- Winter wheat -- Varieties -- Oregon, Eastern4
- Winter wheat -- Oregon -- Varieties3
- Winter wheat -- Varieties -- Oregon3
- Winter wheat -- Varieties -- Washington (State), Eastern3
- Soft wheat -- Oregon -- Varieties2
- Soft wheat -- Varieties -- Oregon2
- Winter wheat -- Fertilizers -- Oregon, Eastern2
- Barley -- Varieties -- Oregon, Eastern -- Testing1
- Fertilizers -- Application -- Oregon, Eastern1
- Nitrogen fertilizers -- Oregon, Eastern1
- Nitrogen fertilizers -- Oregon, Eastern -- Computer programs1
- No-tillage -- Oregon, Eastern1
- No-tillage -- Washington (State), Eastern1
- Oats -- Varieties -- Oregon, Eastern -- Testing1
- Phosphatic fertilizers -- Oregon, Eastern1
- Phosphatic fertilizers -- Washington (State), Eastern1
- Plants -- Effect of nitrogen on -- Oregon, Eastern1
- Soft wheat -- Diseases and pest resistance -- Oregon1
- Soft wheat -- Varieties -- Oregon, Eastern1
- Soft wheat -- Varieties -- Washington (State), Eastern1