The free upgrade package is provided to those who bought one of the earlier versions of Hybrid-Maize (ver. 2004 or 2005).

To download the upgrade package, click HERE. After downloading, unzip the package, then run the file 'HMupgrade.exe'

To purchase the normal version of the program, please go to the online store (temporarily not available) or order page (vial postal mail).

The Expanded Weather Database for use with the model program can be purchase (downloadable version) at the online store (currently not available).

Thank you for using the Hybrid-Maize model.