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Irrigation is the replacement or supplementation of rainfall with water from another source in order to grow crops or plants. In contrast, agriculture that relies only on direct rainfall is sometimes referred to as dryland farming.

Overview


The water source for irrigation may be a nearby or distant body of liquid or frozen water such as a river, spring, lake, aquifer, well, or snowpack. Depending on the distance of the source and the seasonality of rainfall, the water may be channelled directly to the agricultural fields or stored in reservoirs or cisterns for later use. In addition, the "harvesting" of local rain that falls on the roofs of buildings or on nearby unfarmed hills and its use to supplement the rain that falls directly on farmed fields also involves irrigation.

Various types of irrigation techniques differ in how the water obtained from the source is distributed within the field. In general, the goal is to supply the entire field uniformly with water, so that each plant has the amount of water it needs, neither too much nor too little.

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500 Controlled Irrigation - South African company offering irrigation design, supply, installation, equipment and related products.

Glen Farrow UK Ltd. - Full irrigation design and installation for landscape and sports turf as well as heating and cooling for growers. Located in Spaulding, Lincolnshire, United Kingdom.
Meta Description: [ Glen Farrow UK LTD - Supply, Design & Installation of Irrigation, Pumps, Poly-Tunnels, Heating, Ventilation & Gas Systems to Agriculture, Horticulture, Landscape, Sports/Leisure, Industry and Trade ]

Irrigation-Mart - Supplier of irrigation and drainage products. Drip tape, plastic mulch, pumps, blue-stripe hose, Rainbird sprinklers, filters, injectors, valves, culverts, stakes, twine. Certified designers and engineers. Ruston, Louisiana.
Meta Description: [ Irrigation-Mart, complete irrigation systems and components. Professional Designer/Engineer. We Savvy Irrigation. 1-800-SAY-RAIN. ]

K.B. White Company Inc. - Irrigation design consultant specializing in golf courses, athletic fields, and commercial sites.
Meta Description: [ K.B.White Company Inc. ]

Turf Feeding Systems - Developing golf, turf grass, and landscape fertigation technologies since 1987. Houston, Texas
Meta Description: [ Turf Feeding Systems (TFS) is the unquestioned world leader in the manufacturing of fertigation systems for the golf industry with seventeen years of experience - with over 1,500 injection systems on golf courses across the U.S. and around the world. TFS also has many systems installed at casino... ]

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