Subject
- Spraying and dusting in agriculture -- Economic aspects2
- Apples -- Economic aspects -- Oregon -- Hood River Valley1
- Beans -- Economic aspects -- Oregon -- Willamette River Valley1
- Beets -- Economic aspects -- Oregon -- Willamette River Valley1
- Black raspberries -- Economic aspects -- Oregon -- Willamette River Valley1
- Boysenberries -- Economic aspects -- Oregon -- Willamette River Valley1
- Carrots -- Economic aspects -- Oregon -- Willamette River Valley1
- Crested wheatgrass -- Economic aspects -- Oregon, Eastern1
- Crested wheatgrass -- Oregon, Eastern -- Costs1
- Dairy cattle -- Breeding -- Societies, etc. -- Economic aspects1
- Dairy farming -- Economic aspects -- Oregon -- Tillamook County1
- Dairying -- Economic aspects -- Oregon -- Willamette River Valley1
- Dry farming -- Economic aspects -- Oregon -- Wasco County1
- Fallowing -- Economic aspects -- Oregon -- Gilliam County1
- Fallowing -- Economic aspects -- Oregon -- Sherman County1
- Farm tractors -- Economic aspects -- Oregon -- Marion County1
- Loganberries -- Economic aspects -- Oregon -- Willamette River Valley1
- Milk yield -- Economic aspects1
- Orchards -- Economic aspects -- Oregon -- Hood River Valley1
- Pear -- Economic aspects -- Oregon -- Hood River Valley1