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Filtering by: Subject Nitrogen in agriculture -- Oregon, Western Remove constraint Subject: Nitrogen in agriculture -- Oregon, Western

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Estimating plant-available nitrogen from manure

Creator:

Oregon State University. Extension Service and Sullivan, Dan M. (Dan Matthew), 1954-

Abstract:

Nutrient management plans for crops require estimates of plant-available nitrogen (PAN) provided by application of manure or compost. Recent developments have stimulated interest in utilizing manure nitrogen (N) as a resource. These factors include the following: • Increased cost of N fertilizers • Increased value of PAN from manure on...

Resource Type:

Technical Report

Full Text:

used in western Oregon and has accurately determined NH4-N in dairy manure . See “On-Farm Quick Tests
The use of boron on western Oregon soils

Creator:

Oregon State College. Agricultural Experiment Station and Powers, W. L. (Wilbur Louis), 1887

Abstract:

Published February 1939. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog

Resource Type:

Technical Report

Full Text:

boron in Western Oregon is in the experimental stage and there is yet much to learn before its
Field measurements of nitrate leaching below Willamette Valley row and mint crops

Creator:

Oregon State University. Extension Service, Feaga, Jeff, and Selker, John S.

Abstract:

According to the United States Geological Survey, 9 percent of wells in the Willamette Valley exceed the EPA’s 10 ppm drinking water standard for nitrogen in the NO3– compound, or NO3–-N. A study of 281 domestic drinking water wells in Lane County showed that 22 percent of the wells exceeded...

Resource Type:

Technical Report

Full Text:

. Mellbye, and G. Gingrich. 2003. Soil nitrogen dynamics in peppermint fields. Proceedings, Western Nutrient
An eleven year study of nitrate leaching in vegetable production with winter cover crops

Creator:

Feaga, Jeff

Abstract:

The Willamette Valley of Oregon has high rates of winter precipitation that cause leaching losses of residual fertilizer nitrogen (N) as nitrate (NO₃). Cover crops may have potential to mitigate N loss. Shallow groundwater was sampled for 11 years from plots planted in summer vegetables with and without winter cover...

Resource Type:

Masters Thesis

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Academic Affiliation

Bioresource Engineering1

Advisor

Selker, John S.1

Commencement Year

20041

Committee Member

Dick, Richard1
Gamroth, Mike1

Creator

Feaga, Jeff2
Oregon State University. Extension Service2
Oregon State College. Agricultural Experiment Station1
Powers, W. L. (Wilbur Louis), 18871
Selker, John S.1
more Creators »

Date

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Current results range from 1939 to 2008

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Decade

2000-20093
1930-19391

Degree Field

Bioresource Engineering1

Degree Level

Master's1

Degree Name

Master of Science (M.S.)1

Language

English [eng]4

License

All rights reserved1

Non-Academic Affiliation

Oregon State University. Extension Service2
Oregon State University. Agricultural Experiment Station1
Oregon State University. Graduate School1

Peer Reviewed

Yes3
No1

Resource Type

Technical Report3
Masters Thesis1

Rights Statement

In Copyright3
Copyright Not Evaluated1

Subject

Nitrates -- Environmental aspects -- Oregon -- Willamette River Valley2
Nitrogen in agriculture -- Oregon -- Willamette River Valley2
Agricultural pollution -- Oregon -- Willamette River Valley1
Boron in agriculture -- Oregon, Western1
Boron in plant nutrition -- Oregon, Western1
more Subjects »

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