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Soil test interpretation guide

Creator:: Marx, E. S., Hart, John M. (John Mervyn), 1947-, Stevens, Robert G., and Oregon State University. Extension Service
Abstract:: Regular soil testing is an important element in nutrient management. You can use soil tests as a diagnostic tool or to identify trends through time.
Resource Type:: Technical Report
Full Text:: scientist, Oregon State University; and Bob Stevens, Extension soil scientist, Washington State University

Engineering properties of Oregon and Washington coast range soils

Creator:: Alto, Jalmer V.
Abstract:: Landslides are frequent in the steep forested regions of the Oregon and Washington coastal mountain ranges. The need for forest products has resulted in increasing logging activity in these marginally stable areas. The occurrence of landslides has increased, which in turn has focused greater interest in slope stability management. Of...
Resource Type:: Masters Thesis
Full Text:: Washington Coast Range Soils by Jalmer V. Alto A THESIS submitted to Oregon State University in nartial

Morphology, genesis, and classification of soils forming in recent age tephra deposits from Mt. St. Helens volcano

Creator:: Johnson, Mark E.
Abstract:: The morphology, genesis, and classification of soils forming in multiple tephra deposits of recent age from Mt. St. Helens volcano in southwestern Washington Cascade Mountains was studied. Soils which occupied well drained and poorly drained positions on the landscape were characterized according to their morphology and the results of analyses...
Resource Type:: Masters Thesis
Full Text:: the methods used in the Oregon State University Soil Testing Laboratory (Berg and Gardner, 1978) and

Silicic acid and oxidizable carbon movement in a Walla Walla silt loam as related to long-term residue and nitrogen applications

Creator:: Douglas, Clyde Lee
Abstract:: Intensive cultivation of Walla Walla silt loams (coarse silty, mixed, mesic, typic Haploxeroll) in eastern Oregon and Washington during the past 50 years, has decreased internal soil drainage in the 15 to 40 cm layer. However, no measurements have been made to determine the causes and corrective management for this...
Resource Type:: Dissertation
Full Text:: ) in eastern Oregon and Washington during the past 50 years, has decreased internal soil drainage in

The influence of soil compaction on early conifer growth in the southern Washington Cascades

Creator:: Robbins, Richard William
Abstract:: This study evaluated the effect of soil compaction on the growth of natural regeneration on volcanic ash-influenced soils in the southern Washington Cascades. Growth of 9 to 18 year-old sapling-. sized Ponderosa pine (Pinus ponderosa Laws.) was studied on sites ranging from 915 to 1006 m elevation in an area...
Resource Type:: Masters Thesis

Acidifying soil for crop production west of the Cascade Mountains

Creator:: Oregon State University. Extension Service, Horneck, Donald Arthur, Hart, John M. (John Mervyn), 1947-, Stevens, R., Petrie, S., and Altland, James Elmer, 1973-
Abstract:: Soil acidification sometimes is necessary for optimum plant growth west of the Cascade Mountain Range. Commercial producers of blueberries, azaleas, rhododendrons, and other ornamentals may need to reduce soil pH for optimum production. Soil acidification is best performed prior to planting; it is much more difficult in established plantings. No...
Resource Type:: Technical Report
Full Text:: , Oregon State University; Robert Stevens, Extension soil scientist, Washington State University; Steven

Influence of a sudangrass green manure on microorganisms and early dying of potatoes in two soils

Creator:: Parks, Robin L.
Abstract:: Effect of a sudangrass green manure in two soil types on the activity, populations and community structure of soil microorganisms, populations of Verticillium dahliae in soil and on potato roots, and potato early dying, were evaluated in a field microplot experiment in the Columbia Basin. Potato cv. Russet Burbank was...
Resource Type:: Masters Thesis
Full Text:: 1996 and 1997, and by 43.0 % in the Washington soil in 1996 only. Neither green manure or soil type

Primary succession on a receding glacier forefront : with special emphasis on root-colonizing fungi

Creator:: Jumpponen, Ari
Abstract:: Plant succession is among the fundamental concepts in ecology. Studies addressing plant recruitment, successional mechanisms, and the role of root-colonizing fungi with focus on dark-septate endophytes (DSE) were conducted in the laboratory and on the forefront of receding Lyman Glacier (North Cascade Range, Washington, U.S.A.). Primary successional studies primarily focus...
Resource Type:: Dissertation

Acidifying soil for blueberries and ornamental plants in the yard and garden west of the Cascade Mountain Range in Oregon and Washington

Creator:: Oregon State University. Extension Service, Hart, John M. (John Mervyn), 1947-, Horneck, D., Stevens, R., Bell, Neil (Neil Charles), 1961-, and Cogger, Craig George, 1950-
Abstract:: Rhododendrons and blueberries are popular plants in home gardens in western Oregon and Washington. Both are easy to grow in most gardens, but problems with growth can occur if the soil is not sufficiently acidic. Even in the naturally acidic soil west of the Cascade Mountains, soil often is not...
Resource Type:: Technical Report
Full Text:: counties, Oregon State University; Robert Stevens, Extension soil scientist, Washington State University

Soil carbon and nitrogen in old-growth forests in western Oregon and Washington

Creator:: Remillard, Suzanne Marie
Abstract:: Soil organic carbon (SOC, kg C m-2) is an important component in evaluating global C stores. The nitrogen (TN, kg N m"2) cycle is closely linked to C and understanding its role is also important. Contents and distributions of SOC and TN in soil profiles, to 1-meter depth, were estimated...
Resource Type:: Masters Thesis
Full Text:: Washington by Suzanne Marie Remillard A THESIS submitted to Oregon State University in partial

ScholarsArchive@OSU

Soil test interpretation guide

Engineering properties of Oregon and Washington coast range soils

Morphology, genesis, and classification of soils forming in recent age tephra deposits from Mt. St. Helens volcano

Silicic acid and oxidizable carbon movement in a Walla Walla silt loam as related to long-term residue and nitrogen applications

The influence of soil compaction on early conifer growth in the southern Washington Cascades

Acidifying soil for crop production west of the Cascade Mountains

Influence of a sudangrass green manure on microorganisms and early dying of potatoes in two soils

Primary succession on a receding glacier forefront : with special emphasis on root-colonizing fungi

Acidifying soil for blueberries and ornamental plants in the yard and garden west of the Cascade Mountain Range in Oregon and Washington

Soil carbon and nitrogen in old-growth forests in western Oregon and Washington

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