Index Catalog // ScholarsArchive@OSU

Stability of soil structure for water movement in an aridisol

Creator:: Ali, Safdar
Abstract:: Lack of stability of soil aggregates for water movement is a major problem in arid soils due to low organic matter and higher sodium contents. Soil amendments for improving stability of structure and increasing infiltration of water are essential to solve water management problems in these areas. Different rates of...
Resource Type:: Masters Thesis
Full Text:: . Delbert D. Hemphill for serving on my graduate committee. I would like also to thank Dr. Clinton C

Soil reactions and plant growth after tannery waste application to an agricultural soil

Creator:: Stomberg, Andrea Lea
Resource Type:: Masters Thesis
Full Text:: . D. D. Hemphill and Dr. J. K. Huddleston. To the staff of the North Willamette Agricultural

Growth, yield and water use of rainfed wheat and maize influenced by tillage and fertilizer in Pothwar, Pakistan

Creator:: Ali, Safdar
Resource Type:: Dissertation
Full Text:: Russell Karow and Professor D. Hemphill. Special thanks are extended to Government of Pakistan and the

Quantifying the fertilizer value of algal meal : an evaluation of an integrated dairy-anaerobic digester-algae production facility

Creator:: Andrews, Shannon B.
Abstract:: Algae have shown great potential as a source for renewable fuels. However, current production schemes have not been able to prove a sustainable energy return on investment due in part to the high costs of nutrient addition and the energy required for drying the biomass. Integrated algae-dairy production systems have...
Resource Type:: Masters Thesis
Full Text:: Dairy-Anaerobic Digester-Algae Production Facility Abstract approved: David D. Myrold

Using Algal Biomass as a Fertilizer

Creator:: Cappellazzi, Shannon B.
Abstract:: Algae can be used in a variety of wastewater systems to capture nutrients while fixing carbon dioxide from the atmosphere. I conducted field trials at three locations in Oregon with both corn and potato crops to assess the agronomic value and environmental impact of using the resulting algal biomass as...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ David D. Myrold Algae can be used in a variety of wastewater systems to capture

Searching for Early Archaeological Sites Along the Central Oregon Coast: A Case Study From Neptune State Park (35LA3), Lane County, Oregon

Creator:: Jenevein, Steven A.
Abstract:: Locating archaeological sites that predate the arrival of modern sea level has been difficult along the Oregon coast. This is in part believed to be the result of geologic processes that have influenced the preservation, distribution, and visibility of sites within the Oregon coastal landscape. Because of these changes, researchers...
Resource Type:: Masters Thesis
Full Text:: my committee members Dr. Anne W. Nolin, Dr. Jay S. Noller, and Dr. Carmen D. Steggell. Thank you

Estimating the dry matter production, nitrogen requirements, and yield of organic farm-grown potatoes

Creator:: McQueen, John Paul Gainer
Abstract:: As part of a participatory research project, where farmers and Oregon State University researchers collaborated, aspects of potato (Solanum tuberosum L.) growing systems were studied. It was determined through conversations with the farmers that quantification of certain growth parameters of potato was lacking, including dry matter accumulation, crop nitrogen (N)...
Resource Type:: Masters Thesis
Full Text:: N mineralization incubation was conducted for 63 d at 22˚C with subsampling to determine NO3-N

Nitrate leaching and model evaluation under winter cover crops

Creator:: Minshew, Hudson F.
Resource Type:: Masters Thesis
Full Text:: . Delbert Hemphill for managing our research plots at the North Willamette Research and Extension Center

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:: Cover Crops in Sweet Corn and Broccoli Rotations John Z. Burket, Delbert D. Hemphill, and Richard P

Estimating plant-available nitrogen release from manures, composts, and crop residues

Creator:: Gale, Eric S.
Abstract:: In order to properly utilize organic amendments as nitrogen sources, reliable methods to estimate plant-available nitrogen (PAN) are needed. The objectives of this study were to (1) evaluate the use of crop and soil responses in fertilizer N equivalence (FNE) calculations, (2) examine the relationships between the C/N ratio, total...
Resource Type:: Masters Thesis
Full Text:: organic amendments were evaluated for CO2 evolution and N mineralization in a 70 d incubation. Amendments

ScholarsArchive@OSU

Stability of soil structure for water movement in an aridisol

Soil reactions and plant growth after tannery waste application to an agricultural soil

Growth, yield and water use of rainfed wheat and maize influenced by tillage and fertilizer in Pothwar, Pakistan

Quantifying the fertilizer value of algal meal : an evaluation of an integrated dairy-anaerobic digester-algae production facility

Using Algal Biomass as a Fertilizer

Searching for Early Archaeological Sites Along the Central Oregon Coast: A Case Study From Neptune State Park (35LA3), Lane County, Oregon

Estimating the dry matter production, nitrogen requirements, and yield of organic farm-grown potatoes

Nitrate leaching and model evaluation under winter cover crops

Cover crops and biochemical functional diversity in relation to nitrogen availability in soil

Estimating plant-available nitrogen release from manures, composts, and crop residues

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