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The following FY 2020 research accomplishments highlight ARS advancements in irrigation, drainage technology, and decision support systems for addressing the challenges associated with agricultural water use. Sub-surface drip reduces seasonal irrigation applications for corn.
Jul 21, 2020 · According to USDA’s Economic Research Service, agriculture accounts for more than 80% of the nation's water consumption. With the need to feed a growing population, scientists from USDA’s Agricultural Research Service (ARS) are looking for ways to safely expand agriculture’s supply of usable water.
- Where Does U.S. Crop Irrigation occur?
- How Has Irrigation Evolved Over time?
- Which Crops Are irrigated?
- What Sources of Water Does Irrigated Agriculture use?
- How Are Crops irrigated?
The 2017 Census of Agriculture reported total U.S. irrigated cropland at 58 million acres. Much of the irrigated land is concentrated in the western U.S. where the production of many crops requires irrigation. Irrigation is also common in the southeastern U.S., particularly along the Mississippi River Valley in Arkansas, Louisiana, and Tennessee as...
The importance of irrigation for U.S. agricultural production has evolved over the past century. Since 1890, irrigated acreage nationwide has grown from less than 3 million acres to over 58 million acres in 2017. Expansion in the nation’s irrigated land was attributable, in part, to federal, State and local water development projects as well as inn...
Irrigation water allocations by crop reflect climate and crop-water consumptive requirements as well as shifting market conditions. Irrigated acres planted in corn and soybeans have expanded in the past 50 years. In 1964, cotton and hay, alfalfa were the leading irrigated crops, with corn and soybeans together accounting for less than 2.5 million i...
Irrigated agriculture relies on both surface water and groundwater to support crop production. According to the 2018 Irrigation and Water Management Survey, more than half of all water applied as irrigation came from surface water with the remaining water obtained from groundwater sources. Surface water-fed irrigation is most common in the western ...
Various methods are used to apply irrigation water to crops, which can be broadly categorized as gravity or pressurized systems. Gravity irrigation systems use on-field furrows or basins to advance water across the field surface through gravity-means only. Pressurized systems apply water under pressure through pipes or other tubing directly to crop...
Sep 9, 2021 · The impacts on water withdrawals are analyzed for each of the basins in the United States. Additionally, the impacts on agricultural production and revenue are analyzed across the United...
- Neal T. Graham, Gokul Iyer, Mohamad I. Hejazi, Son H. Kim, Pralit Patel, Matthew Binsted
- 2021
Aug 29, 2020 · The application of treated wastewater to agricultural soil can affect the structure and functions of the soil microbiome, mainly owing to the introduction of exogenous microorganisms, with effects on some physical-chemical properties of the soil.
- Giuseppe Gatta, Angela Libutti, Anna Gagliardi, Grazia Disciglio, Emanuele Tarantino, Luciano Benedu...
- 2020
May 27, 2020 · WASHINGTON, May 27, 2020 – U.S. Department of Agriculture (USDA) Deputy Under Secretary for Rural Development Bette Brand today announced that the department is investing $281 million in 106 projects to improve water and wastewater infrastructure (PDF, 252 KB) in rural communities in 36 states and Puerto Rico.
Nov 12, 2019 · Nationwide, irrigation consumed 20-30 trillion gallons of water in 2015. Most irrigation is in the West, where water is relatively scarce and precipitation low. The 3 main irrigation technologies—gravity, sprinkler, and micro—can all be modified to be more efficient and save water.
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