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Untersuchung möglicher Faktoren von nesterweise auftretenden Wuchsdepressionen bei Getreide auf Ökobetrieben mit leichten Böden

Schmidt, Harald and Hallmann, Johannes (2007) Untersuchung möglicher Faktoren von nesterweise auftretenden Wuchsdepressionen bei Getreide auf Ökobetrieben mit leichten Böden. [Investigation of potential factors of spotwise appearing cereal growth depressions on organic farms with light soils.] Paper at: Zwischen Tradition und Globalisierung - 9. Wissenschaftstagung Ökologischer Landbau, u, 20.-23.03.2007.

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Summary

Evaluating the problem of spotwise appearing cereal growth depressions 23 fields of 10 organic managed farms were investigated. Potential causes were soil nutrients and other chemical and physical soil properties as well as high abundance of the plant parasitic nematodes Heterodera avenae and Pratylenchus-, Tylenchorhynchus and Trichodorus species. In two on-farm field experiments different catch crops and a black fallow treatment caused a decrease of Pratylenchus and Tylenchorhynchus species. However, the yields of the following spring wheat were low, possibly due to H. avenae infestation. Fertilization with compost and potassium had no effect but the H. avenae resistant variety Isotta produced much higher yields. The conclusion drawn was that farmers with spotwise appearing growth depressions should watch them closely for nematode infestation to take regulation measures as early as possible.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Pflanzenbau, Pflanzenernährung, Pflanzenschutz, Nematoden
Subjects: Crop husbandry > Crop health, quality, protection
Soil
Research affiliation: International Conferences > 2007: Scientific Conference on Organic Agriculture > 1 Plant and Soil > 1.4 Plant health
Deposited By: Schmidt, Dr Harald
ID Code:9594
Deposited On:07 May 2007
Last Modified:12 Apr 2010 07:34
Document Language:German - Deutsch
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:Die endgültige Version des Beitrags ist veröffentlicht in:
S. Zikeli, W. Claupein, S. Dabbert, B. Kaufmann, T. Müller und A. Valle Zárate, Hrsg. (2007)
Zwischen Tradition und Globalisierung – 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Deutschland, 20.-23. März 2007, http://orgprints.org/10742/

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