Subject
- Oregon State University -- Curricula28
- Cover crops -- Oregon12
- Agriculture -- Research -- On-farm3
- Agriculture -- Research -- Oregon3
- Agriculture -- Research -- Washington (State)3
- Farm management -- Oregon -- Case studies3
- Farm management -- Washington (State) -- Case studies3
- Insects -- Northwest, Pacific3
- Beetles -- Northwest, Pacific2
- Herbicides2
- Vetch -- Oregon2
- Weeds -- Control2
- AIDS (Disease) in women -- Uganda -- Kampala District1
- AIDS (Disease) in women -- Uganda -- Masaka District1
- Academic achievement1
- Agricultural conservation -- Bibliography1
- Agricultural conservation -- Oregon -- Willamette River Valley -- Economic aspects1
- Agricultural conservation -- Oregon -- Willamette River Valley -- Evaluation1
- Agricultural ecology -- Bibliography1
- Agricultural pests -- Integrated control1