Microclima sob diferentes malhas de sombreamento em ambiente protegido cultivado com bromélias

dc.creatorHolcman, Ester
dc.creatorSentelhas, Paulo Cesar
dc.date.accessioned2013-11-04T12:45:07Z
dc.date.accessioned2018-07-04T16:37:20Z
dc.date.available2013-11-04T12:45:07Z
dc.date.available2018-07-04T16:37:20Z
dc.date.created2013-11-04T12:45:07Z
dc.date.issued2012
dc.identifierRev. bras. eng. agríc. ambient., v.16, n.8, p.858-863, 2012
dc.identifier1415-4366
dc.identifierhttp://www.producao.usp.br/handle/BDPI/39780
dc.identifier10.1590/S1415-43662012000800007
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662012000800007&lng=en&nrm=iso&tlng=en
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_abstract&pid=S1415-43662012000800007&lng=en&nrm=iso&tlng=en
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_pdf&pid=S1415-43662012000800007&lng=en&nrm=iso&tlng=en
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1638090
dc.description.abstractThis study had as its objective the evaluation of the influence of shading screens of different colors on the different microclimate variables in a greenhouse covered with transparent low-density polyethylene (LDPE). The experiment was conducted with five treatments: thermo-reflective screen (T1); a control - without screen (T2); red screen (T3); blue screen (T4); and black screen (T5), all of them with 70% of shading. An automatic micrometeorological station was installed in each treatment, measuring air temperature (T), relative humidity (RH), incoming solar radiation (Rg), photosynthetically active radiation (PAR) and net radiation (Rn) continuously. The control (T2) and red screen (T3) treatments promoted the highest solar radiation transmissivity, respectively 56.3 and 27%. The black screen (T5) had the lowest solar radiation transmissivity (10.4%). For PAR and Rn the same tendency was observed. The highest temperature was observed under blue screen (T4) treatment, which was 1.3 °C higher than external condition. Blue screen (T4) treatment also presented the highest relative humidity difference between inside and outside conditions.
dc.languageeng
dc.publisherDepartamento de Engenharia Agrícola - UFCG
dc.relationRevista Brasileira de Engenharia Agrícola e Ambiental
dc.rightsopenAccess
dc.subjectsolar radiation
dc.subjectair temperature
dc.subjectprotected crops
dc.subjectradiação solar
dc.subjecttemperatura do ar
dc.subjectcultivo protegido
dc.titleMicroclimate under different shading screens in greenhouses cultivated with bromeliads
dc.titleMicroclima sob diferentes malhas de sombreamento em ambiente protegido cultivado com bromélias
dc.typeArtículos de revistas


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