Irrigation and Drainage Engineering covers all phases of irrigation, drainage engineering, hydrology, and related water management subjects such as watershed management, weather modification, water quality, groundwater, and surface water.
Irrigation has been a central feature of agriculture for over 5000 years and was the basis of the economy and society of numerous societies. Irrigation can be termed as the artificial process of applying water to the soil to help in growing agricultural crops or maintaining the landscapes when there is a shortage of natural water by rain.
Irrigation is often studied together with drainage, which is the natural or artificial removal of surface and sub-surface water from a given area. water is required for agriculture. sometimes this water requirement is fulfilled by rain, but there are some dry areas where irrigation is the only process by which water is supplied to crops.
Irrigation and Drainage Systems Engineering is important since it helps determine future Irrigation expectations.