The term you are looking for is "irrigation." Irrigation is the process of artificially applying water to land in order to assist in the growing of crops, maintain lawns and landscapes, and help revive dry soil during periods of inadequate rainfall. It is an essential practice in agriculture, especially in arid and semi-arid regions where natural rainfall may be insufficient for crop production. Irrigation systems can include various methods such as surface irrigation, subsurface irrigation, and sprinkler systems, each designed to efficiently distribute water to the crops or plants based on their specific needs.