|Table of Contents|

Effects of Shading on Greenhouse Energy Balance and Pepper Growth and Quality in Summer

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2022年04
Page:
51-55
Research Field:
Publishing date:

Info

Title:
Effects of Shading on Greenhouse Energy Balance and Pepper Growth and Quality in Summer
Author(s):
ZHAO Zichen1; 2; LIANG Hao2; 3; KANG Xinna4; XU Chao2; 3; WANG Liping1; JIA Bingguo1
(1.College of Landscape and Ecological Engineering，Hebei University of Engineering，Handan，Hebei 056038；2.Research Center for Vegetables，Beijing Academy of Agriculture and Forestry Sciences，Beijing 100097；3.Key Laboratory of North China Urban Agriculture，Ministry of Agriculture and Rural Affairs，Beijing 100097；4.Shijiazhuang Academy of Agriculture and Forestry Sciences，Shijiazhuang，Hebei 050050)
Keywords:
shade net; greenhouse microclimate; Penman-Monteith model; growth and quality of pepper; transpiration
PACS:
-
DOI:
10.11937/bfyy.20213395
Abstract:
Taking pepper variety ‘Guoxi 109’ as test material，and the method of field greenhouse soil cultivation was used.The effects of shade net coverage on the greenhouse microclimate and pepper plant transpiration，as well as the influence of shade net coverage on pepper growth and fruit quality were studied,in order to provide reference for improvement and promotion of shade net to cooling.The results showed that the solar radiation intensity and the greenhouse temperature in the greenhouse of the covered with black shading net with 70% light transmission were significantly reduced.At the same time，according to the Penman-Monteith model，the transpiration rate of the pepper plants in the greenhouse of the covered with black shading net with 70% light transmission was significantly lower than that of the no shading net coverage，thereby reducing the greenhouse temperature.Compared with greenhouse without shading net，the pepper yield of the greenhouse covered with black shading net with 70% light transmission increased by 39.3%，the vitamin C content increased by 21.2%，and the soluble sugar content increased by 54.7%.The use of shading in summer greenhouses could significantly improve the yield and quality of pepper fruits.

References:

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Last Update: 2022-05-12