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Post-harvest soil nitrate testing for manured cropping systems west of the Cascades

Creator:: Oregon State University. Extension Service, Sullivan, Dan M. (Dan Matthew), 1954-, and Cogger, Craig George, 1950-
Abstract:: This publication describes the use of post harvest soil nitrate testing as a tool for assessment of nitrogen (N) management in manured cropping systems west of the Cascade Mountains in Oregon, Washington, and south coastal British Columbia. The first section of this publication gives general information on the test and...
Resource Type:: Technical Report
Full Text:: Post-harvest Soil Nitrate Testing for Manured Cropping Systems

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:: Oregon AN ABSTRACT OF THE THESIS OF Jeffrey S. Strock for the degree of Master of Science in Soil

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:: degree of Doctor of Philosophy in Crop Science presented on Soil Nitrate and Soil Fertility in the

Inorganic nitrogen and soil biological dynamics in cover crop systems

Creator:: Kauffman, Susan Muna
Resource Type:: Masters Thesis
Full Text:: of nitrate (NO3 ") into groundwater is of concern in the Willamette Valley of Oregon. Knowledge of

The Pre-sidedress Soil Nitrate Test (PSNT) for western Oregon and western Washington [1997]

Creator:: Marx, E. S., Christensen, Neil Walter, 1944-, Hart, John M. (John Mervyn), 1947-, Gangwer, Michael I., Cogger, Craig George, 1950-, Bary, Andy I., and Oregon State University. Extension Service
Abstract:: Published April 1996. Reprinted August 1997. 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:: DAIRY PRODUCTION The pre-sidedress soil nitrate test (PSNT) for Western Oregon and Western Washington

Effects of 20 years of litter and root manipulations on soil organic matter dynamics

Creator:: Wig, Jennifer D.
Abstract:: Globally, the forestry sector is the second largest contributor of greenhouse gases, and sustainable forest management is a major target of international environmental policy. However, there is the assumption underlying many policy recommendations that an increase in above-ground carbon stocks correspond to long term increases in ecosystem carbon stocks, the...
Resource Type:: Masters Thesis
Full Text:: in soil respiration rates, probably due to decreases in moisture and organic matter content, but

Phosphorus availability in biosolids-amended soils

Creator:: Choate, Jeff
Abstract:: Quantifying labile phosphorus (P) pools in biosolids is needed to manage biosolids for both agronomic and environmental purposes. Phosphorus indices originated in an effort to protect surface water quality from-non-point-agricultural P inputs. The objectives of this research were to: (1) evaluate soil test components of the western Oregon P index...
Resource Type:: Masters Thesis
Full Text:: research were to: (1) evaluate soil test components of the western Oregon P index in field and laboratory

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:: Deep soil nitrogen survey, Lower Umatilla Basin, Oregon AN

Availability of phosphorus in central Oregon soils in comparison with selected Oregon soils

Creator:: Araos, Jose Fernando
Abstract:: The objectives of this study were to evaluate and compare the availability of native and applied P in Central Oregon pumice soils with that in Willamette valley soils and calcareous soils from Eastern Oregon. The experimental work to meet these objectives included laboratory and greenhouse studies. The removal of P...
Resource Type:: Masters Thesis
Full Text:: correlation coefficients between available soil P determined by different methods and P content and uptake

Measurement of microbial biomass phosphorus in Oregon soils

Creator:: Claycomb, Peter T.
Resource Type:: Masters Thesis
Full Text:: of soil E. 3. Changes in gravimetric water content of field 61 soils during the sampling period. 4a

ScholarsArchive@OSU

Post-harvest soil nitrate testing for manured cropping systems west of the Cascades

Nitrate and water under terraced dryland wheat production in Oregon

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

Inorganic nitrogen and soil biological dynamics in cover crop systems

The Pre-sidedress Soil Nitrate Test (PSNT) for western Oregon and western Washington [1997]

Effects of 20 years of litter and root manipulations on soil organic matter dynamics

Phosphorus availability in biosolids-amended soils

Deep soil nitrogen survey, Lower Umatilla Basin, Oregon

Availability of phosphorus in central Oregon soils in comparison with selected Oregon soils

Measurement of microbial biomass phosphorus in Oregon soils

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