Contact Information:

Research Areas:
Mineralogy and surface chemistry of fibrous clays and aluminum hydroxides
Interaction of clays with cell membranes
Adsorption of organic compounds by soils and clays
Movement of fertilizers and pesticides in the soil
Spectral reflectance characteristics of soils
Soil pH and its relationship to weed growth and soil development
Co-developed and patented a soil organic matter sensor to aid in site-specific management of soils.

Most Significant Publications:
Kladivko, E.J., J. Grochulska, R.F. Turco, G.E. Van Scoyoc, and J.D. Eigel. 1999. Pesticide and nitrate transport into subsurface tile drains of different spacings, J. Environ. Qual. 28:997-1004.

Oscarson, D.W., G.E. Van Scoyoc, and J.L. Ahlrichs. 1986. Lysis of erythrocytes by silicate minerals. Clays and Clay Miner. 34:74-80. 

Van Scoyoc, G.E., C. Serna, and J.L. Ahlrichs. 1979. Structural changes in palygorskite during dehydration and dehydroxylation. Am. Mineral 64:215-223. 

Teaching: 
Agronomy 251 - Introduction to Soils
Agronomy 255 - Soil Science
Agronomy 696 - Professional Presentations
Development of Web-based Soil Science Modules
Executive Committee University Teaching Academy

Professional Experience:
Professor of Agronomy, Purdue University, 1984-present
Associate Executive Vice President for Academic Affairs, Purdue University, 1992-2001
American Council on Education Fellow, Office of the President, Wabash College, 1989-1990
Visiting Associate Professor of Soil Science, North Carolina State University, 1983-1984
Assistant and Associate Professor of Agronomy, Purdue University, 1976-1984

Awards and Honors:
Purdue University Book of Great Teachers, 1999
The Ohio State University College of Agriculture Distinguished Alumni Award, 1992
American Council on Education Fellow, 1989-1990
Soil Science Society of America Education Award, 1989
Fellow, Soil Science Society of America, 1988; NACTA, 1988; American Society of Agronomy, 1987
American Society of Agronomy Agronomic Education Award, 1985; ASA CIBA-Geigy Award, 1985
Purdue University Amoco Outstanding Teacher Award, 1985
School of Agriculture Outstanding Teacher Award, 1985; Outstanding Counselor Award, 1983
Purdue University Best Counselor Award (Omicron Delta Kappa), 1983

Education:
B.S. (Agronomy) - The Ohio State University, 1969
M.S. (Soil Chemistry) - The Ohio State University, 1972
Ph.D. (Soil Chemistry/Mineralogy) - Purdue University, 1976

Date joined staff:  August 1976

Last updated:  May, 2007