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Spring 2008
PNWWATER 134
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Ag irrigation systemWith the arrival of sunny days and blue skies comes the scorching hot days of summer in the desert. Though most people appreciate water to sustain crops and lawns, farmers and area residents sometimes underplay the importance of irrigation management. That is where a new web site comes in. Created at Washington State University’s Irrigated Agriculture Research and Extension Center (IAREC) in Prosser, WA this unique site has been developed to assist with everything irrigation.

“The vision is to be one-stop shopping for all irrigation-related questions,” says Troy Peters, irrigation engineer and extension irrigation specialist at IAREC. “This Web site is to help farmers be more productive and profitable by their irrigation management and, at the same time, improve the environment.” The project began about a year ago. Troy moved here from Texas, where he conducted irrigation related research for the U.S. Department of Agriculture’s Ag Research Service.

Brent Etzel created and designed the Web site. Troy provides content. “The Web site is in the beginning stages,” says Troy. “It will contain a lot of information, but the main purpose is the calculator help. “It will have a lot of calculation tools. For example, someone may say, ‘I have this much pressure and this nozzle size; what’s my application rate?’ Or ‘how long do I leave sprinklers on to meet a crop’s needs?’”

The site’s calculation tools remove the guesswork from good irrigation management. Tools include unit conversions for flow rate, area, distance, time, volume, pressure, power, and precipitation. Other tools include:

  • Required flow rate onto a specified area to meet maximum water use rate requirements of a particular crop.
  • Pipeline pressure loss, which calculates the pressure or friction loss along a given length of a pipeline with a specified diameter.
  • Water depth, applied to a specified area over a specified time span based on the given flow rate onto the field.
  • Sprinkler application rate.
  • Drip rate.
  • Required water pump horsepower.
  • Water application rate.

“Hopefully, our tools and links to other programs will enable people to download to their own computers to do their own irrigation scheduling,” says Troy. The site is for farmers and urbanites complete with residential irrigators and agricultural irrigators frequently asked questions. For lawn and garden irrigators, questions are answered about how long to leave water on, designing and installing drip irrigation systems, and the features to look for in an irrigation timer. “Most people water their grass, but many set sprinkler systems and don’t change them throughout the season,” says Troy. “This isn’t the best practice.” He notes different amounts of water are needed at different times of the year. For agricultural irrigators, questions range from how much water specific crops need to evapotranspiration, and which irrigation systems best fit certain soil types to water quality issues.

 
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Pacific Northwest Regional Water
Quality Coordination Project
Partners

Land Grant Universities
Alaska
Cooperative Extension Service
Contact Fred Sorensen:
907-786-6311
http://www.uaf.edu/ces/water/index.html
University Publications:
http://www.alaska.edu/uaf/ces/publications/

Idaho
University of Idaho
Cooperative Extension System
Contact Bob Mahler: 208-885-7025
http://www.uidaho.edu/wq/wqhome.html
University Publications:
http://info.ag.uidaho.edu/Catalog/catalog.html

Oregon
Oregon State University
Extension Service
Contact Mike Gamroth: 541-737-3316
http://extension.oregonstate.edu/
University Publications:
http://extension.oregonstate.edu/catalog/

Washington
Washington State University
WSU Extension
Contact Bob Simmons:
360-427-9670 ext. 690
http://wawater.wsu.edu/
University Publications:
http://pubs.wsu.edu/

Northwest Indian College
Contact Michael Cochrane: 360-392-4299
mcochrane@nwic.edu or
http://www.nwic.edu/

Water Resource Research Institutes
Water and Environmental Research
Center (Alaska)
http://www.uaf.edu/water/

Idaho Water Resources
Research Institute
http://www.boise.uidaho.edu/

Institute for Water and Watersheds
(Oregon)
http://water.oregonstate.edu/

State of Washington
Water Research Center
http://www.swwrc.wsu.edu/

Environmental Protection Agency
EPA, Region 10
The Pacific Northwest
http://www.epa.gov/r10earth/

Office of Research and Development,
Corvallis Laboratory
http://www.epa.gov/wed/

For more information contact
Jan Seago at 206-553-0038 or
seago.jan@epa.gov

The Project
Land Grant Universities, Water Research Institutes and EPA Region 10 have formed a partnership to provide research and education to communities about protecting or restoring the quality of water resources. This partnership is being supported in part by the USDA’s Cooperative State Research, Education and Extension System (CSREES).

Our Goal and Approach
The goal of this Project is to provide leadership for water resources research, education and outreach to help people, industry and governments to prevent and solve current and emerging water quality and quantity problems. The approach to achieving this goal is for the Partners to develop a coordinated regional water quality effort based on, and strengthening, individual state programs.

Our Strengths
The Project promotes regional collaboration by acknowledging existing programs and successful efforts; assessing program gaps; identifying potential issues for cross-agency and private sector collaboration, and developing a clearinghouse of expertise and programs. In addition, the Project establishes or enhances partnerships with federal, state and local environmental and water resource management agencies, such as by placing a University Liaison within the offices of EPA Region 10.

“What’s important about good irrigation practices is that we can save money, divert less water from the river and pump less, so we’re saving money,” says Troy.

The site’s completion date is targeted for the second week of June, though much of it is already finished and available for public use. “I have a lot of great collaborators here that do research on crops, soils, diseases, etc.,” says Troy. “I pull from their knowledge.”

Tutorials are a useful feature of the web site, including lessons about the basics of plant-soil-water relations. Irrigation links may be useful to some, and include irrigation organizations, irrigation information, additional calculators and software, Northwest agriculture weather networks, Washington and other states’ irrigation Extension sites, journals, and publications.

“There is a need for irrigation information to be disseminated,” says Troy. “The Web is where most people go for it. We used to be able to go out and talk with farmers, but now they look on the Web. “We want to make sure this information is available. It’s just a logical thing to do. It’s on-demand. People can get the information quickly and comfortably.”

The new web site location at: http://dns1.prosser.wsu.edu/irrigation/index.php.

Reprinted from The Benton REA Ruralite, June 2007, Audra Hoefer

This irrigated water management web site will be expanded over the coming months to meet irrigation management needs for the entire region—Alaska, Idaho, Oregon, and Washington. We will keep you posted as this site adds regional content.

National Water Quality Program Areas

The four land grant universities in the Pacific Northwest have aligned our water resource extension and research efforts with eight themes of the USDA's Cooperative State Research, Education, and Extension System.

  1. Animal Waste Management
  2. Drinking Water and Human Health
  3. Environmental Restoration
  4. Nutrient and Pesticide Management
  5. Pollution Assessment and Prevention
  6. Watershed Management
  7. Water Conservation and Agricultural Water Management
  8. Water Policy and Economics
CSREES is the Cooperative States Research, Education and Extension Service, a sub-agency of the United States Department of Agriculture, and is the federal partner in this water quality program.

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Download the informational PDF flyer here

A cooperative program consisting of the USDA Cooperative State Research, Education, and Extension Service
and
the Land Grant Colleges and Universities.

- a Regionally-Based National Network -

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USDA Cooperative State Research, Education, and Extension Service
CSREES PNW Regional Water Quality Program