Hello, What is the maximum number of treatments that can be simulated within a single experiment file? I am trying to simulate maize yield for a large number of cultivars (N >100) within a single experimental file. DSSAT runs fine on the first 100 treatments, but then it quits giving me the following error: "Error in field inputs. check format. File: ZZ018484.MZX line 232 Error key: IPFLD" I would appreciate any suggestions that people have on how I can fix this problem. Also, if anyone has created an experimental file with more than 100 treatment levels I would appreciate it if you would be willing to send me a copy. Maybe by looking at the format of a working experimental I can figure out where the read error is occurring. Thanks in advance, Steven Quiring ======================================= Steven Quiring PhD Candidate Department of Geography 216 Pearson Hall University of Delaware Newark, DE 19716-2541 Phone: (302)831-2344 Fax: (302)831-6654 Email: [log in to unmask] Homepage: http://udel.edu/~squiring/ =======================================