Subject
- Douglas fir7
- Douglas fir -- Oregon -- Growth2
- Plant competition2
- Arctostaphylos -- Growth1
- Douglas fir -- Fertilizers1
- Douglas fir -- Growth1
- Douglas fir -- Moisture1
- Douglas fir -- Oregon -- Quality1
- Douglas fir -- Oregon -- Water requirements1
- Douglas fir -- Oregon, Eastern -- Growth1
- Douglas fir -- Seedlings -- Protection -- Oregon, Eastern1
- Douglas fir -- Seeds1
- Douglas fir -- Spacing -- Oregon1
- Douglas fir -- Weed control1
- Douglas fir -- Weed control -- Oregon, Eastern1
- Douglas fir -- Yields -- Oregon1
- Douglas fir tussock moth1
- Forest ecology1
- Hexazinone1
- Lumbering1