Associate Professor - Management of nutrients from organic sources

Mailing Address:

Department of Crop and Soil Science
3017 Agricultural and Life Science Building
Oregon State University
Corvallis, OR 97331

Office: Agricultural and Life Science 3049
Phone: 541-737-5715
Fax: 541-737-5725
E-Mail:

Department Website: Department of Crop and Soil Science
Vita: Short

Education:

Ph.D. – Soil Science, Kansas State University, 1990
M.S. – Soil Science, Oregon State University, 1981
B.S. – Horticulture, Oregon State University, 1977

Research and Extension Program Objectives:

1. Develop value-added uses for organic materials.
2. Assist farmers and agri-business in implementing effective, and economical nutrient management practices.
3. Promote environmental stewardship of soil, water and energy resources.

Graduate Students:

• Ryan Costello
• Jess Holcomb

Ongoing Research and Extension Projects:

• OSPUD Participatory Organic Potato Project
• Nitrogen Management for Organic Vegetable Production
• Organic Blueberry Systems Research

Cooperative regional and national projects:

• SERA-17
• WERA-103
• Organic Nutrient Management and Water Quality

Honors and Awards:

1999. Development of an outstanding biosolids education and training program. U.S. Environmental Protection Agency. Beneficial Use of Biosolids Award Program.

1999. Special recognition award: education and outreach. Oregon Association of Clean Water Agencies.

2008. James and Mildred Oldfield/E.R. Jackman Team Award. OSPUD: Organic Potato Project.

Publications:

Topical Extension resources

Soil and Water Extension Publications

Nutrient Management

• Nitrogen Uptake and Utilization by Pacific Northwest Crops (pdf) - PNW 513
• Nutrient Management for Onions in the Pacific Northwest (pdf) - PNW 546
• Post-harvest Soil Nitrate Testing for Manured Cropping Systems West of the Cascades (pdf) - EM 8832-E
• Monitoring soil nutrients using a management unit approach (pdf) - PNW 570-E
• Agricultural phosphorus management using the Oregon/Washington Phosphorus Indexes. (pdf) (html) EM 8848-E
• Estimating Nitrogen Mineralization in Organic Potato Production (pdf) - EM 8949-E
• Nutrient Management Guide for Silage Corn in Western Oregon (pdf) - EM 8978-E
• Managing Irrigation Water Quality for Crop Production in the Pacific Northwest (pdf) - PNW 597-E
• Managing Salt-Affected Soils for Crop Production (pdf) - PNW 601-E

Manure

• Date, Rate, and Place: The Field Book for Dairy Manure Applicators (pdf) - PNW 506
• Fertilizing with Manure (pdf)- PNW 533
• Nutrient Management for Dairy Production: Which Test Is Best? Customizing Dairy Manure Nutrient Testing (pdf) - PNW 505
• Estimating Plant-Available Nitrogen from Manure (pdf) - EM 8954-E
• Manure Application Rates for Forage Production (pdf) - EM 8585-E

Biosolids

• Biosolids Recycling in Oregon (pdf) - EC 1471
• Fertilizing with Biosolids (pdf) - PNW 508-E
• Spreader Calibration Worksheet for Biosolids Application
• Toward Quality Biosolids Management
  • A Trainer's Manual (PDF)
  • A Trainer's Manual (HTML)
• Worksheet for Calculating Biosolids Application Rates in Agriculture - PNW 511-E

Small Farms and Gardens

• Fertilizing with Yard Trimmings
• Improving garden soils with organic matter
• Fertilizing with Manure
• Backyard composting - Washington State University EB 1784-E
• Mulching Woody Ornamentals with Organic Materials (pdf) - EM 1629-E
• Reducing Lead Hazard in Home Gardens and Landscapes (pdf) - EC 1616-E