Effects of Inner Cover Materials on Cooling of Greenhouse
Wen Xiang-zhen
Abstract
Wen Xiang-zhen
Abstract
Extreme high-temperature frequently occurred in greenhouse in summer,and it is harmful to crop growth and development.In view of the need of cooling in greenhouse during summer,the four kinds of cover materials were carried out.The results showed that cover materials had the effects of sun-shading,cooling,and keeping moisture to some degree,and the cooling effect was related to transmittance.The lower the light transmission rate,the better the cooling effect.The cooling effects of four kinds of materials followed the order,aluminum foildouble dacronshade netsingle dacronwithout coverage.
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Extreme high-temperature frequently occurred in greenhouse in summer,and it is harmful to crop growth and development.In view of the need of cooling in greenhouse during summer,the four kinds of cover materials were carried out.The results showed that cover materials had the effects of sun-shading,cooling,and keeping moisture to some degree,and the cooling effect was related to transmittance.The lower the light transmission rate,the better the cooling effect.The cooling effects of four kinds of materials followed the order,aluminum foildouble dacronshade netsingle dacronwithout coverage.
Key concepts: Greenhouse, Shading, Environmental science, Cover (algebra), Transmittance, Atmospheric sciences, Moisture, Materials science