This 90 minute workshop will help researchers, crop consultants, professional agronomists and farm managers learn to use the Data-Intensive Farm Management project’s cyber-infrastructure to work with farmers to conduct and implement on-farm precision experiments (OFPEs), and to draw management implications from the analysis of the resultant data.  DIFM works with participating farmers, using GPS-reliant precision agriculture technology to conduct large-scale agronomic field trials on farmers' own fields, to generate yield, input management, and field characteristics data in quantities and of quality only recently imaginable.  DIFM's research also looks at the effects of fertilizer management practices on water quality, with the aim of discovering efficient means to reducing the loss of nitrogen fertilizer into the Mississippi River basin.  Participants will work on their personal laptops during the workshop.