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Filtering by: Creator Selker, F. Remove constraint Creator: Selker, F. Subject Cover crops -- Oregon Remove constraint Subject: Cover crops -- Oregon

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Assessment of variability and monitoring methods for leaching under cover crop management

Creator:

Hess, Mario

Abstract:

The contamination of ground water resources represents a serious problem and a prominent threat to the health of our society. This study focuses on the leaching of inorganic anions as a function of agricultural practices under natural field conditions. In order to enhance the understanding of such leaching processes, this...

Resource Type:

Masters Thesis

Full Text:

leben kann. Acknowledgments First of all, I want to thank Dr. John S. Selker, my advisor, for his
Effects of winter cover crops following potato (Solanum tuberosum L.) on soil nitrate and soil fertility in the Columbia Basin

Creator:

Fernando, M.F. Sydney W.

Resource Type:

Dissertation

Full Text:

AN ABSTRACT OF THE THESIS OF M. F. Sydney W. Fernando for the
Cover crop dry matter and nitrogen accumulation in Western Oregon

Creator:

Sattell, Robert, Buford, Thomas, Murray, Helene, Dick, Richard, McGrath, Daniel M. (Daniel Morton), and Oregon State University. Extension Service

Abstract:

Cover crop selection and management depend on many factors, among them the cover crop’s ability to accumulate dry matter (i.e., residues) and nitrogen (N). Dry matter provides energy for soil organisms, contributes to soil organic matter, improves tilth, and acts as a sink for nutrients.

Resource Type:

Technical Report

Full Text:

Brandi-Dohrn, F., R.P. Dick, M. Hess, S.M. Kaufman, D.D. Hemphill, and J.S. Selker. Nitrate leaching
Cover crops and biochemical functional diversity in relation to nitrogen availability in soil

Creator:

Burket, John Zimmerman

Abstract:

Nitrogen availability in agricultural soils from fertilizer, plant residue inputs, and soil organic matter has important implications beyond crop yield. Legume winter cover crops and one fourth the recommended N rate on sweet corn resulted in yields equivalent to those at the recommended rate in the Willamette Valley of western...

Resource Type:

Dissertation

Full Text:

respiration in a thin Black Chernozem. Can. J. Soil Sci. 71: 363-376. Castellanos, J. Z. and P. F. Pratt

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Academic Affiliation

Crop and Soil Science2
Bioresource Engineering1

Advisor

Dick, Richard P.1
Mosley, Alvin R.1
Selker, John S.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1996 to 1999

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Unknown 1

Committee Member

Boydston, Rick1
Clough, George1
Dick, Richard1
English, Marshall1
Fichter, Eugene1
more Committee Members »

Creator

Buford, Thomas1
Burket, John Zimmerman1
Dick, Richard1
Fernando, M.F. Sydney W.1
Hess, Mario1
more Creators »

Date

Date range begin – Date range end

Current results range from 1995 to 1999

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Decade

1990-19994

Degree Field

Bioresource Engineering1
Crop Science1
Soil Science1

Degree Level

Doctoral2
Master's1

Degree Name

Doctor of Philosophy (Ph.D.)2
Master of Science (M.S.)1

Language

English [eng]4

Non-Academic Affiliation

Oregon State University. Graduate School3
Oregon State University. Extension Service1

Peer Reviewed

No2

Resource Type

Dissertation2
Masters Thesis1
Technical Report1

Rights Statement

Copyright Not Evaluated4

Subject

Cover crops -- Oregon[remove]4
Soils -- Nitrogen content -- Oregon2
Cover crops -- Columbia River Watershed1
Groundwater -- Pollution -- Oregon1
Leaching -- Oregon -- Measurement1
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