CSREES PNW Region Water Quality Program logo

Fall 2005
PNWWATER 070
Water Protection:

Dryland Nutrient Guidelines Updated

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Logo depicting improved water quality from the cooperation of land grant colleges, NRCS, farmers, and fertilizer industry Over 20,000,000 acres of farmland in the Pacific Northwest is routinely fertilized with nitrogen and/or phosphorus fertilizers. The use of commercial fertilizers allow farmers in teh Pacific Northwest to produce large quantities of grains, fruits, and vegetables which significantly contributes to the region's economy. This food feeds people in the region, throughout the USA, and in many countries across the globe. Fertilizers make this all possible; however, they must be used in a knowlegeable way to prevent undesirable environmental side effects such as the contamination of surface and ground waters in the region.

The land grant institutions in the region (Oregon State University, University of Alaska, University of Idaho, Washington State University) have invested a significant amount of money conducting research over the last 60 years in developing fertilizer rate guidelines for major crops grown in the region. These research-based guidelines, known as fertilizer guides, suggest nitrogen and phosphorus fertilizer application rates based on soil testing information and good science. These guidelines, if followed, will result in maximum economic yields when coupled with good agronomic management practices. In the last 12 months several of the fertilizer guides for dryland crops in the region have been revised to make recommendations more uniform across state lines and to emphasize management practices that result in both maximum economic yields and the protection of surface and ground water quality.

It is important that fertilizer recommendations for nitrogen and phosphorus be updated on a regular basis because of the current emphasis on the protection of water resources in our region. The federal EQUIP (Environmental QUality Incentives Program) and CSP (Conservation Security Program) programs requires the use of sound nutrient management strategies which can be documented through record keeping by landowners. The land grant university generated fertilizer guidelines serve as the source for sound nutrient management and the protection of water quality.

In August, 2004 representatives from the fertilizer industry, the Natural Resources Conservation Service (USDA-NRCS), and the land grant universities met in Moscow, Idaho to discuss current fertilizer guidelines for dryland crops grown in the region. As a consequence of this meeting scientists from the land grant institutions agreed to revise existing guidelines for dryland crops so that recommendations would become more uniform across state lines and to emphasize the importance of water quality protection when providing guidance on the timing and application method of nitrogen fertilizers in the guides.

Washington State University logo University of Idaho logo Oregon State University logo University of Alaska Fairbanks logo Northwest Indian College logo Environmental Protection Agency logo USDA-CSREES logo

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

Fertilizer Guide covers from WSU, UI, and OSU

As a consequence of this meeting fertilizer guides for dryland cereal crops have been published for eastern Oregon, eastern Washington, and northern Idaho into the OnePlan nutrient management strategies developed by NRCS for use in Idaho and Oregon.

A copy of the new Dryland Winter Wheat Eastern Washington Nutrient Management Guide (EB2987) can be obtained from the Washington State University Bulletin Office, 1-800-723-1763, or online at http://pubs.wsu.edu.

Oregon State University has developed/revised five fertilizer guides for cereal crops in eastern Oregon. These guides are all available online at: http://extension.oregonstate.edu/catalog/. The titles of the new guides include:
Winter Wheat in Summer Fallow Systems (low precipitation zone) FG 80E
Winter Wheat and Spring Grains in Continuous Cropping Systems (low precipitation zone) FG 81E
Winter Wheat in Summer Fallow Systems (intermediate precipitation zone) FG 82E
Winter Wheat in Continuous Cropping Systems (intermediate precipitation zone) FG 83E
Winter Wheat in Continuous Cropping Systems (high precipitation zone) FG 84E

The University of Idaho has revised four fertilizer guides for cereal crops in the dryland region of northern Idaho. These guides are all available online at: http://info.ag.uidaho.edu/Catalog/catalog.html. The titles of the revised guides include:
Northern Idaho Fertilizer Guide: Winter Wheat, CIS 453
Northern Idaho Fertilizer Guide: Soft White Spring Wheat, CIS 1101
Northern Idaho Fertilizer Guide: Spring Barley, CIS 920
Northern Idaho Fertilizer Guide: Winter Barley, CIS 954

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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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