![]() ![]() It involves artificially raising the water table to moisten the soil below the root zone of plants. Subirrigation has been used in field crops in areas with high water tables for many years. Drip irrigation delivers water directly to the root zone of plants. Micro-irrigation uses less pressure and water flow than sprinkler irrigation. Micro-irrigation is a system that distributes water under low pressure through a piped network and applies it as a small discharge to each plant. In sprinkler irrigation, water is piped to one or more central locations within the field and distributed by overhead high-pressure water devices. Surface irrigation, also known as gravity irrigation, is the oldest form of irrigation and has been in use for thousands of years. There are several methods of irrigation that differ in how water is supplied to plants. Drainage, which involves the removal of surface and sub-surface water from a given location, is often studied in conjunction with irrigation. It is also used to cool livestock, reduce dust, dispose of sewage, and support mining operations. In addition to these uses, irrigation is also employed to protect crops from frost, suppress weed growth in grain fields, and prevent soil consolidation. Irrigation helps to grow crops, maintain landscapes, and revegetate disturbed soils in dry areas and during times of below-average rainfall. ![]() ![]() Irrigation has been a key aspect of agriculture for over 5,000 years and has been developed by many cultures around the world. Irrigation (also referred to as watering) is the practice of applying controlled amounts of water to land to help grow crops, landscape plants, and lawns. Irrigation of agricultural fields in Andalusia, Spain. ![]()
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