Subject
- Lolium perenne3
- Burning of land -- Oregon -- Willamette River Valley2
- Crop residue management -- Oregon -- Willamette River Valley2
- Grasses -- Seeds -- Yields -- Oregon -- Willamette River Valley2
- Red fescue -- Oregon -- Willamette River Valley -- Physiology2
- Ryegrasses2
- Annual bluegrass -- Control -- Oregon -- Willamette River Valley1
- Crop residue management1
- Grasses -- Seeds -- Development1
- Growth (Plants) -- Regulation1
- Hops -- Breeding1
- Hops -- Genetics1
- Lolium perenne -- Oregon -- Willamette River Valley -- Yields1
- Nitrogen fertilizers1
- Paclobutrazol1
- Plant growth inhibiting substances1
- Plant regulators1
- Plant regulators -- Foliar application -- Oregon -- Willamette River Valley1
- Plant regulators -- Oregon -- Corvallis1
- Plant regulators -- Oregon -- Willamette River Valley1