John M. Duxbury
Soil Chemistry

917Bradfield Hall (607) 255-1732 E-mail: jmd17@cornell.edu BS (Chemistry) 1963 University of Birmingham, England PhD (Chemistry) 1966 University of Birmingham, England John Duxbury, Professor of Soil Organic Chemistry, joined the Cornell faculty in 1970. Prior to that he had been a Research Associate at Cornell (1967-70) and at the Chester Beatty Cancer Research Institute in London, England (1966-67). He was a visiting Professor at the University of Florida in 1977. Professor Duxbury has served as Associate Editor and Division Chairman for the Soil Science Society of America and has consulted with several companies and agencies on agricultural and environmental quality issues. He presently is Director of Cornell's Agricultural Ecosystems program.

Research Program Dr. Duxbury's research has focussed on C,N,P, and S transformations and behavior in soils relative to agronomic production and environmental quality in temperate and tropical environments. Much of his research is directed toward developing basic information and understanding which can then be used in an applied setting. Current research activities include: (1) Nitrogen and phosphorus cycle processes in upland and flooded soils. The applied objective is to improve fertilizer N recovery by crops. (2) Functions and dynamics of soil organic matter. The applied objective is to identify appropriate practices for management of soil organic matter. (3) Greenhouse gas fluxes and feedbacks in agricultural ecosystems, including research on CH4, N2O, and soil C dynamics. The applied objective is to reduce agricultural contributions to the atmospheric greenhouse effect. (4) Sustainability of post green revolution agriculture. Current research on the rice-wheat rotation in S. Asia focuses on soil constraints to productivity and nutritional outcomes of the agriculture.

Courses Taught SCAS 385. Biogeochemical Cycles, Agriculture and the Environment SCAS 669. Organic Matter - Soils, Sediments and Waters Selected Publications Mayer, A.M.B., M.C. Latham, J.M. Duxbury, E.A. Frongillo, N. Hassan, and T. Biswas. 2003. The zinc content of rice in Bangladesh: relationship to soil, production methods, diets and the zinc status of children. FASEB Journal 17:Abstract No. Duxbury, J.M., A.B. Mayer, J.G. Lauren, and N. Hassan. 2003. Food chain aspects of arsenic contamination in Bangladesh: Effects on quality and productivity of rice. Journal of Environmental Science and Health Part A Toxic Hazardous Substances and Environmental Engineering A38:61-69. Martinez, C.E., M.B. McBride, M.T. Kandianis, J.M. Duxbury, S.j. Yoon, and W.F. Bleam. 2002. Zinc-sulfur and cadmium-sulfur association in metalliferous peats: Evidence from spectroscopy, distribution coefficients, and phytoavailability. Environmental Science and Technology 36:3683-3689. Padgham, J., G. Abawi, J. Duxbury, and A. Mazid. 2002. Impact of Meloidogyne graminicola on yield of lowland rainfed rice in Bangladesh. Nematology 4:213. Padgham, J.L., G.S. Abawi, J.M. Duxbury, and M.A. Mazid. 2002. Impact of Meloidogyne graminicola on yield of lowland rainfed rice in Bangladesh. Phytopathology 92:S62. Mayer, A.M.B., M.C. Latham, J.M. Duxbury, N. Hassan, E.A. Frongillo, and T. Biswas. 2002. Micronutrient deficiencies in Bangladesh: A new approach to explore connections between human, plant and soil deficiencies. FASEB Journal 16:A749. Kataki, P.K., S. Bedi, C.L. Arora, J.G. Lauren, and J.M. Duxbury. 2001. Performance of micronutrient enriched wheat seeds on three soil types. Journal of New Seeds 3:13-21.