Subject
- Agriculture -- Oregon -- Statistics5
- Farm produce -- Oregon -- Statistics5
- Calves -- Feeding and feeds1
- Cherry -- Diseases and pests1
- Christmas trees -- Diseases and pests -- Control -- Oregon1
- Contarinia -- Control -- Oregon1
- Douglas fir -- Oregon -- Growth -- Mathematical models1
- Forests and forestry1
- Forests and forestry -- Oregon1
- Forests and forestry -- Planning -- Mathematical models1
- Ocean currents -- Arctic Ocean1
- Ocean temperature -- Arctic Ocean1
- Ocean waves -- Arctic Ocean1
- Ocean-atmosphere interaction -- Arctic Ocean1
- Pacific salmon -- Columbia River Watershed1
- Plantation Simulator Mixed Evergreen (Computer program)1
- Wheatgrasses -- Effect of climate on1
- Wheatgrasses -- Effect of drought on1