An official website of the United States government.
The .gov means it’s official.
Federal government websites always use a .gov or .mil domain. Before sharing sensitive information online, make sure you’re on a .gov or .mil site by inspecting your browser’s address (or “location”) bar.
This site is also protected by an SSL (Secure Sockets Layer) certificate that’s been signed by the U.S. government. The https:// means all transmitted data is encrypted — in other words, any information or browsing history that you provide is transmitted securely.
USDA. NAL. Water and Agriculture Information Center.
Publications on irrigation in general and as related to nitrogen, phosphorus, pathogens, pesticides, erosion and sedimentation, and fish and wildlife; irrigation water quality; polyacrylamide (PAM) and soils, etc. from the AGRICOLA database.
USDA Economic Research Service
Facts and figures about irrigation in the United States.
USDA. NRCS. West National Technology Support Center.
Serves as a clearinghouse for information on irrigation and natural resources conservation. Find models, handbooks, manuals, training and other materials.
USDA. Agricultural Research Service.
"The mission of the Water Management Research Unit is to develop irrigation and drainage water management practices and methods that use water efficiently, improve agricultural productivity and sustainability, and reduce negative environmental impacts of irrigated agriculture in semi-arid and arid areas; and to develop chemical and non-chemical alternatives to soil fumigation with methyl bromide."
Washington State University. Agricultural, Human, and Natural Resource Studies.
Produced by the Washington State Cooperative Extension Service.
Food and Agriculture Organization of the United Nations and others.
"The Food and Agriculture Organization of the United Nations (FAO) together with the World Health Organization (WHO), the United Nations Environment Programme (UNEP), the United Nations University Institute for Water, Environment and Health (UNU-INWEH) and the UN-Water Decade Programme on Capacity Development (UNW-DPC), in collaboration with the International Commission on Irrigation and Drainage (ICID) and the International Water Management Institute (IWMI), have initiated a Capacity Development Project on the Safe Use of Wastewater in Agriculture." This site provides publications and videos on the topic.
State of California. Department of Water Resources. Office of Water Use Efficiency.
"Assists California's irrigators manage their water resources efficiently -- saving water, energy, and money."
DOI. Bureau of Reclamation.
"Due to a significant reduction in program funding in FY2005, the majority of program activities were suspended. The website provides current data for other associated programs, research activities, and the status of each project in FY2005. This serves as an invaluable foundation for ongoing research activities and future remediation in these project areas."