• Ph.D., University of Illinois, 1983, Soil Chemistry & Fertility.
• M.S., University of Missouri, 1978, Agronomy.
• B.S., University of Missouri, 1976, Agronomy.

University Appointments:

• 08/95 - present, Professor - Crop, Soil & Environmental Sciences/Agronomy, University of Arkansas, Fayetteville, AR
• 07/92 - 8/95, Professor - Agronomy, University of Arkansas, Rice Research & Extension Center, Stuttgart, AR 
• 07/87 - 6/92, Associate Professor - Agronomy, University of Arkansas, Rice Research and Extension Center, Stuttgart, AR
• 08/83 - 6/88, Assistant Professor - Agronomy, University of Arkansas, Rice Research and Extension Center, Stuttgart, AR

Service to University, College and Department:

• CSES Department Graduate Committee [1989-present].
• CSES Department Promotion and Tenure committee [2003-2006, 2008]
• Arkansas Soil Testing and Fertilizer Recommendation Committee [1984-present]
• Cooperative Extension Service Verification Advisory Committee [1984-present]
• Cooperative Extension Service DD-50 Computer Program committee [1984-present]
• Chairman of the CSES Department Social Committee [1995-present]
• Co-editor of the B.R. Wells Rice Research Series [1996-present]; 
• Chair of CSES Department Non-Classified Research Support Personnel Promotion Committee [2001-present]
• Member of CSES Department Awards Committee [2000-present]
• Ad hoc Committee to Review Station Publications [2000-present]
• AFLS-MS Steering Committee [1999-present]

Service to Professional Societies:

• Served the Rice Technical Working Group (RTWG) as: Chair of Local Arrangements committee, 1990-1992; Executive committee, 1992-1994; Chair of Nominations committee, 1996-1998; Secretary/Program Chair of 29th RTWG, 2000-2002; Chairman, 2002-2004; Past Chairman, 2004-2006; Author of RTWG Manual of Operating Procedures (2006).  Member of the Executive committee of the International Temperate Rice Conference, 1999.  Ex-officio board member of the Arkansas Plant Food Association (2000-present). Chair of Soil Science Society of America Div. S-4, Soil Fertility and Plant Nutrition.

• CSES 3332 -- Rice Production: A study of the principles and practices involved in rice culture world wide with major emphasis on the United States. Recitation 2 hours per week. Prerequisite: CSES 1203.
• CSES 5033 – Advanced Soil Fertility and Plant Nutrition:  A discussion oriented course for graduate students and undergraduate students (with permission) on the importance of plant nutrition in crop physiology and metabolism and the importance of chemical, biological and physical processes in soil that influence nutrient availability. Recitation 3 hours per week. Prerequisite: CSES 4224 or consent.
• CSES 5214 -- Analytical Research Techniques in Agronomy: Preparation and analysis of plant and soil samples utilizing spectrophotometry, isotopes, and chromatographic separation methods. Additionally, measurements are made of photosyntheses, respiration, water relationships, light, and temperatures in whole plants. Lecture 2 hours, lab 4 hours per week. Prerequisite: BOTY 4304, CHEM 2613, or consent. Corequisite: CSES 5210L.

• Investigation of the nitrogen balance (i.e., nitrogen utilization, nitrogen transformations, nitrogen losses and mechanisms, and nitrogen mineralization from soil and plant residues) in paddy and upland soils.
• Assessment of new nitrogen fertilizers, urease inhibitors, and nitrification inhibitors.
• Delineation of the nitrogen partitioning in plants and nitrogen loss from plants.
• Development of analytical procedures for the determination of nitrogen compounds in plants and soil.
• Development of soil based nitrogen tests to measure mineralizable soil nitrogen and allow for more precise nitrogen fertilizer recommendations on a site specific basis.
• Determining the availability in flooded soils of phosphorus, potassium, zinc and other essential nutrients required by the rice plant to produce sustainable grain yields.
• Use of radioactive and stable isotopes as tracers in soil and plant studies.
• Reclaiming problem precision-graded soils with poultry manure and other types of amendments.

Graduate Students:

Master of Science:

• Alice Enochs
  Thesis topic: A seasonal profile of nutrient concentrations in rice floodwater and surrounding waters.
• Van Dawson
   Thesis topic: Nutrient uptake comparison between hybrid rice and conventionally bred rice.
• Mike Duren
  Thesis topic: DD50 thermal unit accumulation requirements of the rice plant to reach critical growth stages when grown in different environments in Arkansas.   

Doctor of Philosophy:

• Trenton Roberts
  Dissertation topic:  Development and evaluation of a soil based nitrogen test for predicting the native soil nitrogen release in rice and wheat production systems.
•  Anthony Fulford
  Dissertation topic: Development and evaluation of a soil based nitrogen test for crops grown on clay soils.                                                                                       
• Vaughn Skinner
  Dissertation topic: Soil uniformity improvement of research station fields using spatial analysis.

·                     American Society of Agronomy

·                     Soil Science Society of America

·                     Rice Technical Working Group

·                     Arkansas Plant Food Association

• Rice Technical Working Group Distinguished Rice Research & Education Team Award, 2000
• University of Arkansas Division of Agriculture John White Team Research Award, 2004
• Rice Technical Working Group Distinguished Rice Research & Education Individual Award, 2006
• Southern Branch of the American Society of Agronomy Career Research Award, 2008
• Sigma Xi
• Gamma Sigma Delta

• Senior Editor of the Arkansas B.R. Wells Rice Research Series (1995-present); Senior or co-author of 4 book chapters; 90 refereed journal articles; 189 meeting abstracts; 253 non-refereed journal articles (e.g., Univ. Exp. Sta. Res. Ser. & Bull.; pop. press..); and 59 Coop. Ext. Ser. publications.

Selected Publications

• Bashir, R., R.J. Norman, R.K. Bacon and B.R. Wells. 1997. Accumulation and redistribution of fertilizer nitrogen-15 in soft red winter wheat. Soil Sci. Soc. Am. J. 61:1407-1412.
• Burgos, N.R., R.J. Norman D.R. Gealy, and H. Black. 2006. Competitive N uptake between rice and weedy rice. Field Crops Research. 99:96-105.
• Bushong, J.T., R.J. Norman, W.J. Ross, N.A. Slaton, C.E. Wilson, Jr., and E.E. Gbur, Jr. 2007. Evaluation of several indices of potentially mineralizable soil nitrogen. Comm. Soil Sci. & Plant Anal. 38:2799-2813.
• Bushong, J.T., T.L. Roberts, W.J. Ross, R.J. Norman, N.A. Slaton, and C.E. Wilson, Jr. 2008. Evaluation of Distillation and Diffusion Techniques for Estimating Hydrolyzable Amino Sugar-Nitrogen as a Means of Predicting N Mineralization. Soil Sci. Soc. Am. J. 72: 992-999.
• Copenhaver, L.M., M.C. Savin, D.M. Miller, P.J. Tomlinson, K.R. Brye, and R.J. Norman. 2006. Infiltration and short-term movement of nitrogen in a silt-loam soil typical of rice cultivation in Arkansas. Discovery 7:14-18.
• Golden, B.R, N.A. Slaton, R.J. Norman, E.E. Gbur, K.R. Brye, and R.E. DeLong. 2006. Recovery of nitrogen in fresh and pelletized poultry litter by rice. Soil Sci. Soc. Am. J. 70:1359-1369.
• Griggs, B.R., R.J. Norman, C.E. Wilson Jr., and N.A. Slaton. 2007. Ammonia volatilization and nitrogen uptake for conventional and conservation tilled dry-seeded, delayed flood rice. Soil Sci. Soc. Am. J. 71:745-751.
• Gilmour, J.T., A. Mauromoustakos, P.M. Gale, and R.J. Norman. 1998. Kinetics of crop residue decomposition: variability among crops and years. Soil Sci. Soc. Am. J. 62:750-755.
• Norman, R.J., D. Guindo, B.R. Wells and C.E. Wilson Jr. 1992. Seasonal accumulation and partitioning of nitrogen-15 in rice. Soil Sci. Soc. Am. J. 56:1521-1527.
• Norman, R.J., J.-F. Meullenet, and K.A.K. Moldenhauer (eds.). 2007. B.R. Wells Rice Research Studies 2006. Univ. of Ark., Agr. Exp. Stn. Res. Ser. 550.
• Norman, R.J., B.R. Wells, and K.A.K. Moldenhauer. 1989. Effect of application method and dicyandiamide on urea-nitrogen-15 recovery in rice. Soil Sci. Soc. Am. J. 53:1269-1274.
• Norman, R.J., C.E. Wilson, Jr., and N.A. Slaton. 2003. Soil fertilization and rice nutrition in U.S. mechanized rice culture. pp. 331-411. In C.W. Smith and R.H. Dilday (eds.). Rice: Origin, History, Technology, and Production. Wiley Sciences.
• Norman, R.J., C.E. Wilson, Jr., N.A. Slaton, D.L. Frizzell, A.L Richards, M.W. Duren, J.W. Gibbons, and K.A..K. Moldenhauer. 2006. Grain yield response of fifteen new rice cultivars to nitrogen fertilization. p.276-290. In R.J. Norman et al.(eds.), B.R. Wells rice research studies 2005. Univ. of Ark., Agr. Exp. Stn. Res. Ser. 540.
• Norman, R.J., C.E. Wilson, Jr., N.A. Slaton, D.L. Frizzell, W.J. Ross, J.T. Bushong, and A.L. Richards. 2006. Influence of urea and agrotain applied to a dry and muddy silt loam soil several days prior to flooding on ammonia volatilization and grain yields of delayed-flood rice. p. 291-297. In R.J. Norman et al.(eds.), B.R. Wells rice research studies 2005. Univ. of Ark., Agr. Exp. Stn. Res. Ser. 540.
• Ntamatungiro, S., R.J. Norman, R.W. McNew and B.R. Wells. 1999. Comparison of plant measurements for estimating nitrogen accumulation and grain yield by flooded rice. Agron. J. 91:676-685.
• Roberts, T.L., R.J. Norman, N.A. Slaton, C.E. Wilson, Jr., W.J. Ross, and J.T. Bushong. 2009. Direct steam distillation as an alternative to the Illinois soil nitrogen test. Soil Sci. Soc. Am. J. 73:1268-1275.
• Slaton, N.A., C.E. Wilson, Jr., R.J. Norman, and R.E. DeLong. 2006. Correlation of soil pH and Mehlich-3 phosphorus with postflood rice phosphorus concentrations in Arkansas. Comm. Soil Sci. & Plant Anal. 37:2819-2831.
• Wilson, C.E., P.K. Bollich, and R.J. Norman. 1998. Nitrogen application timing effects on nitrogen efficiency of dry seeded rice. Soil Sci. Soc. Am. J. 62:959-964.

Last updated: August 31 2009