I'm trying to track down the source code for the newest version of Generic CERES. I understand that there is now a verson with a phosphorus balance. Is this available for field testing? I would like to add some limited pest damage (hail, detasseling, disease) effects to the model, and would like to do this using the most current version. Please contact me directly if you have know who I can contact. Bill Batchelor Iowa State University Ag and Biosystems Engineering --------------------------------------------------------- Dr. William D. Batchelor Assistant Professor Agricultural and Biosystems Engineering Department Iowa State University Ames, IA 50011-3050 ph. 515-294-9906 fax 515-294-2552 email [log in to unmask] ----------------------------------------------------------