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A Web-Based Advisory Service for Optimum Irrigation Management

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  2007 ASAE Annual Meeting  072253.(doi:10.13031/2013.23041)
Authors:   Carole Abourached, Charles Hillyer, Chadi Sayde, Marshall English, John Busch
Keywords:   Deficit irrigation, irrigation efficiency, spatial variability, online advisory service, crop yield modeling

Conventional irrigation practices are predicated on maximizing crop yield – a biological objective. As worldwide competition for water intensifies, a fundamentally new paradigm for irrigation management is emerging predicated on maximizing net returns to water – an economic objective. Maximizing returns to water generally involves some degree of deficit irrigation, particularly when water supplies or system constraints limit the availability of water, but few farmers are well equipped to deal with the analytical challenges associated with managing water deficits. This paper presents a web-based advisory service for irrigation management. The system is being used initially in a pilot program for conventional irrigation scheduling. However, it is designed explicitly to assist irrigation managers with planning and implementing optimum irrigation strategies when water supplies are limited or expensive. Though originally developed for use in Oregon, discussions have been initiated to make the system available in other regions of the country. This paper provides an overview of the analytical framework and demonstrates primary features of the user interface.

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