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Biologische Behangsregulierung im Kernobstbau

{Project} Crop load organic apple: Biologische Behangsregulierung im Kernobstbau. [Crop load regulation in organic apple growing.] Runs 1996 - 2007. Project Leader(s): Weibel, Franco, Research Institute of Organic Agriculture (FiBL), CH-5070 Frick .

Full text not available from this repository.

Document available online at: https://www.fibl.org/de/standorte/schweiz/departemente/nutzpflanzenwissenschaften/anbautechnik-obstbau-weinbau.html


State of the Art:
A partly well working method to thin surplus flowers in spring is the rope machine. However with older trees it doesn’t work sufficiently in the inner parts of the tree. Also the device must be used very softly in order to prevent physical and physiological damages to the trees.
Definition of the problem:
In several countries organic apple growers can use lime sulphur for flower thinning to regulate the crop load on the apple trees. In Switzerland, however, no spray product is allowed for early crop load regulation to control bi-annual bearing in organic apple growing. This is a key problem for organic apple growers in terms of high labour costs for manual thinning and in terms of high difficulties to achieve good quality fruit every year.
Target group:
Organic apple growers
On-Farm trials. Partly, e.g. to check phytotoxic effects in advance, also greenhouse experiments.
We are testing different molasse and oil products using not-thinned, rope-thinned and lime-sulphur-thinned treatments as reference standards.
Results, conclusion, state of the art:
We found good thinning potentials with molasses (vinasse) products and emulgated oils. However, still a lot of optimizations need to be investigated.

Summary translation

Involved organisations, project partners:
Hauert Dünger AG

EPrint Type:Project description
Keywords:Apple, organic, crop load regulation, thinning, flower, bi-annual bearing, molasses, vinasse, oil, rope machine, Bioobstbau, Behangsregulierung
Subjects: Crop husbandry > Production systems > Fruit and berries
Research affiliation: Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Crops > Special crops > Fruit
Research funders: Switzerland > Swiss Federal Office for Agriculture FOAG
Switzerland > Other organizations
Related Links:https://www.fibl.org/en/locations/switzerland/departments/crop-sciences/cultivation-technique-fruit-wine.html, https://orgprints.org/perl/search/advanced?keywords=Bioobstbau%2C+Behangsregulierung&projects=perennial-crop-production &projects&_satisfyall=ALL&_order=byname&_action_search=Search
Acronym:Crop load organic apple
Project ID:MK 2.8
Start Date:1 January 1996
End Date:31 December 2007
Deposited By: Weibel, Franco
ID Code:6373
Deposited On:09 Dec 2005
Last Modified:11 Nov 2020 13:43

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