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  2. Irrigation - Wikipedia

    en.wikipedia.org/wiki/Irrigation

    The Indus Valley Civilization developed sophisticated irrigation and water-storage systems, including artificial reservoirs at Girnar dated to 3000 BCE, and an early canal irrigation system from c. 2600 BCE. Large-scale agriculture was practiced, with an extensive network of canals used for the purpose of irrigation. [59] [60]

  3. Center-pivot irrigation - Wikipedia

    en.wikipedia.org/wiki/Center-pivot_irrigation

    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.

  4. Irrigation management - Wikipedia

    en.wikipedia.org/wiki/Irrigation_management

    Irrigation water has a price by which the management costs must be covered. The following tariff (water charge) systems exist: [6] No tariff, the government assumes the costs; Tariff in labor hours, which holds mainly in communal types of management in traditional irrigation systems; Yearly area tariff, a fixed price per ha per year

  5. Drip irrigation - Wikipedia

    en.wikipedia.org/wiki/Drip_irrigation

    Drip irrigation systems distribute water through a network of valves, pipes, tubing, and emitters. Depending on how well designed, installed, maintained, and operated it is, a drip irrigation system can be more efficient than other types of irrigation systems, such as surface irrigation or sprinkler irrigation.

  6. Irrigation sprinkler - Wikipedia

    en.wikipedia.org/wiki/Irrigation_sprinkler

    [citation needed] Sprinkler irrigation is the method of applying water in a controlled manner in way similar to rainfall. The water is distributed through a network that may consist of pumps, valves, pipes, and sprinklers. [1] Irrigation sprinklers can be used for residential, industrial, and agricultural usage.

  7. Agricultural hydrology - Wikipedia

    en.wikipedia.org/wiki/Agricultural_hydrology

    Inf = Irr + Wel, where Irr = surface irrigation from the canal system, and Wel = the irrigation from wells; The field irrigation efficiency (Ff < 1) is: Ff = Era / Inf, where Era = the evapotranspiration of the crop (consumptive use) The value of Era is less than Inf, there is an excess of irrigation that percolates down to the subsoil (Per):

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