Subject
- Bluegrasses -- Effect of soil moisture on -- Oregon -- Willamette River Valley1
- Bluegrasses -- Oregon -- Willamette River Valley1
- Digital soil mapping1
- Extracellular enzymes1
- Invasive plants -- Effect of soil moisture on -- Oregon -- Willamette River Valley1
- Peptidase1
- Proteolysis1
- Proteolytic enzymes1
- Waterlogging (Soils) -- Oregon -- Willamette River Valley1