Microclimate under different shading screens in greenhouses cultivated with bromeliads
Microclima sob diferentes malhas de sombreamento em ambiente protegido cultivado com bromélias
dc.creator | Holcman, Ester | |
dc.creator | Sentelhas, Paulo Cesar | |
dc.date.accessioned | 2013-11-04T12:45:07Z | |
dc.date.accessioned | 2018-07-04T16:37:20Z | |
dc.date.available | 2013-11-04T12:45:07Z | |
dc.date.available | 2018-07-04T16:37:20Z | |
dc.date.created | 2013-11-04T12:45:07Z | |
dc.date.issued | 2012 | |
dc.identifier | Rev. bras. eng. agríc. ambient., v.16, n.8, p.858-863, 2012 | |
dc.identifier | 1415-4366 | |
dc.identifier | http://www.producao.usp.br/handle/BDPI/39780 | |
dc.identifier | 10.1590/S1415-43662012000800007 | |
dc.identifier | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662012000800007&lng=en&nrm=iso&tlng=en | |
dc.identifier | http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1415-43662012000800007&lng=en&nrm=iso&tlng=en | |
dc.identifier | http://www.scielo.br/scielo.php?script=sci_pdf&pid=S1415-43662012000800007&lng=en&nrm=iso&tlng=en | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1638090 | |
dc.description.abstract | This 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.language | eng | |
dc.publisher | Departamento de Engenharia Agrícola - UFCG | |
dc.relation | Revista Brasileira de Engenharia Agrícola e Ambiental | |
dc.rights | openAccess | |
dc.subject | solar radiation | |
dc.subject | air temperature | |
dc.subject | protected crops | |
dc.subject | radiação solar | |
dc.subject | temperatura do ar | |
dc.subject | cultivo protegido | |
dc.title | Microclimate under different shading screens in greenhouses cultivated with bromeliads | |
dc.title | Microclima sob diferentes malhas de sombreamento em ambiente protegido cultivado com bromélias | |
dc.type | Artículos de revistas |