Water Management


  • Water is the most important input for crop production .
  • Water application method depends on soil, climate and financial resources.
  • Water availability is the key factor to decide the water application method.
  • The decision of the farmers to select an appropriate method for water application is influenced by the following:
  • Soil capability - Land use capability.
  • Type of soil ( clay Vs. loamy soil Vs. sandy soil)
  • Cropping system (Paddy system Vs. vegetable cultivation).
  • Rainfall ( assured rainfall Vs. uncertainity Vs no rainfall )
  • Evopotranspiration (wind velocity, temperature and other factors).
  • Water supply sources (canal command or tank command or well command or combination).
  • The available quantity of supply and rate of supply.
  • The cost of water (canal, electric motors or oil engine).
  • The quality of water
  • The size of land holdings (big land holding Vs. small land holding).
  • Availability and cost of labour, local traditions and skill.
  • Ability of farmers to invest and feasibility for mechanization.
  • Facilities for land shaping in relation to soil.
  • Irrigation infrastructure for better conveyance efficiency and application efficiency.


Critical stages for Water requirement

  • Nursery and early vegetative phase requires copious irrigation.
  • Excessive irrigation at seedling stage may cause damping off disease resulting high level of seedling mortality.
  • Stagnation of water at vegetative phase results in poor stand of growth due to build-up of soil borne disease (wilt, root rot) resulting in mortality of plants and poor yield.


Irrigation Methods

  • Among the different methods, basin furrow/border furrows is found to be versatile one, because of its applicability to different soil and climatic conditions.

Irrigarion requirement for Brinjal

Crop stage
No. of irrigation
Days after sowing
Light soils
Irrigation for seed germination
1 0
For establishment
1 2
Seedling phase
3 10,15 and 25
Vegetative phase
3 40,45 and 55
Flowering phase
4 65, 75, 85 and 95
Maturity phase
6 110,120,130,140,150 and160
Heavy soils
Seed germination
1 0
1 4
Seedling phase
2 15 and 25
Vegetative phase
3 35,45, and 60
Flowering phase
3 75, 85 and 95
Maturity phase
5 110,125,140,150 and160

  • Totally about 15- 18 irrigations are required fom seed to seed production of brinjal.
  • The above irrigation schedule may be adjusted according to the weather condition and receipt of rains.