Comparative of Characteristics of Temperature and Illumination of Two Types of Greenhouse in Southern China(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Comparative of Characteristics of Temperature and Illumination of Two Types of Greenhouse in Southern China

Author(s):: LI Wei1; 2; LI Huiling1; 2; LIU Nihong1; 2; 1.Guangdong Research Institute of Modern Agricultural Equipment，Guangzhou，Guangdong 510630;2.Guangdong Hongke Agricultural Machinery Research and Development Co.Ltd.，Guangzhou，Guangdong 510630

Keywords:: South China; open-roof greenhouse; plastic greenhouse; illumination; temperature

Abstract:: Open-roof greenhouse and plastic greenhouse in South China were taken as research object，the characteristics of temperature and illumination of open-roof greenhouse and plastic greenhouse through sensor detection for greenhouse environment were researched and analyzed.The results showed that，the temperature stability of open-roof greenhouse was better than that of plastic greenhouse，and the highest temperature of the two kinds of greenhouses was more than 35 ℃，whereas the highest outdoor temperature was 28.3 ℃，resulting in unsuitable environment for crop growth,so need to open the ventilator.Via the study of illumination in the two kinds of greenhouses，it was found that the light performance and uniformity of plastic greenhouse were better than that of the open-roof greenhouse.Especially in the cloudy condition，the light transmittance of open-roof greenhouse was only 21.9%.The study identified that the shading system had a significant effect on the greenhouse illumination.This research indicated that knowing well the variety rules of the temperature and illumination in the greenhouse could guide the production of greenhouse better，and provide the theoretical basis for the further improvement of greenhouse structure.

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Last Update: 2017-10-06