Subject
- Agriculture -- Oregon14
- Apple industry -- Oregon -- Hood River Valley -- Cost of operation8
- Pear industry -- Oregon -- Hood River Valley -- Cost of operation8
- Agricultural experiment stations -- Oregon7
- Oregon Agricultural Experiment Station7
- Fruit-culture -- Oregon -- Hood River Valley -- Cost of operation6
- Cherry -- Diseases and pests -- Control -- Oregon4
- Cherry fruit-fly -- Control -- Oregon4
- Corn -- Varieties -- Oregon, Western -- Evaluation4
- Dairy cattle -- Feeding and feeds4
- Agriculture -- Research -- Oregon3
- Corn -- Varieties -- Oregon, Western -- Field experiments3
- Curly top disease -- Northwest, Pacific3
- Dairying -- Oregon -- Costs3
- Hazelnuts -- Diseases and pests -- Control -- Oregon3
- Milk yield -- Economic aspects -- Oregon3
- Pea-weevil -- Control -- Northwest, Pacific3
- Potatoes -- Oregon -- Marketing3
- Rural poor -- Oregon3
- Sprinkler irrigation3