|Table of Contents|

Lighting Performance Comparison of Glasshouse and Plastic Greenhouse in Spring(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年12期
Page:
30-32
Research Field:
Publishing date:

Info

Title:
Lighting Performance Comparison of Glasshouse and Plastic Greenhouse in Spring
Author(s):
XIAO BoRAO Gui-zhen
College of Gardening and Horticulture,Yangtze University,Jingzhou,Hubei 434025
Keywords:
glasshouseplastic greenhouselight transmission ratelight distribution uniformity
PACS:
S 625.5+2
DOI:
-
Abstract:
Venlo type greenhouse and plastic greeenhouse were used in this experiment and their diurnal variation of light transmission rate were observed on the typical clear day and cloudy day in spring.The results showed that in sunny day,daily average values of light transmission rate of glasshouse and plastic greenhouse were 50.13%~57.92%,48.52%~54.11%,respectively;in cloudy,daily average values of light transmission rate of greenhouse and plastic greenhouse were 46.33%~52.58%,47.13%~51.33% respectively.Calculation of variance coefficient of photo-synthetically active radiation (PAR) of two greenhouse showed that the variance coefficient of light distribution of plastic greenhouse was lower 15 percentage point than glasshouse.It could be seen that light distribution uniformity of plastic greenhouse was better than glasshouse.

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Last Update: 2014-08-19