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Background:
Dr. Albrecht recieved his BA in
chemistry from the University of New Mexico in Albuquerque, NM, in 1969.
That same year he also earned a BA in biology (from the same university).
Two years later, he received an MS degree in biology from the University
of New Mexico. In 1974, Dr. Albrecht was awarded a PhD in Microbial
Physiology from King's College at the University of London in London, UK.
Current Research
Projects
Objective:
Identify pathways of water infiltration into soil and factors producing
high infiltration rates. Produce guidelines for high infiltration
capacity. Evaluate functional and taxonomic diversity of soil
microorganisms. Delineate soil organic matter components and their
relationship to soil quality. Develop a soil carbon model capable of using
readily available data to predict the storage or loss of soil carbon in
relation to management practice.
Approach:
Changes in soil fauna, carbon accumulation, porosity characteristics,
compaction, aggregation, and microbial activity will be investigated for
their role in water infiltration into tilled and untilled cropping
systems. Dye tracing and other techniques will be developed to identify
actual infiltration routes. Climax communities of soil microorganisms in
longterm agroecosystems will be identified using physiological and
biochemical methods. The population dynamics of selected taxa will be
determined and the activity of important microbial groups will be
measured. Carbon and nitrogen transformations in selected management
systems will be evaluated by standard analytical methods. Soil organic
matter pools will be investigated and their relationship to soil quality
evaluated. .A mathematical model, in Windows format, for carbon
sequestration in agricultural soils will be developed. The model will be
based on observations from local long-term experiments and will be
validated using long-term data from sites across the USA.
Objective:
1. Quantify soil erosion, hydrology, and crop yield of two systems: a
winter wheat/fallow inversion tillage system and a no-till four-year
rotation, to evaluate the systems on a landscape basis and provide
databases for soil erosion model validation and decision support tool
development.
2. Determine the
effects of quality of carbon on soil aggregate stability; that in turn
influences surface soil hydrology, soil erosion, and crop production.
3. Improve the
economic viability of conservation farming systems by developing and
evaluating new, innovative technologies for harvesting that properly sizes
crop residue for optimum no-till drill performance and adds value by
segregating grain by quality; and for applying cropping inputs in
accordance with spatial variability in soils and landscapes to improve
grain yields and grain quality.
Approach:
A combination of plots and watershed-scale research will be used to test
working hypotheses within each of the sub-objectives. Development and
testing of a new crop rotation will be conducted using paired watersheds
and small plots to examine the effectiveness of soil and water
conservation, changes in the soil properties, and cropping system
productivity. Soil aggregate stability influences infiltration and water
retention. The influence of aggregate stability on infiltration and water
retention will be determined within the watershed research site at
specified landscape positions. Economic and efficiency improvements to
conservation farming systems will be made through the development of new
crop residue management and harvest technologies, and precision
conservation practices that overcome the inherent constraints imposed by
spatial variability in soil/crop productivity within farm fields. These
improvements will be accomplished through the use of engineering
procedures, plot research, and integration of geospatial information and
analysis technologies.
Selected
Publications:
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Tillage and Nitrogen Fertilizer Influences on Carbon and Soluble Silica
Relations - (22-May-05)
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Winter Wheat Responses to Nitrogen Fertilization in a Direct-Seed,
Summer-Fallow Management System
Albrecht, S.L., Skirvin, K.W., Long, D.S. 2005. Winter wheat responses to
nitrogen fertilization in a direct-seed, summer-fallow management system.
pp. 87-91. In 2005 Dryland Agricultural Research Annual Report. D.A. Long,
S.E. Petrie, and P.M. Frank, eds. SR 1061. Corvallis, OR: Oregon State
University Agric. Exp. Station in cooperation with USDA-ARS, Pendleton, OR
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Incorporated Source Carbon and Nitrogen Fertilizer Influence on
Sequestered Carbon and Soluble Silica in a Pacific Northwest Mollisol
Gollany, H.T., Allmaras, R.R., Albrecht, S.L., Copeland, S.M., Douglas, Jr,
C.L. 2005. Incorporated source carbon and nitrogen fertilizer influence on
sequestered carbon and soluble silica in a Pacific Northwest mollisol.
Third USDA Symposium on Greenhouse Gas Emissions and Carbon Sequestration
in Agriculture and Forestry. 21-24 March, 2005. p. 107.
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Protocols for Nationally Coordinated Laboratory and Field Research on
Manure Nitrogen Mineralization
Honeycutt, C.W., Griffin, T.S., Wienhold, B.J., Eghball, B., Albrecht, S.L.,
Powell, J.M., Woodbury, B.L., Sistani, K.R., Hubbard, R.K., Torbert Iii,
H.A., Eigenberg, R.A., Wright, R.J., Jawson, M.D., He, Z. 2005. Protocols
for nationally coordinated laboratory and field research on manure
nitrogen mineralization. Communications in Soil Science and Plant
Analysis. Volume 36
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Tillage and Nitrogen Fertilizer Influence on Carbon and Silica
Distribution in a Mollisol of the Pacific Northwest
Gollany, H.T., Allmaras, R.R., Copeland, S.M., Albrecht, S.L., Douglas,
C.L. 2005. Tillage and nitrogen fertilizer influence on carbon and silica
distribution in a mollisol of the Pacific Northwest. Soil Science Society
of America Journal 69:1102-1109.
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Biological Aspects of Soil and Crop Management
Hopkins, B.G., Miller, J., Albrecht, S.L. 2004. Biological aspects of soil
and crop management. Potato Grower. Vol. 33, No. 6. Harris Publishing,
Idaho Falls, Idaho. p.24-29..
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Root and Shoot Mass for Selected Pacific Northwest Crops
Douglas, Jr, C.L., Albrecht, S.L., Rickman, R.W., Mccool, D.K. 2004. Root
and shoot mass for selected Pacific Northwest crops. Agronomy Abstracts.
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Long-Term Experiments at Cbarc-Pendleton, 2002 and 2003
Machado, S., Rhinhart, K., Albrecht, S.L., Petrie, S. 2004. Long-term
experiments at CBARC-Pendleton, 2002 and 2003. Columbia Basin Agricultural
Research Annual Report, Ag. Expt. Sta., Oregon State University, SR 1054.
p. 61-77..
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Long-Term Cropping System Effects on Soil Nitrogen
Albrecht, S.L., Machado, S. 2003. Long-term cropping system effects on
soil nitrogen. Agronomy Abstracts. (CD-ROM). American Society of Agronomy,
Madison, WI.
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Soil Carbon Trends in Pacific Northwest Wheat-Fallow Systems
ALBRECHT, S.L., MACHADO, S., WILKINS, D.E. SOIL CARBON TRENDS IN PACIFIC
NORTHWEST WHEAT-FALLOW SYSTEMS. COLUMBIA BASIN AGRICULTURAL RESEARCH
ANNUAL REPORT. 2003.
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Carbon and Nitrogen Dynamics in the Soil-Plant Continuum: Measured and
Simulated
Gollany, H.T., Clapp, C.E., Molina, J., Linden, D.R., Allmaras, R.R.,
Layese, M.F. 2002. Carbon and nitrogen dynamics in the soil-plant
continuum: measured and simulated. Meeting Abstract. Proceedings of
natural organic matter in soil and water. North Central Region Symposium.
p. 68.
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Chemical Fallow Seed-Zone Soil Water Content in a Dry Fall -
(01-Mar-03).
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Chemical Fallow Seed-Zone Soil Water Content in a Dry Fall
WILKINS, D.E., ALBRECHT, S.L., JOHLKE, T.R. CHEMICAL FALLOW SEED-ZONE SOIL
WATER CONTENT IN A DRY FALL.PGS 64-69. IN 2003 COLUMBIA BASIN AGRICULTURAL
RESEARCH CENTER ANNUAL REPORT, SR 1047. 2003.
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Carbon and Nitrogen Turnover in Dry Land Pacific Northwest Agroecosystems
ALBRECHT, S.L., MACHADO, S. CARBON AND NITROGEN TURNOVER IN DRY LAND
PACIFIC NORTHWEST AGROECOSYSTEMS. SOIL AND WATER CONSERVATION SOCIETY 2003
ANN CONF. ABST. P. 67. 2003.
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Methane Emissions of Rice Increased by Elevated Carbon Dioxide and
Temperature
ALLEN JR, L.H., ALBRECHT, S.L., COLON, W., COVELL, S.A., BAKER, J.T., PAN,
D., BOOTE, K.J. METHANE EMISSIONS OF RICE INCREASED BY ELEVATED CARBON
DIOXIDE AND TEMPERATURE. JOURNAL OF ENVIRONMENTAL QUALITY. 2003.
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Carbon Dioxide Flux Measurement During Simulated Tillage
WUEST,S.B., DURR,D., ALBRECHT,S.L., CARBON DIOXIDE FLUX MEASUREMENT DURING
SIMULATED TILLAGE, AGRONOMY JOURNAL, 95:715-718 (2003).
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Carbon Dioxide Flux Measurement During Simulated Tillage
WUEST,S.B., DURR,D., ALBRECHT,S.L., CARBON DIOXIDE FLUX MEASUREMENT DURING
SIMULATED TILLAGE, AGRONOMY JOURNAL, 95:715-718 (2003).
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Altered Kinetic Properties of Tyrosine-183 to Cysteine Mutation in
Glutamine Synthetase of Anabaena Veriabilis Strain Sa1 Is Responsible for
the Excretion of Ammonium Ion Produced by Nitrogenase
HEALY, F.G., LATORRE, C., ALBRECHT, S.L., REDDY, P.M., SHANMUGAM, K.T.
2003. ALTERED KINETIC PROPERTIES OF TYROSINE-183 TO CYSTEINE MUTATION IN
GLUTAMINE SYNTHETASE OF ANABAENA VERIABILIS STRAIN SA1 IS RESPONSIBLE FOR
THE EXCRETION OF AMMONIUM ION PRODUCED BY NITROGENASE. CURRENT
MICROBIOLOGY. 46(2003):423-431.
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Changes in Soil Physical Characteristics During Transition from Intensive
Tillage to Direct Seeding - (18-Mar-02)
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A USDA-ARS Nationally Coordinated Project to Determine N Mineralization
from Animal Manure -- Soils
HUBBARD, R.K., HONEYCUTT, C.W., ALBRECHT, S.L., BRINK, G.E., EGHBALL, B.,
MCGOWAN, S., SISTANI, K.R., WIENHOLD, B.J. A USDA-ARS NATIONALLY
COORDINATED PROJECT TO DETERMINE N MINERALIZATION FROM ANIMAL MANURE --
SOILS. AMERICAN SOCIETY OF AGRONOMY MEETINGS. Abstract #50. 2001.
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Changes in Nitrogen Mineralization with Beef Feedlot Manure Amendments in
Semiarid Oregon Soils - (01-Aug-01)
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Tillage Effects on Soil Carbon in Pacific Northwest Dryland Cereal
Production - (01-Aug-01)
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Tillage, Crop Rotation, and Organic Amendment Effect on Changes in Soil
Organic Matter - (24-Jul-01)
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Cqestr, a Field-Level Farm Carbon Sequestration Planning Tool -
(06-Jun-01)
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How Tillage and Cropping Systems Change Soil Organic Matter. Inland
Pacificnorthwest Research. - (18-Jan-01)
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Cqestr: a Model to Estimate Carbon Sequestration in Agricultural Soils
- (15-Sep-00)
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Carbon and Nitrogen Sequestration in Long-Term Pacific Northwest
Agroecosystems - (15-Aug-00)
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Effect of Tillage and Fallow on Soil Organic Carbon in the Columbia
Plateau
WILKINS, D.E., ALBRECHT, S.L., SIEMENS, M.C. EFFECT OF TILLAGE AND FALLOW
ON SOIL ORGANIC CARBON IN THE COLUMBIA PLATEAU. SOIL TILLAGE RESEARCH
ORGANIZATION INTERNATIONAL CONFERENCE PROCEEDINGS. JULY 2-7. FT. WORTH,
TX. (CD ROM - WILKINS#208-P16.PDF 9 PAGES). 2000.
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Burn Or Bale: Effect on Biomass and Nutrients - (01-May-00)
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Crop Residue Position and Interference with Wheat Seedling Development
- (17-Apr-00)
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Soil Carbon in Long-Term Pacific Northwest Agroecosystems -
(01-Aug-99)
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Labile C from Particulate Organic Matter: Soil Depth and Tillage Efects
- (01-Aug-99)
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Documenting Soil Quality Changes in the Transition to No-Till: 16 Years
No-Till Versus First Year No-Till and Conventional Tillage Near Pendleton,
Oregon - (05-Jan-99)
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