Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/55473
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dc.creatorThebaldi, Michael Silveira-
dc.creatorCorrêa, Flávia Vilela-
dc.creatorPinto, Pâmela Rafanele França-
dc.creatorLima, Luiz Antonio-
dc.creatorDiotto, Adriano Valentim-
dc.creatorDeus, Fábio Ponciano de-
dc.date.accessioned2022-11-09T15:47:08Z-
dc.date.available2022-11-09T15:47:08Z-
dc.date.issued2022-07-04-
dc.identifier.citationTHEBALDI, M. S. et al. Backpressure effects on emitters flow rate in subsurface drip irrigation. Brazilian Journal of Biosystems Engineering, [S.l.], v. 16, p. 1-7, 2022. DOI: 10.18011/bioeng.2022.v16.1093.pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/55473-
dc.description.abstractSubsurface drip irrigation success depends on surpassing the backpressure obstacle, a phenomenon which occurs when the water application intensity exceeds the infiltration rate of soil, which reduces the emitter flow rate. Thus, this study aimed to determine the flow rate variation, in relation to surface flow, of four drip emitters when buried at two depths in a loam soil (Yolo Loam soil), and the backpressure generated by the soil on subsurface condition. The cavity radius developed around the emitters outlet was also obtained. The experiment was conducted in a completely randomized design, in a strip-plot scheme, with three treatments: installation depth of driplines (two levels: 0.10 and 0.20 m); dripline type (four levels: D5000, JardiLine, TalDrip and and Hydro PCND) and irrigation time (three levels: 0.5, 1.0 and 3.0 h). The results showed that the flow rate variation between the surface and subsurface application on Yolo Loam soil, with inlet pressure of 145 kPa, was greater the higher was the emitter flow rate. For pressure-compensating emitters, even under backpressure influence, this was not enough to cancel the pressure-compensating device operation, of the emitters. The emitters installation depth, as well the irrigation time, did not affect the backpressure and, consequently, the flow rate variation.pt_BR
dc.languageen_USpt_BR
dc.publisherUniversidade Estadual Paulista (Unesp), Faculdade de Ciências e Engenharia (FCE), Câmpus de Tupãpt_BR
dc.rightsAttribution 4.0 International*
dc.rightsacesso abertopt_BR
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.sourceBrazilian Journal of Biosystems Engineering (BIOENG)pt_BR
dc.subjectIrrigation engineeringpt_BR
dc.subjectIrrigation lateral lines hydraulicspt_BR
dc.subjectIrrigation managementpt_BR
dc.subjectTrickle irrigationpt_BR
dc.titleBackpressure effects on emitters flow rate in subsurface drip irrigationpt_BR
dc.typeArtigopt_BR
Appears in Collections:DEG - Artigos publicados em periódicos

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