efeito do ambiente protegido cultivado com melão sobre os elementos meteorológicos e sua relação com as condições externas effect of greenhouse cultivated with melon crop under meteorological elements and its relationship with external conditions

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ID: 224127
2005
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Abstract
O objetivo deste trabalho foi estudar o efeito do ambiente protegido cultivado com melão (Cucumis melo L.) sobre os elementos meteorológicos e sua relação com as condições externas. O experimento foi conduzido no período de 5-10-2001 a 7-1-2002, em estufa plástica de 420 m², construída com estrutura metálica galvanizada, com dois vãos de altura central de 4,6 m e lateral de 3,0 m, composto de quatro janelas frontais, cobertas com filme de polietileno transparente de alta densidade, com aditivo ultravioleta e espessura de 150 µm. A irrigação foi efetuada por gotejamento, com lâmina total de 279,6 mm, manejada utilizando um minitanque instalado no interior do ambiente. Os elementos meteorológicos foram obtidos por sistema de aquisição automático instalado no interior do ambiente protegido e, externamente, com medidas da radiação global, temperatura e umidade relativa do ar. Verificou-se que a radiação solar global e a umidade relativa no ambiente protegido foram, em média, inferiores às condições externas, enquanto a temperatura foi superior no período analisado. A relação entre os elementos meteorológicos medidos externamente e no interior do ambiente protegido foi expressa por meio de equações de regressão linear e quadrática.
The objective of this research was to study the effect of greenhouse cultivated with melon (Cucumis melo L.) under meteorological elements and its relationship with external conditions. The study was carried out during the period of October 5, 2001 to January 7, 2002. The greenhouse had 420 m², constructed in galvanized metallic structure with two voids, height in the central part of 4.6 m and lateral of 3.0 m, having four front windows covered with a film of transparent polyethylene of high density with addictive ultraviolet and thickness of 150 µm. A drip irrigation system was used with a total water depth of 279.6 mm applied. The irrigation management was done through a small evaporation pan installed inside the greenhouse. The weather data were obtained through an automatic acquisition system placed inside and outside of the greenhouse with measurements of global solar radiation, temperature and humidity of the air. The solar radiation and relative humidity were lower in the greenhouse while the temperature was higher. The relationship between weather parameters inside and outside of the greenhouse, was expressed by linear and quadratic regression equations.
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vsquez2005engenhariaefeito Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Manuel A. N. Vásquez;Marcos V. Folegatti;Nildo da S. Dias;Cláudio R. da Silva
Journal bioorganic and medicinal chemistry letters
Year 2005
DOI
10.1590/S0100-69162005000100015
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162005000100015
Keywords
Agriculture (General) irrigation radiation evapotranspiration irrigação

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