Extension Service Site Publications

• (2021) Applying Lime to Raise Soil pH for Crop Production (Western Oregon) Learn how to estimate lime application rate and weigh criteria for choosing liming materials, lime application method and how often to apply lime.
• (2021) Pocket Guide to Grass Seed Pests and Beneficials: Identification, Monitoring, Management
• (2020) Omnivorous Leaftier A ubiquitous and often minor pest of small grains and other seed crops of Western Oregon
• (2020) Extension grass seed study helps improve farm efficiency The most critical steps growers can take to minimize seed shatter is to swath at optimal seed moisture and pay attention to which varieties are most susceptible to shatter.
• (2019) Lime requirement buffer pH update 2019 This fact sheet describes recent discrepancies between SMP and Sikora buffer pH lime requirement tests for western Oregon soils and provides recommendations for what to do. Many soil testing labs in the U.S. are switching from the SMP to the Sikora buffer test for lime requirement in an effort to reduce the use of carcinogenic chemicals in the procedure. Wide-scale testing has shown good correlations between the SMP and Sikora tests, however some soils in western Oregon may not follow this pattern. Some soil testing labs serving Oregon are showing higher buffer test values from the Sikora test than the SMP test, while other labs are not reporting a difference between the two tests. Research is on-going and updated buffer pH recommendations are expected in 2020.
• (2016) Endophyte Toxins in Grass and Other Feed Sources: Risks to Livestock
• (2014) Tall Fescue Grown for Seed: A Nutrient Management Guide for Western Oregon
• (2013) Soil Acidity in Oregon: Understanding and Using Concepts for Crop Production
• (2011) Using Seed Moisture as a Harvest Management Tool
• (2013) Applying Lime to Raise Soil pH for Crop Production (Western Oregon)
• (2012) Postharvest Residue Management for Grass Seed Production in Western Oregon
• (2010) Using the Nitrogen Mineralization Soil Test to Predict Spring Fertilizer N Rate for Soft White Winter Wheat Grown in Western Oregon
• (2010) Evaluating Soil Nutrients and pH by Depth in Situations of Limited or No Tillage in Western Oregon
• (2011) Soft White Winter Wheat (Western Oregon) Nutrient Management Guide
• (2013) Perennial Ryegrass Grown For Seed (Western Oregon) Nutrient Management Guide