Washington State University

Puyallup Research & Extension Center

Program Impacts

Washington State University Puyallup Research and Extension Center is strategically located to meet the needs of the growing communities in Western Washington. Established in 1894 the Center has played an integral role in providing education, research and information to the residents of Washington State. Below are some examples of the Center's impact.

Biosolids Nitrogen Availability Predictor for Different Climate Zones

Soil scientists Craig Cogger and Andy Bary collaborated with researchers from Oregon, Arkansas, Michigan, and Virginia to develop new national guidelines for biosolids applications based on nitrogen supply. Results of the 2-year field, laboratory, and modeling project showed that most types of biosolids have a similar capacity to supply nitrogen, but the rate of nitrogen release varies with climate across the United States. The researchers developed a series of easy-to-use maps predicting biosolids nitrogen availability in different climate zones. 

Use of Biosolids for Dryland Farming

A research and extension team at WSU Puyallup, Craig Cogger, Andy Bary, Jim Kropf, and Dan Sullivan, who is now at OSU, conducted the initial research on biosolids use for dryland wheat production in Washington State. Municipalities from both sides of the Cascades now supply their biosolids as a fertilizer for dryland grain production. In Douglas County alone, more than 20,000 acres have been fertilized with biosolids in the last 4 years. More than 100 farmers and landowners have used biosolids in Douglas County. More »

Outcomes from Compost Facility Operators Training

Each year 30 students from the Pacific Northwest and beyond attend a 5-day, intensive hands-on compost operator's training workshop held at WSU Puyallup. Alumni of the class have successfully established and upgraded commercial and municipal composting facilities using a variety of waste streams in a variety of environments. These include a comprehensive composting facility at the state prison in Forks, and a seafood waste composting facility under development in Thurston County. More »

Pest Management - More Tools Available

Washington State Pest Management Resource Service, managed by Catherine Daniels, identifies pest management issues in Pacific Northwest minor crops and facilitates communication between growers, Environmental Protection Agency (EPA), and United States Department of Agriculture on chemical use practices. Through these efforts EPA is provided with real use data for its risk evaluations. As a result, growers have more tools available to aid them in Integrated Pest Management implementation. More »

Puyallup Research and Extension Center, 2606 West Pioneer, Puyallup WA 98371-4900, 253-445-4500, Contact Us