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Filtering by: Subject Orchards -- Oregon -- Willamette River Valley -- Planning Advisor Huddleston, J. H. Degree Field Soil Science

Effects of ryegrass residue management on Dayton soil organic carbon content, distribution and related properties

Creator:

Chapin, Michele F.

Abstract:

Total organic carbon, total nitrogen, microbial respiration and enzyme activity (β-glucosidase) were measured on several horizons of a Dayton silt loam (fine, montmorillonitic, mesic, Typic Albaqualf) soil cropped to annual ryegrass under two straw residue management systems. The study evaluated the effects of annual burning of straw residues or annual...

Resource Type:

Masters Thesis

Full Text:

modern phenomenon in the settlement of the Willamette Valley. Fire was used by the Native Americans to
Duration of saturation and redox potentials in selected Willamette Valley soils

Creator:

Austin, Will

Resource Type:

Masters Thesis

Full Text:

the Willamette Valley of Oregon was warmer and drier than normal. The data collected during 1991-1992