Impact of fungicides on weed growth

The study has shown that fungicides influence the growth of weeds. The competition against crops will be substantially reduced. Bioassays in a climate chamber variation in temperature as well as different lightning phases and microplot trials under semi field levels were carried out to investigate t...

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Bibliographic Details
Main Author: Nordmeyer, Henning
Format: Article
Language:deu
Published: Julius Kühn-Institut 2014-02-01
Series:Julius-Kühn-Archiv
Subjects:
Online Access:http://pub.jki.bund.de/index.php/JKA/article/view/2935/3133
Description
Summary:The study has shown that fungicides influence the growth of weeds. The competition against crops will be substantially reduced. Bioassays in a climate chamber variation in temperature as well as different lightning phases and microplot trials under semi field levels were carried out to investigate the influence of fungicides on weed growth. Selected weed species (Alopecurus myosuroides, Viola arvensis, Galium aparine, Stellaria media, Lamium purpureum) have been examined with different dose rates of fungicides (Adexar, Bravo 500, Diamant, Crupozin flüssig). Weed species showed a different sensitivity. There were leaf discoloration, contractions and growth inhibition. In some cases using common practise dose rates of fungicides more than 70% growth inhibition could be estimated 14 days after application in comparison to the untreated control. Effects were much stronger in bioassays than in semi field trials.
ISSN:1868-9892
1868-9892