Index Catalog // ScholarsArchive@OSU

An Analysis of Nutrient Depletion in Douglas-fir Forests of the Oregon Coast Range

Creator:: Siah, Kaveh G.
Abstract:: Nutrient limitation constrains tree growth in many managed forests. Nitrogen (N) is the most common limiting nutrient, but high N supply can shift limitation to other nutrients, particularly phosphorus (P) and the base cations calcium (Ca), magnesium (Mg), and potassium (K). As different soil minerals have different capacities to supply...
Resource Type:: Masters Thesis
Full Text:: (N) is the most common limiting nutrient, but high N supply can shift limitation to other

Trends in cation, nitrogen, sulfate and hydrogen ion concentrations in precipitation in the United States and Europe from 1978 to 2010: a new look at an old problem

Creator:: Lajtha, Kate and Jones, Julia A.
Abstract:: Industrial emissions of SO₂ and NOₓ, resulting in the formation and deposition of sulfuric and nitric acids, affect the health of both terrestrial and aquatic ecosystems. Since the mid-late 20th century, legislation to control acid rain precursors in both Europe and the US has led to significant declines in both...
Resource Type:: Article
Full Text:: variety of industrial and land-use histories to (1) quantify trends in SO4-S, H+, NH4-N, Ca, and NO3-N

Water management effects on birdsfoot trefoil seed production

Creator:: García-Díaz, Carlos Alberto
Abstract:: There is no information available on water management of birdsfoot trefoil grown for seed. Information is also not available describing how to minimize seed losses due to shattering in order to obtain consistently high birdsfoot trefoil seed yields. The objectives of this research are to: (i) quantify crop water use,...
Resource Type:: Dissertation
Full Text:: : Repres n n ro Sc" nce (Major) Head of Department of Crop and Soil Science Dean of ate Scta6bl I

Growing cereal grains for forage

Creator:: Hannaway, D. B., Youngberg, Harold Wayne, 1929-, McGuire, William S., Adams, H. P. (Holyoke Purinton), 1922-, Claypool, D., Leffel, John Alvan, and Oregon State University. Extension Service
Resource Type:: Technical Report
Full Text:: nitrogen (N) used on small grains influ- ences yield greatly, although phosphorus (P) and potassium (K

Glyphosate Resistance and Tolerance in Italian Ryegrass (Lolium perenne spp multiflorum) : Termination Treatments, Cultivar, and Resistance Evaluation

Creator:: MacPherran, Robert Chase
Abstract:: Annual ryegrass, or Italian ryegrass (Lolium perenne spp. multiflorum), has been the most stable, in terms of acres, grass produced for the past 25 years in Oregon. Increased interest in Italian ryegrass as a cover crop has increased demand for quality seed. Ideal Italian ryegrass cover crop cultivars are named...
Resource Type:: Masters Thesis
Full Text:: with 15NH415NO3. Journal of Environmental Quality 30:1659–1667 Hartwig, N. L., H. U. Ammon. 2002

Modeling the temperature-mediated phenological development of alfalfa (Medicago sativa L.)

Creator:: Ben-Younes, Mongi, 1953-
Resource Type:: Dissertation
Full Text:: . Alfalfa consistently fixes more nitrogen (N) than other legume species on a seasonal basis (Vance et al

Carbon cycling and priming of soil organic matter decomposition in a forest soil following glucose additions

Creator:: Diaz, David D.
Abstract:: Soils are a globally significant carbon (C) pool and have the potential to respond to elevated CO2 and environmental changes through positive feedback cycles that enhance the turnover of soil organic matter (SOM). Understanding the mechanisms governing the turnover of SOM is particularly important for modeling the fate of C...
Resource Type:: Masters Thesis
Full Text:: availability of N and the presence of complex plant compounds such as lignin (Melillo et al., 1982). In the

Pasture renovation with herbicide suppression of weeds and no-till seeding of orchardgrass

Creator:: Fitzsimmons, James P.
Abstract:: No-till pasture renovation can increase the quality and forage yield of underproductive pastures. Decreased erosion, lower costs, and less lost grazing time are advantages of no-till renovation compared to conventional renovation. Unwanted vegetation is first controlled with herbicides to decrease competition for introduced orchardgrass. Two field trials were conducted using...
Resource Type:: Masters Thesis
Full Text:: action from thatch containing paraquat may inhibit grass establishment. Glyphosate Glyphosate [N

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:: -N, NH4-N, soil organic matter, soil organic nitrogen, pH, P, K, Ca, and Mg. Plant tissues were

Resistance to atrazine and diuron in California brome

Creator:: Workineh, Mengistu Lemma
Resource Type:: Masters Thesis
Full Text:: conducted to characterize atrazine ( 6-chloro- N-ethyl- N'- ( 1 methyl -1,3,5-triazine,-2,4-diamine ) and

ScholarsArchive@OSU

An Analysis of Nutrient Depletion in Douglas-fir Forests of the Oregon Coast Range

Trends in cation, nitrogen, sulfate and hydrogen ion concentrations in precipitation in the United States and Europe from 1978 to 2010: a new look at an old problem

Water management effects on birdsfoot trefoil seed production

Growing cereal grains for forage

Glyphosate Resistance and Tolerance in Italian Ryegrass (Lolium perenne spp multiflorum) : Termination Treatments, Cultivar, and Resistance Evaluation

Modeling the temperature-mediated phenological development of alfalfa (Medicago sativa L.)

Carbon cycling and priming of soil organic matter decomposition in a forest soil following glucose additions

Pasture renovation with herbicide suppression of weeds and no-till seeding of orchardgrass

Effects of winter cover crops following potato (Solanum tuberosum L.) on soil nitrate and soil fertility in the Columbia Basin

Resistance to atrazine and diuron in California brome

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search