systems. The system is gaining popularity and has become the most popular irrigation methods for open field crops in the United States. Center pivot irrigation is a crop irrigation technique that involves irrigation equipment which revolves around a pivot.

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