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ZHENGXIA DOU, B.S., M.S., PhD
Professor, Agricultural Systems, University of Pennsylvania School of Veterinary Medicine, Department of Clinical Studies, New Bolton Center

Nutrient management specialist (provisional), PA Department of Agriculture.

Research Areas: Agroecosystems, Agroecosystems, Animal Production, Antibiotic resistance, Farm management, Manure-borne pathogens, Agriculture, Dairy Farms

Contact Information:
University of Pennsylvania School of Veterinary Medicine Dept of Clinical Studies New Bolton Center 382 West Street Road
 Phone 610-925-6242
 Fax 610-925-6823
 Email douzheng@vet.upenn.edu

Transformation and transport of nutrients in agro-ecosystems.
Environmental fate of manure-borne pathogens, pharmaceuticals, and implications for public health.
Agricultural productivity, sustainability, and global food security.

Dou Z, Toth JD, Galligan DT, Ramberg CF, Ferguson JD Laboratory procedures for characterizing manure phosphorus. J. Environ. Qual. 29: 508-514, 2000.

Dou Z, Galligan DT, Allshouse RD, Toth JD, Ramberg CF Jr, Ferguson JD Manure Sampling for Nutrient Analysis: Variability and Sampling Efficacy Journal of Environmental Quality 30: 1432-7, 2001.

Dou Z., Knowlton KF., Kohn RA., Wu Z., Satter LD., Zhang G., Toth JD., Ferguson JD. Phosphorus characteristics of dairy feces affected by diets Journal of Environmental Quality 31: 2058-65, 2002.

Dou Z, Zhang GY, Stout WL, Toth JD, Ferguson JD Efficacy of Alum and Coal Combustion By-Products in Stabilizing Manure Phosphorus J. Environ. Qual. 32: 1490-7, 2003.

Dou Z, Ferguson JD, Fiorini J, Toth JD, Alexander SM, Chase LE, Ryan CM, Knowlton KF, Kohn RA, Peterson AB, Sims JT, Wu Z Phosphorus Feeding Levels and Critical Control Points on Dairy Farms J. Dairy Sci. 86: 3787-95, 2003.

You, Y., S. Rankin, H. Aceto, C. Benson, and Z. Dou. Fate of Salmonella Newport in manure and manured-soil. Appl. Environ. Microbiol. 72: 5777-5783, 2006.

Dou Z, Ramberg CF, Toth JD, Wang C, Sharpley AN, Boyd SE, Chen CR, Williams D, Xu ZH Phosphorus Speciation and Sorption-Desorption Characteristics in Heavily Manured Soils. Soil Sci. Soc. Am. J. 73: 93-101, 2009.

Toth, J.D., Y. Feng, Z. Dou Veterinary Antibiotics at Environmentally Relevant Concentrations Inhibit Soil Iron Reduction and Nitrification. Soil Biol Biochem 43: 2470-2472, 2011.

B.S. Yan'an University, China, 1982

M.S. Chinese Academy of Sciences, 1985

PhD Penn State University, 1993