Subject
- 4-H clubs72
- Reforestation -- Oregon45
- Forests and forestry -- Research -- Oregon44
- Agriculture -- Oregon -- Statistics26
- Farm produce -- Oregon -- Statistics25
- Grapes -- Diseases and pests -- Control -- Oregon11
- Spraying and dusting in agriculture -- Oregon11
- Viticulture -- Oregon11
- Fungicides -- Oregon10
- Pesticides -- Application -- Oregon10
- Gardening for people with disabilities7
- Dairy cattle -- Feeding and feeds5
- Soft wheat -- Varieties -- Northwest, Pacific5
- Vegetable gardening -- Oregon5
- Winter wheat -- Varieties -- Northwest, Pacific5
- Agricultural estimating and reporting -- Oregon4
- Cover crops -- Oregon4
- Dwellings -- Energy conservation4
- Dwellings -- Insulation4
- Forests and forestry -- Measurement4