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Optimizing crop loading of apples and pears - results 2004-2006 (foliar fertilizers, thinning)

Pfeiffer, B.; Eis, B.; Zimmer, J. and Fieger-Metag, N. (2008) Optimizing crop loading of apples and pears - results 2004-2006 (foliar fertilizers, thinning). In: Boos, Markus (Ed.) Ecofruit - 13th International Conference on Cultivation Technique and Phytopathological Problems in Organic Fruit-Growing: Proceedings to the Conference from 18thFebruary to 20th February 2008 at Weinsberg/Germany, pp. 324-329.

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Summary

Main topics of the research-project FuE 03OE088 of “Bundesprogramm Ökologischer
Landbau” (30.04.2004-31.12.2006) were the testing of foliar fertilizers in organic apples
and pears, optimizing lime sulphur for blossom thinning, looking for alternatives to lime
sulphur for blossom thinning and looking at different combinations of thinning measures.
Only the results of testing foliar fertilizers (carried out by KoGa Ahrweiler and OVB/ÖON
Jork) and combinations of thinning measures (carried out by LVWO Weinsberg) are
described in this article. Over three years only a small increase in yield was evaluated for
the fertilizers Aminosol PS and Wuxal Ascofol (site Ahrweiler, apple variety ‘Elstar’). In
Jork (apple variety ‘Holsteiner Cox’) yield could only be judged in 2005 and 2006. Wuxal
Ascofol showed some advantage in comparison to the control. At pear variety ‘Conference’
no clear tendencies could be seen, the control had the highest yield. In 2005 the fruitsetting
of ‘Conference’ was very low because of bad conditions during blossom.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:thinning, foliar fertilizers, apples, pears, organic orchards, BÖL, BOEL, FKZ 03OE088
Subjects: Crop husbandry > Crop health, quality, protection
Crop husbandry > Production systems > Fruit and berries
Research affiliation: International Conferences > 2008: Ecofruit
Related Links:http://www.ecofruit.net, http://www.bundesprogramm-oekolandbau.de/, http://www.bundesprogramm.de/fkz=03OE088, http://orgprints.org/perl/search/advanced?addtitle%2Ftitle=&keywords=03OE088&projects=BOEL&_order=bypublication&_action_search=Suchen
Deposited By: Tagung, Ecofruit
ID Code:13741
Deposited On:24 Jul 2008
Last Modified:30 Aug 2010 08:48
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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