Show simple item record

dc.contributor.authorSolanelles Batlle, Francesc
dc.contributor.authorEscolà i Agustí, Alexandre
dc.contributor.authorPlanas de Martí, Santiago
dc.contributor.authorRosell Polo, Joan Ramon
dc.contributor.authorCamp, Ferran
dc.contributor.authorGràcia, Felip
dc.date.accessioned2016-01-20T10:22:53Z
dc.date.available2016-01-20T10:22:53Z
dc.date.issued2006
dc.identifier.issn1537-5110
dc.identifier.urihttp://hdl.handle.net/10459.1/49349
dc.description.abstractA prototype of an electronic control system based on ultrasonic sensors and proportional solenoid valves for a proportional application to the canopy width of tree crops was mounted on an air-assisted sprayer. The sprayer flow rate adjustment was based on the relationship between the actual tree width measured by the ultrasonic sensors and the maximum tree width of the orchard. The prototype was tested in olive, pear and apple orchards to assess the system performance in different crop geometries. The spray deposit distribution was measured in comparison with conventional air-assisted applications. Metal tracers were used so that spray deposits for each treatment could be measured on the same samples, reducing sampling variability. Liquid savings of 70%, 28% and 39% in comparison to a conventional application were recorded in the olive, pear and apple orchard respectively, which resulted in lower spray deposits on the canopy but a higher ratio between the total spray deposit and the liquid sprayer output (i.e. better application efficiency). A reduction of the maximum tree width parameter in the control algorithm in the apple orchard reduced spray savings but increased spray deposition, with spray savings mainly in the middle level of the outside canopy, compared to conventional air-assisted applications.ca_ES
dc.description.sponsorshipThis research was supported by the Spanish National Research and Development Programme, AGF1998-0348-C03-02 Research Project.ca_ES
dc.language.isoengca_ES
dc.publisherElsevierca_ES
dc.relationMIECU/PN1996-1999/AGF1998-0348-C03-02ca_ES
dc.relation.isformatofVersió postprint del document publicat a https://doi.org/10.1016/j.biosystemseng.2006.08.004ca_ES
dc.relation.ispartofBiosystems Engineering, 2006, vol. 95, núm. 4, p. 473-481ca_ES
dc.rights(c) Elsevier, 2006ca_ES
dc.subject.otherPlaguicides -- Aplicacióca_ES
dc.subject.otherArbresca_ES
dc.subject.otherPolvorització (Agricultura)ca_ES
dc.titleAn Electronic Control System for Pesticide Application Proportional to the Canopy Width of Tree Cropsca_ES
dc.typearticleca_ES
dc.identifier.idgrec010063
dc.type.versionacceptedVersionca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_ES
dc.identifier.doihttps://doi.org/10.1016/j.biosystemseng.2006.08.004


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record