BIO: Dr. Matt Helmers is an Associate Professor and Extension Agricultural Engineer in the Department of Agricultural and Biosystems Engineering at Iowa State University. His research and extension focus at Iowa State is in the areas of water quality and water resources management. In particular, he is studying water quality effects of agricultural best management practices including strategic placement and design of buffer systems and methods to improve water quality in tile drained landscapes. He is active in investigating the impacts of cropping practices, fertilization practices, and subsurface drainage management practices on drainage water quality and crop production. His Extension program is focused on education of producers and other stakeholders on the impacts of agricultural practices on water resources and water quality and on implementation of practices to reduce potential impacts.