Index Catalog // ScholarsArchive@OSU

Nitrate leaching and model evaluation under winter cover crops

Creator:: Minshew, Hudson F.
Resource Type:: Masters Thesis
Full Text:: of Master of Science in Soil Science presented on November 11, 1998. Title: Nitrate Leaching and

Nitrogen scavenging : using cover crops to reduce nitrate leaching in western Oregon

Creator:: Sattell, Robert, Dick, Richard, Hemphill, Delbert D., Selker, John S., Brandi-Dohrn, Florian M., Minchew, Hudson, Hess, Marlo, Sandeno, Joan, Kaufman, Susan M., and Oregon State University. Extension Service
Abstract:: Declared out of print April 2010. 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:: Nitrate Leaching in Western Oregon EM R. Sattell, R. Dick, D. Hemphill, J. Selker, F. Brandi-Dohrn, H

Deep soil nitrogen survey, Lower Umatilla Basin, Oregon

Creator:: del Nero, Zachary Augustus
Abstract:: Soils of 49 agricultural and 2 "native condition" sites in the Lower Umatilla Basin, Oregon were sampled for nitrate-nitrogen, ammonium-nitrogen, chloride, and pH beginning in Fall of 1992. Several sites were sampled in Spring and Fall 1993 in order to indicate movement or loss of residual soil nitrogen over time....
Resource Type:: Masters Thesis
Full Text:: Umatilla Basin, Oregon were sampled for nitrate-nitrogen, ammonium-nitrogen, chloride, and pH beginning

An evaluation of well-water nitrate exposure and related health risks in the Lower Umatilla Basin of Oregon

Creator:: Mitchell, Thomas J.
Abstract:: Excessive nitrates in drinking water pose a human health threat, especially to infants. Methemoglobinemia, or blue-baby syndrome, is a potentially fatal condition that inhibits the ability of red blood cells to bind and transport oxygen. Nitrates/nitrites have also been linked to such conditions as cancer, birth defects, and behavioral and...
Resource Type:: Masters Thesis
Full Text:: Evaluation of Well-Water Nitrate Exposure and Related Health Risks in the Lower Umatilla Basin of Oregon by

Nitrate and water under terraced dryland wheat production in Oregon

Creator:: Strock, Jeffrey S.
Abstract:: Dry land agriculture using summer fallow is a common crop production practice in the Columbia Plateau region of eastern Oregon. Farmed-over level terraces are used to control surface water runoff and soil erosion. More than 70 percent of the average annual precipitation around Pendleton, Oregon (350 - 400 mm) falls...
Resource Type:: Masters Thesis
Full Text:: Nitrate and water under terraced dryland wheat production in

Nitrate and pesticide transport under pear production in clay and sandy soil

Creator:: Cao, Weidong
Abstract:: Groundwater contamination on irrigated land is of concern in this nation and around the world. In order to reduce the potential of groundwater contamination by agricultural practices such as irrigation, fertilizer and pesticide application, vadose-zone monitoring and sampling are needed. The main objective of this study was to evaluate impacts...
Resource Type:: Masters Thesis
Full Text:: nitrate and pesticides below the rooting zone in Oregon soils. It is important to determine the impact

Computer simulation to control environmental impact of water and nitrate leaching in furrow irrigated fields

Creator:: Raja, Syed Navaid
Abstract:: Nitrate contamination in ground and surface waters is of great concern to environmentalists. A two-dimensional model of water and solute movement in soils was used to test the usefulness and relative advantages of a two-dimensional model over a one dimensional model for analysis of deep percolation and nitrate leaching in...
Resource Type:: Masters Thesis
Full Text:: Control Environmental Impact of Water and Nitrate Leaching in Furrow Irrigated Fields Abstract approved

Peppermint irrigation and nitrogen management for the reduction of nitrate loading to groundwater

Creator:: Smesrud, Jason K.
Abstract:: The agricultural production of peppermint has been shown to contribute significant quantities of nitrate-nitrogen to groundwater recharge. In an effort to provide new tools for increasing nitrogen efficiency within peppermint production, three research questions were proposed: i) How should plant tissue samples be collected to achieve the greatest precision when...
Resource Type:: Masters Thesis
Full Text:: reduction of nitrate loading to groundwater AN ABSTRACT OF THE THESIS OF Jason K. Smesrud for the

Effects of potato cropping practices on nitrate leaching in the Columbia basin

Creator:: McMorran, Jeffrey P.
Resource Type:: Dissertation
Full Text:: western Umatilla and northern Morrow counties by the Oregon Department of Environmental Quality (ODEQ

Predicting nitrate concentrations in leachate resulting from land application of wastewater onto various crop systems including poplars

Creator:: Motte, Marie Quitterie
Abstract:: Land application of industrial wastewater with high levels of nitrogen requires adequate management practices to prevent groundwater pollution by nitrates. In this study a predictive computerized model was developed for nitrate leachate concentrations resulting from land application of wastewater onto crop systems including poplars. The study included a literature review,...
Resource Type:: Masters Thesis
Full Text:: leachate concentrations in nitrate over the year and (2) evidence to the Department of Environmental

ScholarsArchive@OSU

Nitrate leaching and model evaluation under winter cover crops

Nitrogen scavenging : using cover crops to reduce nitrate leaching in western Oregon

Deep soil nitrogen survey, Lower Umatilla Basin, Oregon

An evaluation of well-water nitrate exposure and related health risks in the Lower Umatilla Basin of Oregon

Nitrate and water under terraced dryland wheat production in Oregon

Nitrate and pesticide transport under pear production in clay and sandy soil

Computer simulation to control environmental impact of water and nitrate leaching in furrow irrigated fields

Peppermint irrigation and nitrogen management for the reduction of nitrate loading to groundwater

Effects of potato cropping practices on nitrate leaching in the Columbia basin

Predicting nitrate concentrations in leachate resulting from land application of wastewater onto various crop systems including poplars

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