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Effect of organic, low-input and conventional production systems on yield and diseases in winter barley

Cooper, J. M.; Schmidt, C. S.; Lueck, L.; Shotton, P. N.; Turnbull, C. and Leifert, C. (2007) Effect of organic, low-input and conventional production systems on yield and diseases in winter barley. Paper at: 3rd QLIF Congress: Improving Sustainability in Organic and Low Input Food Production Systems, University of Hohenheim, Germany, March 20-23, 2007.

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Summary

The effect of organic, low-input and conventional management practices on barley yield and disease incidence was assessed in field trials over two years. Conventional fertility management (based on mineral fertiliser applications) and conventional crop protection (based on chemosynthetic pesticides) significantly increased the yield of winter barley as compared to organic fertility and crop protection regimes. Severity of leaf blotch (Rhynchosporium secalis) was highest under organic fertility and crop protection management and was correlated inversely with yield. For mildew (Erysiphe graminis), an interaction between fertility management and crop protection was detected. Conventional crop protection reduced severity of the disease, only under conventional fertility management. Under organic fertility management, incidence of mildew was low and application of synthetic pesticides in “low input” production systems had no significant effect on disease severity.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:disease, organic, net blotch (Drechslera teres f. sp. teres), powdery mildew (Blumeria /Erysiphe graminis), leaf blotch (Rhynchosporium secalis), low-input cereal production
Subjects: Crop husbandry > Crop health, quality, protection
Crop husbandry > Production systems > Cereals, pulses and oilseeds
Research affiliation: European Union > QualityLowInputFood > Subproject 3: Crop production systems
International Conferences > 2007: 3rd QLIF Congress > 3 Crop production / soil management
Related Links:http://orgprints.org/10417/
Deposited By: Cooper, Dr. Julia M
ID Code:10357
Deposited On:09 Mar 2007
Last Modified:12 Apr 2010 07:34
Document Language:English
Status:Published
Refereed:Not peer-reviewed
Additional Publishing Information: The final version of this paper is published in:
Niggli, Urs; Leifert, Carlo; Alföldi, Thomas; Lück, Lorna and Willer, Helga, Eds. (2007) Improving Sustainability in Organic and Low Input Food Production Systems. Proceedings of the 3rd International Congress of the European Integrated Project Quality Low Input Food (QLIF). University of Hohenheim, Germany, March 20 – 23, 2007. Research Institute of Organic Agriculture FiBL, CH-Frick.http://orgprints.org/10417/
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