Hello Dr. Cadisch and others interested in sugarcane modeling : The sugarcane model is being developed by Dr. Inman-Bamber from South Africa, in collaboration with Greg Kiker, Jim Jones from Florida and myself. The University of Hawaii and the Chiang Mai University in Thailand are interested in testing and applying the model for their local conditions. The current version of the sugarcane model has a water balance only. Work is underway to get the nitrogen balance working. The system basically uses the same soil water and nitrogen balance of the CROPGRO and CERES models. One the N component works, you should be able to study organic matter and residue issues. We currently have an in-house version available not really ready for release yet. Regards, Gerrit Hoogenboom Associate Professor Department of Biological and Agricultural Engineering The University of Georgia Griffin, Georgia 30223-1797, USA Phone: 770-228-7216 FAX: 770-228-7218 E-Mail: [log in to unmask] Please note the new area code 770 !