Irrigation

Irrigation is an artificial application of water to the soil, usually to assist with the growth of crops. In crop production, it is mainly used in dry areas and in periods of rainfall shortfalls, but also to protect plants against frost. Additionally, irrigation helps suppress weed growing in rice fields. By contrast, agriculture that relies only on direct rainfall is referred to as rain-fed farming. Irrigation is often studied together with drainage, which is the natural or artificial removal of surface and sub-surface water from a given area

Irrigation is also a term used in the medical/dental fields and refers to flushing and washing out anything with water or another liquid. This article focuses on irrigation of the soil for agricultural purpose