Subject
- Beef cattle -- Feeding and feeds1
- Beef cattle -- Prices1
- Beef cattle -- United States1
- Burning of land -- Oregon1
- Corn -- Thailand1
- Corn products industry -- Thailand1
- Dissertations, Academic -- United States -- Bibliography -- Catalogs1
- Grass seed industry -- Oregon -- Willamette River Valley1
- Oregon State University -- Dissertations -- Bibliography -- Catalogs1
- Pest -- Control -- Environmental aspects -- Oregon -- Willamette River Valley.1
- Prescribed burning -- Economic aspects -- Oregon -- Willamette River Valley1