Subject
- Swine -- Feeding and feeds4
- Cattle -- Feeding and feeds3
- Fruit -- Oregon -- Field experiments3
- Fungicides3
- Silage3
- Silos3
- Sugar beet -- Oregon3
- Vegetables -- Oregon -- Field experiments3
- Agriculture -- Oregon2
- Apple -- Oregon2
- Flax2
- Insect pests -- Oregon2
- Insecticides2
- Lice2
- Prune -- Oregon2
- Soils -- Oregon2
- Sugar beet -- Oregon -- Field experiments2
- Weeds -- Control -- Oregon2
- Wheat -- Oregon -- Varieties2
- Acid soils -- Oregon1