<ctx:context-object timestamp="2009-08-20T14:29:00Z" xsi:schemaLocation="info:ofi/fmt:xml:xsd:ctx http://www.openurl.info/registry/docs/info:ofi/fmt:xml:xsd:ctx" xmlns:xsi="http://www.w3.org/2001/XML" xmlns:ctx="info:ofi/fmt:xml:xsd:ctx"><ctx:referent><ctx:identifier>info:oai:orgprints.org:6410</ctx:identifier><ctx:metadata-by-val><ctx:format>info:ofi/fmt:xml:xsd:oai_dc</ctx:format><ctx:metadata><oai_dc:dc xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/">
        <dc:title>Wirkung biologisch-dynamischer Präparate in Rebbergen</dc:title>
        <dc:subject>Weinbau</dc:subject>
        <dc:description>State of the Art:&#13;
The majority of vine bio-dynamic growers report positive experiences in terms of plant production but also wine quality. However, quantitative and scientifically proved data are not available. However there is a high interest of the wine growers for appoved data on the efficiency of the bio-dynamic preparations. As in other countries bio-dynamic viticulture is rapidly growing in Switzerland. However, there is very little scientific evidence for the efficiency of the preparations. Thus, science-based recommendations for its use or optimisation cannot be given.&#13;
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Project aims including target group:&#13;
To show the quantitative effects of bio-dynamic preparations on parameters of plant growth, disease tolerance, soil properties and finally also on vine quality. An additional goal of the project is the management improvement of the bio-dynamic growers participating in the trials. The results may show possibilities to optimize the standard and the specific bio-dynamic management measures of the growers.&#13;
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Methodology:&#13;
In 2003 the project team that includes 4 bio-dynamic growers installed an On-Farm trial on 4 different sites of bio-dynamic vine farms. At each site 4 different treatment blocks are separated: a) with preparation 500 and with prep. 501; b) with 500 alone; c) with 501 alone; d) no preparations. Several times of the year plant growth and health is assessed. Vine quality is assessed by separated microvinifcation per treatment and site. The management of the 4 vineyards is harmonized.&#13;
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Results, conclusion, state of the art:&#13;
First results do not show differences in disease incidence. There was a tendency found for more chlorophyll in leaves where prep. 501 is applied. At two sites there was a tendency for improvement of the quality of soil aggregates where 500 is applied.</dc:description>
        <dc:type>Projektbeschreibung mit Link zur Projekthomepage</dc:type>
        <dc:type>NonPeerReviewed</dc:type>
        <dc:identifier>{Projekt} Bio-dynamic preparations in vine production: Wirkung biologisch-dynamischer PrÃ¤parate in Rebbergen. [Effect of bio-dynamic preparations in vine production.] Laufzeit: 2003 - 2008. Projekt Projektleiter/in: Levite, Dominique und Weibel, Franco, Research Institute of Organic Agriculture (FiBL), CH-5070 Frick. Weitere Informationen online unter: &lt;http://www.fibl.org/de/schweiz/forschung/anbautechnik-pflanzenbau.html &lt;http://www.fibl.org/de/schweiz/forschung/anbautechnik-pflanzenbau.html&gt;&gt;.</dc:identifier>
        <dc:relation>http://orgprints.org/6410/</dc:relation></oai_dc:dc></ctx:metadata></ctx:metadata-by-val></ctx:referent></ctx:context-object>