Smart Automated Furrow Irrigation of Cotton
Publication: Journal of Irrigation and Drainage Engineering
Volume 144, Issue 5
Abstract
Although furrow irrigation is one of the dominant methods used for growing cotton in Australia as well as other parts of the world because of its inherent advantages including low capital cost, energy, and ease of operation, its efficiency is low and it is still labor intensive. Various previous attempts to develop automated surface irrigation systems have not been adopted commercially despite a demonstrated potential to save labor and water. The major limitations were the complexity of the integration of hardware, software, and cost. Therefore, a commercial prototype smart automation system for the furrow irrigation of cotton utilizing commercially available hardware and software was designed, trialed, and evaluated for cotton crops in Australia. It consisted of (1) automation hardware and software for the control of flows in a farm open channel delivery system, (2) sequencing of the irrigation of fields and sets of furrows, (3) specifically designed in-field flow control infrastructure for water flows into the furrows, and (4) the sensing and simulation required for the real-time selection of optimum times to cutoff for each furrow set. Extensive field trials were conducted during two seasons in a commercial irrigated cotton field to evaluate the performance of the various individual components as well as the performance of the integrated system. These include the performance of different in-field water delivery systems, advance sensors, a telemetry system, and techniques to determine the optimum irrigation duration. The field trials showed that the integrated smart system is able to control the irrigation events with a cut-off time obtained in real time from the real-time optimization or from a simple field specific algorithm to achieve maximum application efficiency. The study demonstrated that the automation of furrow irrigation in row crops is feasible and practical with commercially available equipment and provides the potential for water, labor, and energy savings.
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Acknowledgments
We would like to thank the Cotton Research and Development Corporation (CRDC) for funding the trials and Rubicon Water, Australia, for provision of the automation infrastructure.
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Information & Authors
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Published In
Journal of Irrigation and Drainage Engineering
Volume 144 • Issue 5 • May 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: Aug 24, 2016
Accepted: Sep 12, 2017
Published online: Feb 19, 2018
Published in print: May 1, 2018
Discussion open until: Jul 19, 2018
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