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Department of Agronomy

Department of Agronomy
Kansas State University
2004 Throckmorton PSC
1712 Claflin Road
Manhattan, KS 66506-0110

Ph: +1-785-532-6101
Fx: +1-785-532-6094

Research Projects

Soil Biogeochemical Transformation

My research program in Soil and Environmental Chemistry involves laboratory and field experiments on agricultural soils, contaminated urban soils, and mine-impacted soils/geomaterials in order to understand biogeochemical transformation of nutrient and potentially toxic elements and their role in controlling soil-plant transfer, mobility, and attenuation processes. Primary focus areas presently include:
  • Determining reaction products of different P fertilizer sources in soils to understand their relationship to potential availability and plant uptake. The objective is to aid in the design of better and more efficient P fertilizers and P management practices
  • Evaluating the impacts of contaminants on food safety from urban gardens and other types of local farming activities on brownfield sites
  • “In situ” soil remediation involving the formation of stable solid phases, chemisorption, and phytostabilization to reduce soil-plant transfer of potentially toxic elements and/or reduce transportation of contaminated soils by air and water
  • Investigating the role of soil mineralogy and chemistry to aggregation and soil C sequestration in agroecosystems
  • Understanding complex redox transformations of potentially toxic trace elements and interactions between molecular level and macro-scale biotic and abiotic processes on the health of our soil/geo environments and water bodies

Instruments

  • Graphite Furnace - Atomic Absorption Spectrometry
  • High Performance Liquid Chromatography
  • Inductively Coupled Plasma-Atomic Emission Spectrometry
  • Ion Chromatography
  • UV/Visible Spectrophotometer
  • X-ray Fluorescence Analyzer