2012
DOI: 10.1590/s1415-43662012000300007
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Evapotranspiração do pimentão em estufa plástica estimada com dados meteorológicos externos, na primavera

Abstract: R ESU M ONeste trabalho o objetivo foi gerar e testar modelos matemáticos para a estimativa da evapotranspiração máxima para a cultura do pimentão, com variáveis meteorológicas medidas no exterior de estufa, na primavera, em Santa Maria, RS. Dois experimentos foram conduzidos, um no ano de 2005 e outro em 2006, visando à geração e aos testes dos modelos, respectivamente. A evapotranspiração foi medida em três lisímetros de drenagem e um lisímetro de balança. Foram feitas medições semanais da altura de plantas,… Show more

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Cited by 7 publications
(4 citation statements)
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“…Nutrient solution was prepared and stored in 500 L polypropylene boxes; a motor pump controlled by a time scheduler was used to supply plants with the solution. Fertigation frequency was determined based on the intensity of global solar radiation and on the potential transpiration of locally grown vegetables (Tazzo et al, 2012) by taking into consideration 30% drainage coe cient. Three to ve 15-minute-long fertigations were performed on a daily basis.…”
Section: Describing the Experimentsmentioning
confidence: 99%
“…Nutrient solution was prepared and stored in 500 L polypropylene boxes; a motor pump controlled by a time scheduler was used to supply plants with the solution. Fertigation frequency was determined based on the intensity of global solar radiation and on the potential transpiration of locally grown vegetables (Tazzo et al, 2012) by taking into consideration 30% drainage coe cient. Three to ve 15-minute-long fertigations were performed on a daily basis.…”
Section: Describing the Experimentsmentioning
confidence: 99%
“…Penman (1948) replaced m by the rate of sunshine duration (m/10 = 1 -n/N), which then came to be called the Brunt-Penman equation, and which can be used for a uniform, flat surface (HELDWEIN et al, 2012). This methodology has been used in studies in Santa Maria to estimate L* ( SI LVA et al, 2011;SILVA et al, 2008;PIVETTA et al, 2011;TAZZO et al, 2012) and has produced good results at various locations (BILBAO; DE MIGUEL, 2006;CROWFORD;DUCHON, 1999;LHOMME;VACHER;ROCHETEAU, 2007;PÉREZ-GARCIA, 2004;SOBRINHO, 2011;SRIDHAR;ELLIOT, 2002).…”
Section: Introductionmentioning
confidence: 99%
“…) Tazzo et al (2012). verificaram que o índice de área foliar é a variável fenométrica mais apropriada a ser utilizada em modelos para a estimativa da evapotranspiração máxima da cultura do pimentão cultivado em estufa plástica.…”
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