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Filtering by: Subject Soils -- Nitrate content Remove constraint Subject: Soils -- Nitrate content Degree Field Soil Science Remove constraint Degree Field: Soil Science

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Inorganic nitrogen and soil biological dynamics in cover crop systems

Creator:

Kauffman, Susan Muna

Resource Type:

Masters Thesis

Full Text:

Soil 76:197-212. Trudgill, S.T., T.P. Burt, A.L. Heathwaite, and B.P. Arkell. 1991. Soil nitrate
Nitrate and water under terraced dryland wheat production in Oregon

Creator:

Strock, Jeffrey S.

Abstract:

Dry land agriculture using summer fallow is a common crop production practice in the Columbia Plateau region of eastern Oregon. Farmed-over level terraces are used to control surface water runoff and soil erosion. More than 70 percent of the average annual precipitation around Pendleton, Oregon (350 - 400 mm) falls...

Resource Type:

Masters Thesis

Full Text:

MATERIALS AND METHODS 30 Location 30 Measurements 31 Soil sampling 31 Soil moisture content 32
Soil factors related to potassium deficiency of stone fruits in the Willamette Valley

Creator:

Selig, Randy S.

Resource Type:

Masters Thesis

Full Text:

, water volume infiltrated, and initial soil water content upon movement of K from surface applied
Soil biological indices and nitrogen availability during a simulated transition from inorganic to organic sources of nitrogen

Creator:

Fauci, Mary F.

Resource Type:

Masters Thesis

Full Text:

matter content and biological activity. These soil were used in a greenhouse study conducted to
Transformations of sulfur in wetland rice soils

Creator:

Islam, M. Mujibul

Resource Type:

Dissertation

Full Text:

aerobic flooding cycles. Figure 7.6. Effect of added organic residues on the ester S content in soil
The potassium status of Eastern and Central Oregon soils

Creator:

Abuzkhar, Ahmed Ali

Abstract:

The potassium status of selected soils from central and eastern Oregon, that have shown a wide range in response from potassium was investigated. The silt and clay minerals were identified using X-ray crystallography. The potassium extracted by water, NH₄OAc, and HNO₃ was evaluated on the total soil and on the...

Resource Type:

Masters Thesis

Full Text:

order of increas- ing clay content, which also placed the soil groups in geographical areas. The
The mobility and plant availability of boron in selected western Oregon soils

Creator:

Parker, David R.

Abstract:

Several crops grown in the Willamette valley of western Oregon respond to applications of boron fertilizers. The acid, highly-leached soils of this area are naturally low in plant-available B. Application of B to the soil annually or at less frequent intervals is currently recommended, but the fate of applied B...

Resource Type:

Masters Thesis

Full Text:

leachate decreased as soil organic matter, clay, and free iron and aluminum oxide content increased. The
Reactions of nickel refining by-products with soils and plants

Creator:

Sheets, Priscilla Jean

Resource Type:

Masters Thesis

Full Text:

plants AN ABSTRACT OF THE THESIS 07 Priscilla jean Sheets in Soil Science for the decree of Raster
Phosphorus response and critical phosphorus levels of winter wheat varieties in western Oregon

Creator:

Sullivan, Dan M. (Dan Matthew), 1954-

Resource Type:

Masters Thesis

Full Text:

ratios of winter wheat at three growth stages. Douglas Co., 1979 11 Soil and leaf content of P, K, and
Phosphorus availability in biosolids-amended soils

Creator:

Choate, Jeff

Abstract:

Quantifying labile phosphorus (P) pools in biosolids is needed to manage biosolids for both agronomic and environmental purposes. Phosphorus indices originated in an effort to protect surface water quality from-non-point-agricultural P inputs. The objectives of this research were to: (1) evaluate soil test components of the western Oregon P index...

Resource Type:

Masters Thesis

Full Text:

as well. Soil P Availability Soils typically range in total P content between about 50 and 3000

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Academic Affiliation

Crop and Soil Science39
Soil Science13
Forest Ecosystems and Society1

Advisor

Dick, Richard P.9
Myrold, David D.8
Bottomley, Peter J.4
Sullivan, Dan M.4
Baham, John3
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Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1975 to 2018

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Committee Member

Baham, John4
Hart, John4
Kleber, Markus4
Bottomley, Peter3
Bottomley, Peter J.3
more Committee Members »

Creator

Keiluweit, Marco2
Abuzkhar, Ahmed Ali1
Al Ismaily, Said S.1
Baumeister, Nancy C.1
Boyle, Stephanie A.1
more Creators »

Contributor

Hatten, Jeffery A.1
Reuter, Ronald J.1
Robinson, Douglas W.1

Date

Date range begin – Date range end

Current results range from 1974 to 2018

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Decade

2010-201911
2000-200912
1990-199918
1980-198910
1970-19791

Degree Field

Soil Science[remove]52
Forest Ecosystems and Society1

Degree Level

Master's39
Doctoral13

Degree Name

Master of Science (M.S.)39
Doctor of Philosophy (Ph.D.)13

File Format

application/pdf3

Language

English [eng]52

License

All rights reserved21

Location

H J Andrews Experimental Forest, Oregon, United States, (Vegetation)1

Non-Academic Affiliation

Oregon State University. Graduate School51

Peer Reviewed

No49

Resource Type

Masters Thesis39
Dissertation13

Rights Statement

Copyright Not Evaluated29
In Copyright23

Subject

Soils -- Nitrogen content7
Soils -- Sulphur content5
Soils -- Carbon content4
Denitrification3
Soil microbiology3
more Subjects »

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