Chad J. Penn
Assistant Professor
Soil and Environmental Chemistry
 |
Chad J. Penn Oklahoma State University Department of Plant and Soil Sciences 368 Agricultural Hall Stillwater, OK 74078-6028 Office Location: 367 Agricultural Hall Lab Location: 365 Agricultural Hall Phone Number: 405-744-2746 FAX Number: 405-744-0354 chad.penn@okstate.edu |
| Professional Info | |
Education
| B.S. Penn State University |  |
| M.S. University of Delaware |  |
| Ph.D Virginia Tech |  |
Recent Press
Publications:
Warren, J.G., C.J. Penn, J.M. McGrath, and K. Sistani. 2008. The impact of alum additions on organic P transformations in poultry litter and soils receiving alum-treated poultry litter. J. Environ. Qual. In Print.
Penn, C.J., R.B. Bryant, and P.A. Kleinman. 2007. Sequestering dissolved phosphorus from ditch drainage water. J. Soil Water Cons. 62:269-272.
Penn, C.J., B.A. Needleman, P.A. Kleinman, and R.B. Bryant. 2007. Quantifying spatial variability in soil phosphorus at a field scale: implications to runoff and soil sampling. Soil Sci. 172:797-810.
Penn, C.J., and R.B. Bryant. 2007. Phosphorus solubility in response to acidification of dairy manure-amended soils. Soil Sci. Soc. Am. J. In Print.
Penn, C.J., and R. Bryant. 2006. Application of phosphorus sorbing materials to streamside cattle loafing areas. J. Soil Water Cons.61:303-310.
Penn, C.J., G.L. Mullins, L.W. Zelazny, and A.N. Sharpley. 2006. Estimating dissolved phosphorus concentrations in runoff from three physiographic regions of Virginia. Soil Sci. Soc. Am. J. 70:1967-1974 .
Warren, J.G., S.B. Phillips, G.L. Mullins, D.A. Keahey, and C.J. Penn. 2006. Environmental and production consequences of using alum-amended poultry litter as a nutrient source for corn. J. Environ. Qual. 35: 303-311
Penn, C.J., and R. Bryant. 2006. Incubation of dried and sieved soils can induce calcium phosphate precipitation/adsorption. Comm. in Soil Sci. and Plant Anal. 37:1437-1449.
Penn, C.J., G.L. Mullins, and L.W. Zelazny. 2005. Mineralogy in relation to phosphorus sorption and dissolved phosphorus losses in runoff. Soil Sci. Soc. Amer. J. 69: 1532-1540
Penn, C.J., G.L. Mullins, L.W. Zelazny, J.G. Warren, and J.M. McGrath. 2004. Surface runoff losses of phosphorus from Virginia soils amended with turkey manure using phytase and HAP corn diets. J. Environ. Qual. J. Environ Qual.33:1431-1439
Penn, C.J. and J.T. Sims. 2002. Phosphorus forms in biosolids-amended soils and losses in runoff: effects of wastewater treatment process. J Environ. Qual. 31:1349-1361
Vadas, P.A., J.T. Sims, A.B. Leytem, and C.J. Penn. 2002. Modifying FHANTM 2.0 to estimate phosphorus concentrations in runoff from Mid-Atlantic coastal plain soils. Soil Sci. Soc, Amer. J. 66:1974-1980.
Presentations
Penn, C.J., J. Warren, K. Cook, M. Rothrock, and J.M. McGrath. 2007. Nutrient dynamics in decomposing poultry litter. SERA-17 Annual Meeting, July 7 -9, Fayetteville, AR.
White M., D. Storm, H. Zhang, C. Penn, P. Busteed, M. Smolen, and G. Fox. 2007. Proposed Updates to the Soil and Water Assessment Tool (SWAT) Phosphorus Model. SERA-17 Annual Meeting, July 7 -9, Fayetteville, AR.
White M., D. Storm, P. Busteed, H. Zhang, M. Smolen, G. Fox, and C. Penn. 2007. Quantitative P Index Development to Meet Numeric Water Quality Standards. SERA-17 Annual Meeting, July 7 -9, Fayetteville, AR.
Professional Activiites
Associate Editor, Journal of Environmental Quality
Member, American Society of Agronomy and Soil Science Society of America
Oklahoma NRSC EQIP Committee
Member, Professional Soil Scientists of Oklahoma
