Brown rust disease control in winter wheat: II. Exploring the optimization of fungicide sprays through a decision support system

El Jarroudi, Moussa and Kouadio, Louis and Giraud, Frederic and Delfosse, Philippe and Tychon, Bernard (2014) Brown rust disease control in winter wheat: II. Exploring the optimization of fungicide sprays through a decision support system. Environmental Science and Pollution Research, 21 (7). pp. 4809-4818. ISSN 0944-1344

Abstract

A decision support system (DSS) involving an approach for predicting wheat leaf rust (WLR) infection and progress based on night weather variables (i.e., air temperature, relative humidity, and rainfall) and a mechanistic model for leaf emergence and development simulation (i.e., PROCULTURE) was tested in order to schedule fungicide time spray for controlling leaf rust progress in wheat fields. Experiments including a single fungicide treatment based upon the DSS along with double and triple treatment were carried out over the 2007–2009 cropping seasons in four representative Luxembourgish wheat field locations. The study showed that the WLR occurrences and severities differed according to the site, cultivar, and year. We also found out that the single fungicide treatment based on the DSS allowed a good protection of the three upper leaves of susceptible cultivars in fields with predominant WLR occurrences. The harvested grain yield was not significantly different from that of the double and triple fungicide-treated plots (P<0.05). Such results could serve as basis or be coupled to cost effective and environmentally friendly crop management systems in operational context.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2014 Springer-Verlag Berlin Heidelberg. Permanent restricted access to published version due to publisher copyright policy.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - No Department
Date Deposited: 18 Oct 2014 20:59
Last Modified: 17 Mar 2015 04:22
Uncontrolled Keywords: fungicide treatment; night weather; leaf rust; decision support system
Fields of Research : 07 Agricultural and Veterinary Sciences > 0701 Agriculture, Land and Farm Management > 070106 Farm Management, Rural Management and Agribusiness
07 Agricultural and Veterinary Sciences > 0701 Agriculture, Land and Farm Management > 070105 Agricultural Systems Analysis and Modelling
07 Agricultural and Veterinary Sciences > 0703 Crop and Pasture Production > 070308 Crop and Pasture Protection (Pests, Diseases and Weeds)
Socio-Economic Objective: B Economic Development > 82 Plant Production and Plant Primary Products > 8205 Winter Grains and Oilseeds > 820507 Wheat
Identification Number or DOI: 10.1007/s11356-014-2557-9
URI: http://eprints.usq.edu.au/id/eprint/26195

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