Purpose, Necessity & Importance of Irrigation Engineering

Importance of Irrigation Engineering

• In the next 35-45- years, world food production will need to double to meet the demands of increased population.
• 90% of this increased food production will have to come from existing lands. 
• 70% of this increased food production will have to come from irrigated land

Purposes of Irrigation

• Providing insurance against short duration droughts
• Reducing the hazard of frost (increase the temperature of the plant)
• Reducing the temperature during hot spells
• Washing or diluting salts in the soil Softening tillage pans and clods
• Delaying bud formation by evaporative cooling
• Promoting the function of some micro organisms
  
  

Objectives of irrigation

• • To Supply Water Partially or Totally for Crop Need
  • To Cool both the Soil and the Plant
  • To Leach Excess Salts
  • To improve Groundwater storage
  • To Facilitate continuous cropping
  • To Enhance Fertilizer Application- Fertigation