Subject
- Dry farming3
- Dry farming -- Economic aspects -- Oregon -- Wasco County2
- Wheat -- Economic aspects -- Oregon -- Wasco County2
- Arid regions agriculture -- Northwest, Pacific1
- Crop rotation -- Oregon1
- Dry farming -- Northwest, Pacific1
- Dry farming -- Oregon1
- Dry farming -- Oregon -- Harney County1
- Dry farming -- Oregon -- Sherman County1
- Dry farming -- Washington (State)1
- Field experiments -- Oregon -- Harney County1
- Sewage sludge1
- Sewage sludge as fertilizer -- Washington (State)1
- Soil fertility1
- Soil management1
- Squashes1
- Wheat1
- Wheat -- Washington (State)1