Irrigation | Definition, History, Systems, & Facts | Britannica
4 天之前 · Irrigation, in agriculture, the artificial application of water to land. Some land requires irrigation before it can be used for any agricultural production. In other places, irrigation is primarily a means to supplement rainfall and serves to increase production.
Irrigation - Wikipedia
Irrigation (also referred to as watering of plants) is the practice of applying controlled amounts of water to land to help grow crops, landscape plants, and lawns. Irrigation has been a key aspect of agriculture for over 5,000 years and has been developed by many cultures
Irrigation Water Use | U.S. Geological Survey - USGS.gov
2019年3月1日 · Irrigation water use includes water that is applied by an irrigation system to sustain plant growth in agricultural and horticultural practices. Irrigation also includes water that is used for pre-irrigation, frost protection, chemical application, weed control, field preparation, crop cooling, harvesting, dust suppression, and leaching salts ...
Irrigation Methods: A Quick Look | U.S. Geological Survey - USGS.gov
2018年8月30日 · Irrigation is the controlled application of water for agricultural purposes through manmade systems to supply water requirements not satisfied by rainfall. Crop irrigation is vital throughout the world in order to provide the world's ever-growing populations with enough food.
What Is Irrigation?- Types, Methods and Importance of Irrigation …
Irrigation is the process of applying water to the crops artificially to fulfil their water requirements. Nutrients may also be provided to the crops through irrigation. The various sources of water for irrigation are wells, ponds, lakes, canals, tube-wells and even dams.
Irrigation Water Use | U.S. Geological Survey - USGS.gov
2018年6月7日 · Throughout the world, irrigation (water for agriculture, or growing crops) is probably the most important use of water (except for drinking and washing a smelly dog, perhaps). Irrigation water is essential for keeping fruits, vegetables, and grains growing to feed the world's population, and this has been a constant for thousands of years.
the purpose of agricultural irrigation and the advantages and ...
2016年1月15日 · Irrigation is defined as the artificial application of water to the soil through various systems of tubes, pumps, and sprayers. Approximately 20% of the world’s agricultural land is irrigated, yet 40% of the world food supply comes from irrigated lands with 70% of the world’s freshwater reserves being used for irrigation purposes.
1. The practice of irrigation - Food and Agriculture Organization
Irrigation in arid areas of the world provides two essential agricultural requirements: (1) a moisture supply for plant growth which also transports essential nutrients; and (2) a flow of water to leach or dilute salts in the soil.
Types, Methods, and Importance of Irrigation (Watering Crops)
Irrigation is the process of watering crops, pasture, and plants by the use of water, which is supplied through pipes, sprinklers, canals, sprays, pumps and other man-made features, rather than purely relying on rainfall. Lets learn about types, methods and importance of irrigation.
Irrigation - Education | National Geographic Society
2023年10月19日 · To irrigate is to water crops by bringing in water from pipes, canals, sprinklers, or other man-made means, rather than relying on rainfall alone. Places that have sparse or seasonal rainfall could not sustain agriculture without irrigation. In areas that have irregular precipitation, irrigation improves crop growth and quality.