Irrigation & Water Use - USDA ERS
2023年9月8日 · Irrigation has enhanced both the productivity and profitability of the agricultural sector. According to the 2017 Census of Agriculture, farms with some form of irrigation accounted for more than 54 percent of the total value of U.S. crop sales, while irrigated land accounted for less than 20 percent of harvested cropland.
Irrigation | Definition, History, Systems, & Facts | Britannica
2024年11月28日 · 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 around the world.
Irrigation Methods: A Quick Look | U.S. Geological Survey - USGS.gov
2018年6月11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.
Understanding Irrigated Agriculture - USDA ERS
The irrigation of agricultural crops accounts for most of the Nation’s water consumption. To better understand irrigation characteristics, such as acreage and water use, USDA conducts the Farm and Ranch Irrigation Survey (FRIS) every 5 years.
Irrigated Agriculture: Technologies, Practices, and Implications for ...
2019年11月12日 · Farmers have access to multiple irrigation technologies that could increase efficient use of water. Irrigation technologies include micro irrigation, which applies small amounts of water close to the plants; sprinkler systems, which spray water through nozzles; and gravity systems, where water floods the field or runs down furrows.
What is the importance of irrigation in agriculture?
2023年4月11日 · Irrigation is a process of applying controlled amounts of water to plants at needed intervals. Irrigation helps to grow agricultural crops, maintain landscapes, and revegetate disturbed soils in dry areas and during periods of less than average rainfall.
6 Types of Irrigation Systems used in Agriculture
2019年11月2日 · Irrigation is a process of application of sufficient water to the soil to support the crop growth requirements. It is a cumbersome process but, with the advancement of technology, many irrigation methods have been developed to meet the specific requirements of crops.
An Overview of Irrigation Techniques & Technology - Successful Farming
2018年5月7日 · On this page, you’ll find an overview of irrigation techniques and how irrigation fits into the U.S. agriculture landscape. In areas where rain doesn’t come regularly or when growing water-hungry crops, farmers are forced to get creative. Irrigation uses groundwater, surface water, and water delivered directly to farms to hydrate thirsty plants.
Irrigation Techniques - National Agricultural Library
Irrigation, or water management, is the process of determining and controlling the volume, frequency and application rate of irrigation water in a planned, efficient manner. On this page, find publications, data, research, tools, and other resources for farmers and researchers.