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OptiThin – Implementation of Precision Horticulture by Tree-Specific Mechanical Thinning

Gebbers, Robin and Pflanz, Michael and Betz, Adolf and Hille, Benjamin and Mattner, Jens and Rachow-Autrum, Thomas and Özyurtlu, Mustafa and Schischmanow, Adrian and Scheele, Martin and Schrenk, Johannes and Schrenk, Ludwig (2013) OptiThin – Implementation of Precision Horticulture by Tree-Specific Mechanical Thinning. In: 33. GIL-Jahrestagung Massendatenmanagement in der Agrar- und Ernährungswirtschaft Erhebung - Verarbeitung – Nutzung, pp. 95-98. GI-Edition. 33. GIL-Jahrestagung, 20.-21. Feb. 2013, Potsdam.

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Apples show biennial fluctuations in yields (alternate bearing). The alternate bearing cycle can be broken by reducing excessive flowers using either chemical or mechanical means. Currently, automatic thinning systems are treating the trees uniformly despite the fact that neighbouring trees can have a very different numbers of flowers resulting in different thinning requirements. In order to solve this problem the joint project OptiThin has been started. The aim of OptiThin was to develop a system that adapts thinning intensity individually to each tree by reducing the flowers efficiently and eco-friendly. In the result, OptiThin comprises a set of new technologies including: a) a stereo camera with software for real-time determination of flower density per tree; b) a shock absorbing camera platform; c) a mobile geographic information system; d) a decision support tool to calculated optimum thinning intensity based on current flower density and ancillary data (e.g. yield, soil); e) a mechanical thinning unit which is controlled in real-time. It was shown that adaptive management of excessive flowers could improve yield of marketable fruits and that environmental friendly mechanical thinning – without chemicals – is feasible.

Item URL in elib:https://elib.dlr.de/81394/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:OptiThin – Implementation of Precision Horticulture by Tree-Specific Mechanical Thinning
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Gebbers, RobinLeibniz-Institut für Agrartechnik PotsdamUNSPECIFIED
Pflanz, MichaelLeibniz-Institut für Agrartechnik PotsdamUNSPECIFIED
Betz, AdolfFruit-TecUNSPECIFIED
Hille, Benjamin3Astro- und Feinwerktechnik Adlershof GmbHUNSPECIFIED
Mattner, Jens3Astro- und Feinwerktechnik Adlershof GmbHUNSPECIFIED
Rachow-Autrum, Thomas3Astro- und Feinwerktechnik Adlershof GmbHUNSPECIFIED
Özyurtlu, Mustafamustafa.oezyurtlu(at)dlr.deUNSPECIFIED
Schischmanow, Adrianadrian.schischmanow(at)dlr.deUNSPECIFIED
Scheele, Martinmartin.scheele(at)dlr.deUNSPECIFIED
Schrenk, Johannes CiS Inc.UNSPECIFIED
Schrenk, LudwigCiS Inc.UNSPECIFIED
Journal or Publication Title:33. GIL-Jahrestagung Massendatenmanagement in der Agrar- und Ernährungswirtschaft Erhebung - Verarbeitung – Nutzung
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 95-98
Series Name:Lecture Notes in Informatics
Keywords:DARWIN, thinning system, stereo camera, flower density, fruiticulture
Event Title:33. GIL-Jahrestagung
Event Location:Potsdam
Event Type:national Conference
Event Dates:20.-21. Feb. 2013
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Optische Informationssysteme (old)
Location: Berlin-Adlershof
Institutes and Institutions:Optical Information Systems
Deposited By: Dombrowski, Ute
Deposited On:24 Jul 2013 10:27
Last Modified:24 Jul 2013 10:27

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