The Adapt-N tool (Melkonian et al., 2007) is an excellent adaptation strategy to climate change,
because it explicitly accounts for weather conditions, by building on new advances in Web
technology, fast database access, new high-resolution climate data, and a well-calibrated
computer model. Adapt-Nis a web-based decision tool (http://adapt-n.eas.cornell.edu/)
developed at Cornell University that uses a dynamic simulation model and links to the high
resolution weather data (3x3 milegrid) stored at the Cornell Center for Advanced Computing.
Model users can thus apply the model to individual fields or farms and receive a recommended
sidedress N rate from computer simulations based on field-specific crop and soil inputs and high-
5
resolution weather data. Adapt-Ncan be used in both manured and non-manured corn
productions systems (grain, silage and sweet corn), for different years within rotations, and for
at-planting or sidedress N applications. It can also be used for retrospective evaluation and whatif scenario-testing at the end of the growing season, allowing the user to improve their
understanding of the system and adapt their management strategy. The tool is based on extensive
research efforts and has been validated in experiments