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Kontrolle von Rhizoctonia solani in Kartoffeln mit einer neu entwickelten Reihenapplikationstechnik von suppressiven Komposten

Schulte-Geldermann, Elmar; Schüler, Christian; Hensel, Oliver; Heß, Jürgen; Finckh, Maria. R. and Bruns, Christian (2007) Kontrolle von Rhizoctonia solani in Kartoffeln mit einer neu entwickelten Reihenapplikationstechnik von suppressiven Komposten. [Control of Rhizoctonia solani in potatoes with a new application technique of suppressive composts.] Paper at: Zwischen Tradition und Globalisierung - 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Stuttgart, Deutschland, 20.-23.03.2007.

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Summary

The soil borne pathogen Rhizoctonia solani is of increasing importance since organic seed potatoes are compulsory in organic potato production. No convincing measure to control the disease is available for organic production. The effect of a suppressive compost mixture of organic household and yard waste to control R. solani in potatoes was tested in an organic field trial at the University Kassel in 2006. The compost was directly applied at the seed tuber area. Seed tubers (variety Nicola) naturally infested with black scurf were planted in three infection classes (no, middle and high infection).
Compost amendment had a strong impact on symptoms of R. solani on tubers. The reduction of both the infestation of harvested potatoes with black scurf and the rate of tubers with deformations and dry core was significant at final harvest. Although the rate of initial infection of the seed tubers had an impact on tuber health and quality the disease was reduced up to 50% in all infection classes. These promising results en-courage increasing the research on a development of a strip application technique of composts to control the disease.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Pflanzenschutz, Bodenfruchtbarkeit, Landtechnik, Kompost Plant protection, soil fertility, agricultural engineering, compost
Subjects: Crop husbandry > Crop health, quality, protection
Research affiliation: International Conferences > 2007: Scientific Conference on Organic Agriculture > 1 Plant and Soil > 1.4 Plant health
Deposited By: Bruns, Dr. Christian
ID Code:9617
Deposited On:10 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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