Objectives of Irrigation
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1. To add water to soil for supplies the moisture essential for plant growth.
2. To provide crop insurance against short period of drought.
3. To cool soil and atmosphere, there by making more favorable environment for plant growth.
4. To washout salts from the root zone of plant.
5. To dissolve the plant nutrients present in soil.
6. Regulating the temperature of the plant system.
7. To reduce the hazard of soil piping (Cracking).
8. To soften the tillage pan or facilitate tillage operation.
9. To reduce the hazard of frost.
10. To supplement the natural precipitation.