Irrigation is the application of controlled amounts of water to plants at required intervals. Irrigation helps to grow agricultural crops, maintain landscapes, and revegetate disturbed soils in dry areas and through periods of but average precipitation. Irrigation additionally has different uses in crop production, together with frost protection, suppressing weed growth in grain fields and preventing soil consolidation. In distinction, agriculture that depends solely on direct precipitation is brought up as rain-fed or ground farming.
Irrigation systems also are used for cooling farm animal, dirt suppression, disposal of waste material, and in mining. Irrigation is usually studied along side emptying, that is that the removal of surface and sub-surface water from a given space.