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dc.contributor.authorMAGALHAES, P. S. G.pt_BR
dc.contributor.authorQUEIROS, L. R.pt_BR
dc.contributor.authorGADANHA, C. D.pt_BR
dc.date.accessioned2011-04-10T11:11:11Zpt_BR
dc.date.available2011-04-10T11:11:11Zpt_BR
dc.date.created2011-02-07pt_BR
dc.date.issued2010pt_BR
dc.identifier.citationIn: INTERNATIONAL CONFERENCE ON PRECISION AGRICULTURE, 10., 2010, Denver. Proceedings... Denver: Denver Tech Center, 2010.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/875972pt_BR
dc.descriptionMepiquat chloride (1.1 - dimethylpiperidinium chloride) are used to control excessive vegetative growth in cotton (Gossypium hirsutum L.) broadcast sprayed by ground or air. As proven by previous researches the variability of the cotton plants height in the field is large enough to justify the application of Mepiquat at variable rate. The major advantages of it are: (i) yield increase; (ii) economy of the applied input; (iii) reducing the potential of environmental pollution. The main objective of this project was to develop a prototype device capable to accomplish the application of Mepiquat at variable rate in real time. This project used an equipment previously developed for automatic mapping of the cotton plants height based on ultrasound transducers. An electronic control device for ground sprayers was designed and constructed based on microcontroller PIC, using open source tools as Java, Linux operational system and IDE Netbeans. The device controls the pressure and flow in the spray line and uses Varitarget® nozzles due to its characteristics of linearity of flow and pressure. The calculation of the Mepiquat dosage to be applied is based on the obtained information of the plants heights and the map of previous application. The laboratory results demonstrate the accuracy of the equipment, with low response time considering the commercial sprayers velocity (3 m.s-1 to 5 m.s-1).pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectMicrocontroladorpt_BR
dc.subjectCrescimento vegetativo em algodãopt_BR
dc.subjectSoftwarept_BR
dc.subjectSprayereng
dc.subjectVaritargeteng
dc.subjectOpen source toolseng
dc.titleMepiquat chloride application on cotton at variable rate.pt_BR
dc.typeArtigo em anais e proceedingspt_BR
dc.date.updated2020-01-27T11:11:11Zpt_BR
dc.subject.thesagroGossypium Hirsutumpt_BR
dc.subject.thesagroInibidor de Crescimentopt_BR
dc.subject.nalthesaurusMepiquatpt_BR
dc.format.extent2Não paginado.pt_BR
riaa.ainfo.id875972pt_BR
riaa.ainfo.lastupdate2020-01-27 -02:00:00pt_BR
dc.contributor.institutionP. S. GRAZIANO MAGALHAES, FEAGRI/UNICAMP; LEONARDO RIBEIRO QUEIROS, CNPTIA; C. D. GADANHA, ESALQ/USP.pt_BR
Aparece nas coleções:Artigo em anais de congresso (CNPTIA)

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