Toward a simple real-time control system for efficient management of furrow irrigation

Article

Khatri, Kanya L. and Smith, R. J.. 2007. "Toward a simple real-time control system for efficient management of furrow irrigation." Irrigation and Drainage. 56 (4), pp. 463-475. https://doi.org/10.1002/ird.319
Article Title

Toward a simple real-time control system for efficient management of furrow irrigation

ERA Journal ID4213
Article CategoryArticle
AuthorsKhatri, Kanya L. (Author) and Smith, R. J. (Author)
Journal TitleIrrigation and Drainage
Journal Citation56 (4), pp. 463-475
Number of Pages13
Year2007
PublisherJohn Wiley & Sons
Place of PublicationUnited Kingdom
ISSN0971-7412
1531-0353
1531-0361
Digital Object Identifier (DOI)https://doi.org/10.1002/ird.319
Web Address (URL)http://onlinelibrary.wiley.com/doi/10.1002/ird.319/pdf
Abstract

A simple real-time control system for furrow irrigation is proposed that: predicts the infiltration characteristic of the soil in real time using data measured during an irrigation event, simulates the irrigation, and determines the optimum time to cut-off for that irrigation. The basis of the system is a new method for estimating the soil infiltration characteristic under furrow irrigation, developed previously by the authors, that uses a model infiltration curve, and a scaling process to predict the infiltration characteristic for each furrow and each irrigation event. Using the new method, infiltration parameters were calculated for two different fields. The SIRMOD simulation model was then used to simulate irrigation performance under different model strategies. These were framed to assess the feasibility of and demonstrate the gains from the real time control strategy. The simulation results showed that the system is feasible. The scaled infiltration gave predictions of the irrigation performance comparable to the measured performance, clearly establishing the suitability of this method for use in real-time control. The results further indicated that under simple real time control the irrigation performance for the two fields could be improved greatly with reductions in the total volume of water applied to the two fields of 20% and 60% respectively, indicating the scale of benefits that can be achieved in the irrigation sector by implementing simple real-time control.

Keywordssurface irrigation; irrigation control systems; real-time control; automation; irrigation advance; irrigation efficiency; simulation
ANZSRC Field of Research 2020300207. Agricultural systems analysis and modelling
409901. Agricultural engineering
300201. Agricultural hydrology
Public Notes

Deposited in accordance with the copyright policy of the publisher. Reproduced in accordance with the publisher's copyright policy.

Byline AffiliationsCooperative Research Centre for Irrigation Futures
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Khatri, K. L., Smith, R. J. and Raine, Steven R.. 2006. "Real time control of surface irrigation: managing infiltration variations and enhancing furrow irrigation performance." Irrigation Australia 2006: Irrigation Association of Australia National Conference and Exhibition. Brisbane, Australia 09 - 11 May 2006 Brisbane.
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Gillies, Malcolm H., Smith, R. J. and Raine, Steven R.. 2006. "Is it possible to extract infiltration rates for variable inflow furrow irrigation?" Irrigation Australia 2006: Irrigation Association of Australia National Conference and Exhibition. Brisbane, Australia 09 - 11 May 2006 Hornsby, NSW, Australia.
Process studies of odour emissions from effluent ponds using machine-based odour measurement
Sohn, Jae Ho, Smith, R. J. and Yoong, Ernest. 2006. "Process studies of odour emissions from effluent ponds using machine-based odour measurement." Atmospheric Environment. 40 (7), pp. 1230-1241. https://doi.org/10.1016/j.atmosenv.2005.10.035
Evaluation of methods for determining infiltration parameters from irrigation advance data
Khatri, K. L. and Smith, R. J.. 2005. "Evaluation of methods for determining infiltration parameters from irrigation advance data." Irrigation and Drainage. 54 (4), pp. 467-482. https://doi.org/10.1002/ird.198