Abstract

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Title:: Performance of Polyphenyl Composite Thermal Insulation Board Wall Solar Greenhouse

Author(s):: DI Zhengmin1; ZHANG Jianfeng1; QIE Dongxiang1; YAN Xiangru1; JIN Changlin2; (1.Agricultural Technology Extension Central Station of Hebei Province,Shijiazhuang，Hebei 050011；2.Hebei Plant Protection and Quarantine Station，Shijiazhuang，Hebei 050011)

Keywords:: polyphenyl composite thermal insulation board wall solar greenhouse; soil wall solar greenhouse; temperature variation; warming and thermal property

Abstract:: Polyphenyl composite thermal insulation board wall solar greenhouse is a kind of solar greenhouse which made the back wall by 10 cm polyphenyl composite insulation board and cotton blanket.It has the characteristics of low construction cost,high land utilization rate,fast warming during the daytime,and no need of digging,and it has been developed and used in Hebei Province in recent years.From January to February in 2017,an experiment of tomato overwintering was conducted in the polyphenyl composite thermal insulation board wall solar greenhouse,the temperature changed and the warming and thermal insulation properties were monitored and analyzed.At the same time,the soil wall solar greenhouse was served as control.The results showed that,contrast to the soil wall solar greenhouse,the polyphenyl composite thermal insulation board wall solar greenhouse had lower average temperature (0.06-1.68 ℃),higher maximum temperature (0.45-15.41 ℃),and lower minimum temperature (0.12-1.72 ℃).The daily lowest temperature in the polyphenyl composite thermal insulation board wall solar greenhouse averaged 8.88 ℃,which could meet the need of solanaceous vegetableles in winter production.The research could provide information for utilizing the polyphenyl composite thermal insulation board wall solar greenhouse in central and southern area in Hebei Province.