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Drip Irrigation

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Drip Irrigation, also known as Trickle Irrigation or Micro Irrigation or Localized Irrigation, is an irrigation method that saves water and fertilizer by allowing water to drip slowly to the roots of plants, either onto the soil surface or directly onto the root zone, through a network of valves, pipes, tubing, and emitters. It is done through narrow tubes that deliver water directly to the base of the plant.

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The system normally requires an operating pressure of 2.0-3.0 bar or 30-45 PSI (200-300 KPa) and a discharge rate of about 0.25-0.25 gallon per hour (1-10 liter/hr).

 

Higher crop yields, better quality of produce, and less input costs result only higher economic returns to the farmers can be achieved by adopting drip irrigation system. This makes the technology more cost effective despite of its high initial capital investment.

Fertigation system of fertilizer application is an important component of the drip irrigation system. There are different techniques of fertigation such as venturi tube, fertilizer tank and hydraulic pumps etc.

Major advantages attached to drip irrigation system over conventional methods are listed as follows:

  • It saves water (50%) and labor input (up-to 30%)
  • Diversification of crop/fruit production is possible.
  • The system improves yields (20 to 100%) and thus improves livelihood.
  • Input cost can be reduced up-to 20 to 35%
  • Intercultural practices can be made easy and timely operated.
  • Quality of produce can be improved many fold.
  • The drip irrigation system is most suitable for undulated topography.