Subject
- Agriculture -- Oregon5
- Forests and forestry4
- Vegetables -- Oregon -- Field experiments4
- Cattle -- Feeding and feeds3
- Forests and forestry -- United States3
- Fruit -- Oregon -- Field experiments3
- Oregon State Agricultural College3
- Oregon State Agricultural College. Experiment Station3
- Sugar beet -- Oregon3
- Swine -- Feeding and feeds3
- Agriculture -- Oregon -- Experimentation2
- Agriculture -- Study and teaching -- Oregon2
- Flax2
- Fungicides2
- Insect pests -- Oregon2
- Lice2
- Prune -- Oregon2
- Railroad ties2
- Soils -- Oregon2
- Sugar beet -- Oregon -- Field experiments2