Please use this identifier to cite or link to this item: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/557426
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dc.contributor.authorROCHA, O. C.pt_BR
dc.contributor.authorGUERRA, A. F.pt_BR
dc.date.accessioned2011-07-08T11:36:37Z-
dc.date.available2011-07-08T11:36:37Z-
dc.date.created2008-03-06pt_BR
dc.date.issued2005pt_BR
dc.identifier.citationPlanaltina, DF: Embrapa Cerrados, 2005.pt_BR
dc.identifier.urihttp://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/557426pt_BR
dc.descriptionABSTRACT: Bean crop producers from the Brazilian Cerrado region have only one technology adjusted for the irrigation management: which consist in the measurement of soil-water tension through the use of tensiometers. Although this methodology has high potential of use, it has not been widely adopted by the producers due to problems in instrumentation maintenance. Thus, the utilization of models to estimate evapotranspiration estimate has shown to be applicable to the Cerrado region. So, this paper aims to evaluate the performance of the Christiansen-Hargreaves model to estimate evapotranspiration of black bean crop in the dry season of the brazilian Cerrado region. It also aims to provide an the adjusted model to estimate evapotranspiration which permit an efficient management for the agricultural irrigated system of the Cerrado region. The the black bean evapotranspiration was measured with the use of a weighing lysimeter. The experiment was carried in the Brazilian Agricultural Research Corporation (Embrapa Cerrados), located in Planaltina, DF, Brazil. When calculated with crop coefficient determined in the research and tested with adjusted energetic term (S0=0.5), the Christiansen-Hargreaves model presented an excellent performance and may be used in irrigation management of black bean crop.pt_BR
dc.language.isoporpt_BR
dc.relation.ispartofseries(Embrapa Cerrados. Comunicado Técnico, 123).pt_BR
dc.rightsopenAccesspt_BR
dc.titleModelo Christiansen-Hargreaves ajustado para a estimativa da necessidade hídrica do feijão no Cerrado.pt_BR
dc.typeFolhetospt_BR
dc.date.updated2011-07-08T11:36:37Zpt_BR
dc.subject.thesagroFeijãopt_BR
dc.subject.thesagroIrrigaçãopt_BR
dc.subject.thesagroManejo de Águapt_BR
dc.subject.thesagroPhaseolus Vulgarispt_BR
dc.subject.nalthesaurusbeanspt_BR
dc.subject.nalthesaurusirrigationpt_BR
dc.subject.nalthesauruswater managementpt_BR
dc.format.extent25 p.pt_BR
riaa.ainfo.id557426pt_BR
riaa.ainfo.lastupdate2009-10-21pt_BR
Appears in Collections:Comunicado Técnico (CPAC)

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