Subject
- 4-H clubs887
- Agriculture -- Oregon -- Statistics459
- Farm produce -- Oregon -- Statistics453
- Range plants -- Oregon77
- Spraying and dusting in agriculture -- Oregon -- Willamette River Valley44
- Pesticides -- Application -- Oregon -- Willamette River Valley41
- Forage plants21
- Spraying and dusting in agriculture21
- Child rearing20
- Agricultural estimating and reporting -- Oregon19
- Weeds -- Control19
- Finance, Personal18
- Viticulture -- Oregon17
- Spraying and dusting in agriculture -- Oregon16
- Fruit trees -- Diseases and pests -- Control15
- Grapes -- Diseases and pests -- Control -- Oregon15
- Vegetable gardening -- Oregon15
- Canning and preserving14
- Cover crops -- Oregon14
- Nut trees -- Diseases and pests -- Control14