Subject
- Agriculture -- Oregon -- Statistics370
- Farm produce -- Oregon -- Statistics366
- 4-H clubs61
- Agricultural estimating and reporting -- Oregon19
- Fruit -- Diseases and pests -- Control -- Columbia River Valley7
- Knitting7
- Pesticides -- Application -- Columbia River Valley7
- Spraying and dusting in agriculture -- Columbia River Valley7
- Weeds -- Control7
- Catalogs, Publishers' -- Oregon6
- College publications -- Oregon6
- Apples -- Diseases and pests -- Control -- Columbia River Valley5
- Cherry -- Diseases and pests -- Control -- Columbia River Valley5
- Divorce -- Economic aspects -- Oregon5
- Nutrition -- Study and teaching5
- Pear -- Diseases and pests -- Control -- Columbia River Valley5
- Reforestation5
- Agricultural extension work -- Oregon -- Video catalogs4
- Agricultural pests -- Control -- Congresses4
- Agricultural pests -- Control -- Oregon -- Willamette River Valley4