Johnson, Robert J., author2020-04-232020-04-232009-02https://hdl.handle.net/10217/205814Presented at the 21st annual Central Plains irrigation conference on February 24-25, 2009 in Colby, Kansas.born digitalCD-ROMsproceedings (reports)engCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.Text