Subject
- Poultry -- Housing6
- Fertilizers -- Oregon5
- Cattle -- Feeding and feeds4
- Lambs -- Feeding and feeds4
- Oregon Agricultural College. Experiment Station4
- Agriculture -- Oregon -- Experimentation3
- Fungicides -- Analysis3
- Insecticides -- Analysis3
- Spraying and dusting residues in agriculture3
- Wheat -- Diseases and pests -- Oregon3
- Agriculture -- Oregon2
- Apple -- Diseases and pests2
- Apple -- Diseases and pests -- Control -- Oregon2
- Apple -- Diseases and pests -- Oregon2
- Avian coccidiosis2
- Borers (Insects) -- Oregon2
- Byturidae -- Northwest, Pacific2
- Canker (Plant disease)2
- Chickens -- Diseases2
- Crop rotation -- Oregon2