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William B. Stevens (Bart)

Research Agronomist

Bart Stevens.Bart Stevens


Phone: 406.433.9476
Fax: 406.433.5038
 

 


• Education • Current Research • Research Experience • Publications • 

 

 

 


Additional Pages: Research Projects,* Publications*

*Taken from the Agricultural Research Information System (ARIS) database.

 


EDUCATION

 
B.S. Crop Science 1991 Brigham Young University
M.S. Plant Nutrition 1993 Brigham Young University
Ph.D. Soil Fertility 1997 University of Illinois at Urbana-Champaign

 

 

CURRENT RESEARCH

 

The focus of Bart’s research program at NPARL will be to work collaboratively with other NPARL scientists to investigate alternative irrigated cropping strategies and to investigate their impact on weed management, soil quality and conservation, water and nutrient use efficiency, and economic and environmental sustainability.

 

 

RESEARCH EXPERIENCE

 

Prior to joining the USDA-Agricultural Research Service in 2005, Bart was a Soil Scientist at the University of Wyoming Powell Research and Extension Center where his research focused on improving efficiency of N fertilization practices for sugarbeet and dry bean using variable rate technology, improved application timing, and proper N source selection.  While at the University of Wyoming, Bart also investigated the interaction of micronutrient management and weed control practices in sugarbeet.  Before beginning his work in Wyoming Bart worked for two years as a post-doctoral research associate at the University of Nebraska West Central Research and Extension Center.  While there, he conducted research on use of industrial byproducts (sugarbeet processing lime and coal fly ash) for liming agricultural soils, micronutrient management in corn, and variable rate N management.  Bart’s graduate work ranged from investigating the iron deficiency stress mechanism of soybean to the effect of different management practices on soil N transformations and N use efficiency.

 

 

SELECTED PUBLICATIONS
Please note: The most recent publications by this scientist may not yet be listed here. Please check the ARIS "Publications" page for possible new titles.

  • Sainju, U.M., Jabro, J.D., Stevens, W.B. 2008. Soil carbon dioxide emission and carbon sequestration as influenced by irrigation, tillage, cropping system, and nitrogen fertilization. Journal of Environmental Quality. 37:98-106.

  • Jabro, J.D., Evans, R.G., Stevens, W.B., Iversen, W.M. 2008. Repeatability of soil apparent electrical conductivity measured by a coulter sensor. Soil Science. 173(1):35- 45.

  • Taulealea, S., Held, D.J., Stevens, W.B., Bradley, D. 2007. Precision fertilization of Wyoming sugar beets: A case study. Journal of American Society of Farm Managers and Rural Appraisers. 70:44-47.

  • Stevens, W.B., Blaylock, A.D., Hopkins, B.G., Ellsworth, J.W., Krall, J.M. 2007. Sugarbeet Yield and Nitrogen Use Efficiency with Pre-plant Broadcast, Banded, or Point- Injected Nitrogen Application. Agronomy Journal. 99:1252-1259.

  • Jabro, J.D., W.B. Stevens, and R.G. Evans. 2006. Spatial Relationships among Soil Physical Properties in a Grass-Alfalfa Hay. Soil Science. 17:719-727.

  • Jabro, J.D., Evans, R.G., Kim, Y., Stevens, W.B., Iversen, W.M. 2006. Characterization of spatial variability of soil electrical conductivity and cone index using coulter and penetrometer-type sensors. Soil Science. 171(8):627-637.

  • Evans, R.G., Iversen, W.M., Stevens, W.B. 2006. Strip-Till Research on Beets. The Sugarbeet Grower. 45(2):16-19.

  • Jabro, J.D., Evans, R.G., Kim, Y., Stevens, W.B., Iversen, W.M. 2005. Spatial Variability of Apparent Electrical Conductivity and Cone Index As Measured with Sensing Technologies: Assessment and Comparison. In: 2005 Pacific Northwest Section Meeting, September 22-24, 2005, Lethbridge, Alberta, Canada. Paper Number PNW05-017. St. Joseph, MI.: Asae.

  • Jabro, J.D., Stevens, W.B., Evans, R.G. 2005. Spatial Variability of Physical Properties in Lihen Sandy Loam Soils. In: Agronomy Abstracts. Asa-Cssa-Sssa International Annual Meetings, November 6-10, 2005, Salt Lake City, Utah. Cd-Rom.

  • Tarkalson, D.D., Hergert, G.W., Stevens, W.B., Mccallister, D.L., Kachman, S.D. 2005. Fly Ash as a Liming Material for Corn Production. Agronomy Journal. 170:386-398.

  • Stevens, W.B., Mesbah, A.O. 2005. Zinc Sulfate Applied to Sugarbeet Using Broadcast, Seed-Placed, and Foliar Methods. In: Proceedings of the Western Nutrient Management Conference. March 2, 2005. Salt Lake City, UT. 6:200-207.

  • Stevens, W.B., Hoeft, R.G., Mulvaney, R.L. 2005. Fate of Nitrogen-15 in a Long-Term Nitrogen Rate Study: I. Interactions with Soil Nitrogen. Agronomy Journal. 97(4):1037-1045.

  • Stevens, W.B., Hoeft, R.G., Mulvaney, R.L. 2005. Fate of Nitrogen-15 in a Long-Term Nitrogen Rate Study: II. Nitrogen Uptake Efficiency. Agronomy Journal. Vol. 97(4):1046-1053.

  • Stevens, W.B., and A.O. Mesbah.  2004.  Zinc enhances sugar beet emergence and yield on high-ph soils of marginal zinc status.  Online. Crop Management doi:10.1094/CM-2004-0805-01-RS.

  • Mesbah, A.O., and W.B. Stevens.  2004. Redstem filaree control in sugarbeet.  Online. Crop Management 10.1094/CM-2004-0826-01-RS.

  • Stevens, W.B., R.G. Hoeft, and W.R. Peterson.  2003.  Nitrogen fertilizer requirement for inbred corn following corn or soybean.  Online. Crop Management doi:10.1094/CM-2003-1126-01-RS.

  • McCallister, D.L., K.D. Frank, W.B. Stevens, G.W. Hergert, and R.R. Renken.  2002.  Coal fly-ash as an acid-reducing soil amendment and its side effects.  Soil Science. 167:811-820.

  • Bernards, M.L. V.D. Jolley, W.B. Stevens and  G.W. Hergert.  2002.  Phytosiderophore release from nodal, primary, and complete root systems in maize.  Plant Soil. 241:105-113.

  • Stevens, W.B., R.L. Mulvaney, S.A. Khan and R.G. Hoeft.  2000.  Improved diffusion methods for nitrogen and nitrogen-15 analysis of Kjeldahl digests.  Journal of Association of Official Analytical Chemists International. 83:1039-1046.

  • Mulvaney, R.L., S.A. Khan, G.K. Sims, and W.B. Stevens.  1997.  Use of nitrous oxide as a purge gas for automated nitrogen isotope analysis by the Rittenberg technique.  Journal of Automated Chemistry. 19:165-168.

  • Mulvaney, R.L., S.A. Khan, W.B. Stevens, and C.S. Mulvaney.  1997.  Improved diffusion methods for determination of inorganic nitrogen in soil extracts and water.  Biology and Fertility of Soils. 24:413-420.

  • Jolley, V.D., K.A. Cook, N.C. Hansen, and W.B. Stevens.  1996.  Plant physiological responses for genotypic evaluation of iron efficiency in strategy I and II plants - A review. Journal of Plant Nutrition. 19:1241-1255.

  • Stevens, W.B., V.D. Jolley, and N.C. Hansen.  1994.  Diurnal rhythmicity of root iron-reducing activity in soybean as affected by various light regimes. Journal of Plant Nutrition. 17:2193-2204.

  • Stevens, W.B., V.D. Jolley, N.C. Hansen, and D.J. Fairbanks.  1994.  Modified procedures for commercial adaptation of root iron-reducing capacity for use as a screening technique. Journal of Plant Nutrition.

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