University of Kentucky College of Agriculture

Frank J. Sikora



Directions to University of Kentucky, Lexington, KYUniversity of Kentucky, PSS
Campus LocationRegulatory Service Bldg
1600 University Drive (Office:135)
Lexington, KY 40546-0275
Phone(859) 257-2785
Fax(859) 257-7351


Soil Testing

B.S. West Virginia University, 1980
M.S. University of Tennessee, 1982
Ph.D. University of Illinois, 1986

Soil-Plant relationships
Analytical chemistry in soil analysis
Chemical Equilibria

1998-present. Soil Testing Coordinator and Adjunct Associate Professor, University of Kentucky
1996-1998. Team Leader for Constructed Wetlands Research Team, Biotechnology, TVA Environmental Research Center, Muscle Shoals, AL.
1987-1995. Research Chemist, Biotechnology, TVA Environmental Research Center, Muscle Shoals, AL
1991-1998. Associate Adjunct Professor, Department of Agronomy and Soils, Auburn University, Auburn, AL.
1986-1987. Postdoctoral Associate, Dept. of Agronomy, Cornell

My Site



This person page last updated on 2010-02-22


    Pls650 - Soil-Plant Relationships; Credits - 3
    An advanced course on the relationships between media and the root systems of plants growing therein. Prereq: PLS 366, BIO 430G (or equivalent), or consent of instructor. .
    Instructors: Frank J. Sikora

Research/Teaching Publications

    Refereed Journal Articles

    Chien, S. H., F. J. Sikora*, R. J. Gilkes, and M. J. McLaughlin. 2012. Response to the letter to the editor by A. E. Johnston and D. Curtin. Nutrient Cycling in Agroecosystems 93(2): 249-251.
    Chien, S. H., F. J. Sikora*, R. J. Gilkes, and M. J. McLaughlin. 2012. Comparing of the difference and balance methods to calculate percent recovery of fertilizer phosphorus applied to soils: a critical discussion. Nutrient Cycling in Agroecosystems 92(1): 1-8.
    D'Angelo, E., G. Zeigler, G. Beck, J. Grove, and F. Sikora. 2012. Arsenic species in Broiler (Gallus gallus domesticus) Litter, Soils, Maize, (Zea mays L.), and groundwater from the Litter-Amended Fields. Science of the Total Environment 438: 286-292.
    Authors in PSS Dept.: Frank J. Sikora Georgia Zeigler Elisa DAngelo John Grove
    Sikora, F. J. 2012. Double-Buffer Methods Revisited with Focus on Ionic Strength and Soil/Solution Ratio. Soil Science of America Journal. 76(2): 718-732. Published online: doi: 10.2136/sssaj2010.0442.
    Tunney, H., F.J. Sikora, D. Kissel, A. Wolf, L. Sonon, and K. Goulding. 2010. A comparison of lime requirements by five methods on grassland mineral soils in Ireland. Soil Use and Management 26(2):126-132. Published online: doi: 10.1111/j.1475-2743.2010.00263.x.
    Weand, M.P., M.A. Arthur, G.M. Lovett, F. Sikora, and K.C. Weathers. 2010. The phosphorus status of northern hardwoods differs by species but is unaffected by nitrogen fertilization. Biogeochemistry 97:2-3.
    D’Angelo, E.M., M.V. Vandiviere, W.O. Thom, and F.J. Sikora. 2003. Estimating soil phosphorus requirements and limits from oxalate extract data. Journal of Enviromental Quality Quality 32: 1082-1088.
    Authors in PSS Dept.: Frank J. Sikora William Thom Martin Vandiviere Elisa DAngelo

    Proceedings Publications

    Sikora, F.J. 2006. A buffer that mimics the SMP buffer for determining lime requirement of soil Soil Sci. Soc Am. J. Publication URL
    Sikora, F.J., P.S. Howe, L.E. Hill, D.C. Reid, D.E. Harover 2005. Comparison of Colorimetric and ICP Determination of Phosphorus in Mehlich3 Soil Extracts Commun. Soil Sci. and Plant Anal. Publication URL

College Numbered Extension Publications