Improving Nitrogen Management in Pacific Northwest Sugarbeet Production

Effects of Tillage System and Nitrogen Supply on Sugarbeet Production

The sugarbeet industry in the Pacific Northwest is interested in strip tillage (ST) primarily due to the potential savings in tillage costs. This study was conducted to evaluate the use of ST in the Pacific Northwest compared to conventional tillage (CT) practices and to evaluate N requirements of sugarbeet under ST and CT. The effect of tillage method (ST, moldboard plow [MP] system, and chise...

Improving Management Practices for Invasive Cordgrass in the Pacific Northwest: A Case Study of Spartina anglica

Invasive species can radically alter the landscape and crowd out native plants and animals — a problem that costs the United States more than $100 billion each year. Washington state wrestles with dozens of aquatic invasive species including several cordgrasses in the genus Spartina. S. alterniflora was introduced into Willapa Bay about 100 years ago and has colonized over 6000 hectares of prev...

Fire and Climatic Variability in Pacific Northwest: Integrating S Management

Donald McKenzie and David L. Peterson are research biologists at the USDA Forest Servi Station, Pacific Wildland Fire Sciences Lab; Amy E. Hessl is an assistant professor, Departm Geography, West Virginia University; James K. Agee is a professor, College of Forest Reso Washington; John F. Lehmkuhl is a research wildlife biologist, USDA Forest Service, Paci Station, Wenatchee Forestry Sciences L...

Suction Cup Samplers for Estimating Nitrate-Nitrogen in Soil Water in Irrigated Sugarbeet Production

Efforts have increased to measure nitrate losses from farmland under different management practices due to environmental and public concerns over levels of nitratenitrogen (NO3-N) in surface and ground waters. This study evaluated the effect of conventional tillage (CT) and strip tillage (ST) practices and three N application rates on NO3-N concentrations in soil water at a 76 cm depth under ir...

Starlings in the Pacific Northwest