home    about    browse    search    latest    help 
Login | Create Account

Abundanz von Getreideaphiden im Winterweizen in Abhängigkeit von Bewirtschaftunggssystemen mit unterschiedlicher Stickstoff-Intensität

Lohaus, Katharina and Vidal, Stefan (2007) Abundanz von Getreideaphiden im Winterweizen in Abhängigkeit von Bewirtschaftunggssystemen mit unterschiedlicher Stickstoff-Intensität. [Abundance of cereal aphids in winter wheat depending on farming systems with different input of nitrogen.] Paper at: Zwischen Tradition und Globalisierung - 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Stuttgart, Deutschland, 20.-23.03.2007.

[img] PDF
22Kb

Summary

The reorganisation from conventional to organic farming practice on a farm located in Northern Germany was accompanied in a long term monitoring to survey the abun-dances of cereal aphids and their natural enemies in winter wheat. The research project focuses on the interactions of host plant and aphids in ecological crop rotation systems differing in their amount of legumes (nitrogen intensive, nitrogen extensive system). Additionally manure treated winter wheat plots established in both ecological crop rota-tion systems were investigated. For comparison the abundance of aphids in conventional farming systems with winter wheat fields nearby were also monitored. The results indi-cate that within the triannual investigation period, aphids significantly varied both in abundance and species composition with regard to the various nitrogen levels. The ear dwelling species Sitobion avenae exhibited the highest damage potential and was sub-stantially less influenced by the extensive conditions of organic farming practice in con-trast to Metopolophium dirhodum and Rhopalosiphum padi sucking on the flag leaves and on lower leaf parts, respectively.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Pflanzenbau, Getreideaphiden
Subjects: Crop husbandry > Crop health, quality, protection
Research affiliation: International Conferences > 2007: Scientific Conference on Organic Agriculture > 1 Plant and Soil > 1.5 Plant nutrition, soil fertility, fertilizers, farm yard manure
Deposited By: Lohaus, Dipl.Ing.agr. Katharina
ID Code:9703
Deposited On:14 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/

Repository Staff Only: item control page