Deb Jaisi

Department of Plant and Soil Sciences

Deb Jaisi

Professor of Environmental Biogeochemistry

Office location:

400J Harker ISE Lab
Newark, DE 19716

Resources and links


  • Postdoc – Yale University, New Haven, CT
  • Ph.D. – Miami University, Oxford, OH
  • M.S. – Asian Institute of Technology, Bangkok, Thailand
  • M.S. – Tribhuvan University, Kathmandu, Nepal

Current courses


The Environmental Biogeochemistry Laboratory (EBL) focuses research on biogeochemical processes revolving around phosphorus (P) under three axes: i) P as an essential nutrient for all living beings, ii) P as a contaminant to open waters, and iii) P as a biocidal agent (e.g., herbicide). EBL research is carried over a trillion-fold scale range, from chemical bond formation/cleavage to micro-macro scale processes in soil and sediment and to landscape and ecosystem processes. The ecosystem-scale research seeks to address questions on source, sink, transformation, and internal cycling of phosphorus in terrestrial and coastal environments.

Professional Activities

  • Member, Sigma Xi Society
  • Member, American Geophysical Union
  • Member, Geological Society of America
  • Member, Soil Science Society of America