Importance of Drip Irrigation With Merits and Demerits

Drip Irrigation

Drip irrigation is also known as trickle irrigation, is an irrigation method that saves water and fertilizers by allowing water to drip slowly to the roots of plants on the soil surface.


  • To supply the water near the roots as per as possible.
  • To supply the water as per the requirement of crops in specified area.
  • Usage of specified filters to seperate soil particles and waste materials from the water in order to avoid clogging of system.
  • To pump the water through main, submain and lateral pipes with a required pressure.
  • Using fertigation equipment to apply the water soluble fertilizers directly to the plant.


  • Increased water use effiency.
  • Better crop yield.
  • Uniform and better quality of the produce.
  • Less weed growth.
  • Minimum damage of the soil.
  • Labour savings.
  • Soil erosion and nutrient leaching can be reduced.


  • Clogging of drippers.
  • Chemical precipitation.
  • Salt accumulation at wetting front.

Types of Drip irrigation system:

There are two types of Drip irrigation system
1) Online drip irrigation system
2) Inline drip irrigation system


  • When the drippers are placed on the lateral pipes then it is Online drip irrigation system.
  • This is mostly used in horticulture crops.
  • Based upon age of the plant 2,3,4,6,8 drippers are generally used.
  • Drippers are arranged on the laterals in order to wet the area of root zone upto 30 to 50%.


  • When the drippers are placed inside the lateral pipes then it is Inline drip irrigation system.
  • Laterals are arranged in the rows of plants to wet the entire row.
  • Distance between 2 drippers are varies from 30,45,50,60,75,90,100,110 or 120 cms.
  • Drippers are available in various discharges.
  • This system is used in less spaced crop like sugarcane, cotton, turmeric, vegetables etc.
  • Distance between drippers and dripper discharges are depends upon the soil type area of root zone.

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