Subject
- Field experiments -- Oregon -- Klamath County15
- Vegetable gardening -- Oregon12
- Agricultural pests -- Control -- Congresses5
- Beans -- Varieties5
- Wheat -- Oregon -- Klamath County5
- Barley -- Oregon -- Klamath County3
- Beans -- Diseases and pests3
- Forest landowners -- Services for3
- Woodlots -- Oregon -- Finance3
- Woodlots -- Oregon -- Management3
- Broccoli -- Growth2
- Broccoli -- Planting2
- Conifers -- West (U.S.) -- Ecology2
- DNA2
- Federal aid to woodlots -- Oregon2
- Fishes -- Oregon -- Willamette River2
- Forest ecology -- West (U.S.)2
- Foresters -- Services for2
- Lake ecology -- West (U.S.)2
- Oil seed2