Towards evaluation of adaptive control systems for improved site-specific irrigation of cotton

McCarthy, Alison and Hancock, Nigel and Raine, Steven R. (2008) Towards evaluation of adaptive control systems for improved site-specific irrigation of cotton. In: Irrigation Australia 2008: Irrigation Association of Australia National Conference and Exhibition: Share the Water, Share the Benefits, 20-22 May 2008, Melbourne, Australia. (Unpublished)

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Abstract

[Abstract]: Irrigation application in cotton crops is traditionally discharged at a constant rate for an entire field. However, not all plants in a crop may require the same amount of water due to the stochastic nature of the crop response and the spatial variability of environmental factors within the field. Control strategies are required to effectively manage spatially and temporally varied irrigation applications under large mobile irrigation machines (LMIMs, e.g. centre pivots and lateral moves) in real-time. We demonstrate that a decision-making framework for the site-specific irrigation of cotton should consist of a generic control scheme that integrates multi-dimensional irrigation scheduling strategies and is robust with respect to data gaps and deficiencies. These strategies may be based on historical (mapped) soil and application data, current and recent environmental (e.g. meteorological) data and measured plant-response data. A review of potential control strategies has been conducted and the development of a framework to evaluate these strategies is reported.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: No
Item Status: Live Archive
Additional Information: Deposited with blanket permission of publisher.
Depositing User: Ms Alison McCarthy
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - No Department
Date Deposited: 01 Jul 2008 02:44
Last Modified: 02 Jul 2013 23:04
Uncontrolled Keywords: irrigation, cotton, adaptive control, variability, simulation
Fields of Research (FOR2008): 09 Engineering > 0913 Mechanical Engineering > 091302 Automation and Control Engineering
09 Engineering > 0910 Manufacturing Engineering > 091007 Manufacturing Robotics and Mechatronics (excl. Automotive Mechatronics)
07 Agricultural and Veterinary Sciences > 0799 Other Agricultural and Veterinary Sciences > 079901 Agricultural Hydrology (Drainage, Flooding, Irrigation, Quality, etc.)
URI: http://eprints.usq.edu.au/id/eprint/4249

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