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Timing the Last Irrigation using COTMAN in a Lepa Irrigation System

Tommy Doederlein, Brant Baugh, Randy Boman, and Dana Porter

ABSTRACT

The goal of water management is to meet the crop demand while optimizing yield with the irrigation available. Terminating irrigation at the end of the season is always a difficult decision and one that producers struggle with every year. In the absence of late-summer and/or early-fall rains, terminating LEPA irrigation at 400 HU past cutout or before is too soon. The most economical target for timing the termination of LEPA irrigation appears to be when 600HU past cutout has been accumulated.





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Document last modified 04/27/04