Prospects of using infrared thermography for irrigation scheduling of wheat crop

Padhi, Jyotiprakash and Misra, R. K. and Payero, Jose (2010) Prospects of using infrared thermography for irrigation scheduling of wheat crop. In: Australian Irrigation Conference and Exibition 2010: One Water Many Futures, 8-10 June 2010, Sydney, Australia.

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Abstract

[Introduction]: Plant stress sensing might be considered as an ideal approach in irrigation scheduling of crop plants because the plant is a good integrator of the soil, water and climatic parameters. Most of the past studies on detection of water stress in plants have been based on infrared thermometry (Alderfasi and Nielsen, 2001). Recent development of portable thermal imagers and the associated image analysis software has overcome some of the uncertainties associated with infrared thermometers. Rigorous testing of thermal imaging against more traditional physiological techniques of measuring water status of plants under field conditions is still required (Grant et al., 2006). Earlier studies which have used infrared methods for irrigation scheduling are able to indicate stomatal closure or transpiration rate but they give no information on the amount of soil water available or that needs to be supplemented via irrigation at that time (Jones, 2004). Therefore, experiment was conducted in a wheat field to test whether thermal imaging can be used as an irrigation scheduling technique by growing wheat under various irrigation treatments and examining the effectiveness of crop water stress indices (ICWSI and IG) to estimate soil water status.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Poster)
Refereed: No
Item Status: Live Archive
Additional Information: Deposited with blanket permission of Irrigation Australia Ltd. This paper has been published as a poster paper No 39 in One Water Many Futures Conference Proceedings (Editor Kelvin Montagu), Irrigation Australia Limited & CRC for Irrigation Futures, 8-10 June 2010, Sydney, Australia.
Depositing User: Dr Rabi Misra
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited: 06 Oct 2010 02:15
Last Modified: 03 Jul 2013 00:01
Uncontrolled Keywords: infrared thermography, irrigation scheduling, wheat
Fields of Research (FOR2008): 07 Agricultural and Veterinary Sciences > 0799 Other Agricultural and Veterinary Sciences > 079901 Agricultural Hydrology (Drainage, Flooding, Irrigation, Quality, etc.)
Socio-Economic Objective (SEO2008): D Environment > 96 Environment > 9609 Land and Water Management > 960905 Farmland, Arable Cropland and Permanent Cropland Water Management
URI: http://eprints.usq.edu.au/id/eprint/8637

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