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Filtering by: Subject Wheat -- Fertilizers -- Oregon, Eastern Remove constraint Subject: Wheat -- Fertilizers -- Oregon, Eastern Degree Field Soil Science Remove constraint Degree Field: Soil Science

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Long-term effects of tillage, nitrogen, and rainfall on winter wheat yields

Creator:

Camara, Kelli Marie

Abstract:

Winter wheat is commonly grown in dryland cropping systems in the Pacific Northwest region of semi-arid eastern Oregon. For agronomic, economic, and environmental reasons, it is important to understand the long-term sustainability of such dryland systems. The objective of this study was to evaluate the long-term effects of tillage, nitrogen...

Resource Type:

Masters Thesis

Full Text:

. Results demonstrate the importance of rainfall and nitrogen to winter wheat production in eastern Oregon
Winter wheat response to nitrogen, phosphorus, sulfur, and zinc supplied by municipal biosolids

Creator:

Shearin, Todd E.

Resource Type:

Masters Thesis

Full Text:

the dryland wheat-fallow systems of north-central Oregon and eastern Washington. ASSESSMENT OF PLANT
Environmental constraints on the use of anion exchange membranes in dryland wheat

Creator:

Redman, Andrea Elizabeth

Abstract:

Lack of growing season precipitation and the temperate climate in north central Oregon pose challenges to growing spring wheat crops. Phosphate and sulfate fertilization can improve early growth of spring wheat in this region and soil testing aids in determining rates of fertilization. In this study, anion exchange membranes (AEM)...

Resource Type:

Masters Thesis
Nitrogen available to winter wheat as influenced by previous crop in a moist xeric environment

Creator:

Qureshi, Maqsood Hassan

Abstract:

Rotating wheat with other crops is a common practice in the Willamette Valley of western Oregon. Depending upon previous crop and soil type, current N fertilizer recommendations for wheat in the Willamette Valley vary widely. Excessive fertilizer poses environmental risk, whereas lower N inputs than required by the crop represent...

Resource Type:

Dissertation

Full Text:

legumes. Current nitrogen fertilizer recommendations for winter wheat grown in western Oregon are based

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Academic Affiliation

Crop and Soil Science4

Advisor

Christensen, Neil W.1
Payne, William A.1
Sullivan, Dan1
Wysocki, Donald J.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1999 to 2003

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Committee Member

Christensen, Neil1
Dick, Richard1
Hart, John1
Kimerling, Jon1
Mallory-Smith, Carol1
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Creator

Camara, Kelli Marie1
Qureshi, Maqsood Hassan1
Redman, Andrea Elizabeth1
Shearin, Todd E.1

Date

Date range begin – Date range end

Current results range from 1999 to 2002

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Decade

2000-20091
1990-19993

Degree Field

Soil Science[remove]4

Degree Level

Master's3
Doctoral1

Degree Name

Master of Science (M.S.)3
Doctor of Philosophy (Ph.D.)1

Language

English [eng]4

License

All rights reserved1

Non-Academic Affiliation

Oregon State University. Graduate School4

Peer Reviewed

No3

Resource Type

Masters Thesis3
Dissertation1

Rights Statement

Copyright Not Evaluated3
In Copyright1

Subject

Arid regions agriculture -- Oregon, Eastern1
Hard red spring wheat -- Oregon, Eastern1
Ion-permeable membranes1
Nitrogen fertilizers -- Oregon1
Nitrogen fertilizers -- Oregon -- Willamette River Valley1
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