Subject
- Cattle -- Feeding and feeds4
- Agriculture -- Oregon -- Experimentation3
- Lambs -- Feeding and feeds3
- Oregon Agricultural College. Experiment Station3
- Apple -- Diseases and pests -- Control -- Oregon2
- Crop rotation -- Oregon2
- Spraying and dusting residues in agriculture2
- Swine -- Feeding and feeds2
- Acid soils -- Oregon -- Willamette River Valley1
- Alfalfa -- Irrigation -- Oregon1
- Alfalfa -- Oregon -- Fertilizers1
- Alfalfa as feed1
- Apple -- Diseases and pests -- Oregon1
- Apple -- Postharvest technology1
- Apple -- Reproduction1
- Apple -- Residues1
- Apple industry -- Oregon -- Hood River Valley1
- Avian coccidiosis1
- Beef cattle -- Feeding and feeds1
- Blackberries -- Diseases and pests -- Oregon1