RESEARCH INTERESTS:

• Effect of instructional techniques on learning;
• Phosphorus chemistry in agricultural soils;
• Intensive management effects on urban soils

COURSES TAUGHT:

• AGRO/HORT/SOIL 153 Soil Resources
• AGRO/NRES/SOIL 455/855 Soil Chemistry and Mineralogy
• AGRO 958 Soil Physical Chemistry
• AGRO 201 Agronomic Internship and Career Preparation

MAJOR PROJECT ACTIVITIES:

My classroom research involves determining to what degree student perceptions of natural resources are affected by education about soil science. I am also interested in the effectiveness of different instructional approaches on learning. My soil science research consists of two principal areas: Reactions of phosphorus in soils, especially from biosolids; and how intensive management of urban soils affects their long-term quality and use. The objectives of my phosphorus work are to maximize the efficiency of phosphorus availability from organic sources such as sludges and manures, and minimize the possible negative environmental effects of such applications.

SELECTED PUBLICATIONS:

• Renken, Roger R., Dennis L. McCallister, David D. Tarkalson, Gary W. Hergert, and David B. Marx. 2006. Barley seedling growth in soils amended with fly ash or agricultural lime followed by acidification. Soil Science. 171:414-422.
  
  
• McCallister, D.L., D.J. Lee and S.C. Mason. 2005. Student numbers in agronomy and crop science in the United States: History, current status, and possible actions. NACTA J. 49(3):24 -29.
  
  
• Mamo, Martha, Daniel Ginting, William Zanner, Dennis McCallister, Roger Renken, Charles Shapiro, and Bahman Eghball. 2005. Stratification of Soil Phosphorus and Increased Potential for Runoff Loss After Long-term Manure Application. J. Soil and Water Cons. 60:243-250.
  
  
• Tarkalson, D.D., G.W. Hergert, W.B. Stevens, D.L. McCallister, and S. Kachman. 2005. Fly ash as a liming material for corn production. Soil Science. 170:386-398.
  
  
• Akhtar, M., D.L. McCallister, D.D. Francis, and J.S. Schepers. 2005. Manure source effects on soil phosphorus fractions and their distribution. Soil Science. 170:183-190.
  
  
• Mamo, M., T. Kettler, D. Husmann, and D. McCallister. 2004. Assessment of an On-line Erosion Lesson as a Teaching Tool in Introductory Soil Science. NACTA J. 48(3):47-52.
  
  
• M. Akhtar, D.L. McCallister, and K.M. Eskridge. 2002. Availability and fractionation of phosphorus in sewage sludge-amended soils. Commun. Soil Sci. Pl. Anal. 33:2057-2068.
  
  
• D.L. McCallister, M.A. Bahadir, and J.M. Blumenthal. 2002. Phosphorus partitioning and phosphatase activity in semi-arid region soils under increasing crop growth intensity. Soil Science. 167:616-624
  
  
• Dennis L. McCallister, Kenneth D. Frank, W. Bart Stevens, Gary W. Hergert, Roger R. Renken, and David B. Marx. 2002. Coal fly ash as an acid-reducing soil amendment and its side-effects. Soil Science. 167:811-820
  
  
• McCallister, Dennis L., Betsy K. Dierberger, and Robert C. Sorensen. 2001. A land use planning exercise using soil survey reports. NACTA J. 45(4):55-61. Click here to go to DEVELOPING A SOIL USE PLAN, Module 15.
  
  
• D.L. McCallister and W.L. Chien. 2000. Organic carbon quantity and forms as influenced by tillage and cropping sequence. Comm. Soil Sci. Pl. Anal. 31:465-479.
  
  
• Jenks, Brian, Fred W. Roeth, Alex R. Martin, and Dennis L. McCallister. 1998. Influence of surface and subsurface soil properties on atrazine sorption and degradation, Weed Science. 46:132-138.
  
  
• Duffy, C.C., D.L. McCallister, and R.R. Renken. 1997. Carbon tetrachloride retention by modern and buried soil A horizons. J. Environ. Qual. 26:1123-1127.
  
  
• McCallister, D.L., L.A. Jawson, and M.D. Jawson. 1997. Soil temperature and fumigation effects on plant phosphorus uptake and related microbial properties. J. Plant Nutr. 20:485-497.
  
  
• Verstraeten, I.M., D.T. Lewis, D.L. McCallister, A. Parkhurst, and E.M. Thurman. 1996. Relation of landscape position and irrigation to concentrations of alachlor, atrazine, and selected degradates in regolith in northeastern Nebraska. pp 178-197. In. M.T. Meyer and E.M. Thurman (ed.). Herbicide metabolites in surface water and groundwater. American Chemical Society. Washington, D.C.
  
  
• Eghball, B., L.N. Mielke, D.L. McCallister, and J.W. Doran. 1994. Distribution of organic carbon and inorganic nitrogen in a soil under various tillage and cropping sequences. J. Soil Water Cons. 49:201-205.
  
  
• Stolpe, N.B., D.L. McCallister, P.J. Shea, D.T. Lewis, and R. Dam. 1993. Mobility of aniline, benzoic acid, and toluene in four soils and correlation with soil properties. Environ. Pollut. 81:287-295.