Effects of Light Conversion Film on the Growth of Leafy Vegetables in Facilities under Haze Weather

被引:5
|
作者
Li, Jingjing [1 ,2 ]
Zhangzhong, Lili [1 ,2 ]
Zhang, Xin [2 ,3 ]
Wei, Xiaoming [1 ]
Zhang, Shirui [2 ,3 ]
Wang, Lichun [1 ]
Zheng, Wengang [2 ,3 ]
机构
[1] Beijing Acad Agr & Forestry Sci, Informat Technol Res Ctr, Beijing 100097, Peoples R China
[2] Minist Agr, Key Lab Qual Testing Hardware & Software Prod Agr, Beijing 100125, Peoples R China
[3] Beijing Acad Agr & Forestry Sci, Intelligent Equipment Res Ctr, Beijing 100097, Peoples R China
来源
AGRONOMY-BASEL | 2022年 / 12卷 / 10期
关键词
light conversion films; greenhouse environment; change weather; vegetable growth; sustainable development; YIELD; TEMPERATURE; TOMATO;
D O I
10.3390/agronomy12102391
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
The light intensity is low in haze weather, and the facility is in a weak light environment for a long time. As a functional film, light conversion film (LCF) can improve the light conversion performance and is conducive to regulating the environment in the facility to promote crop growth. It can be seen from the test that the light transmittance of LCF under visible light conditions (400-780 nm) is 8.67% higher than that of ordinary film (OF), with stronger light transmittance. In the red-orange light band (600-700 nm), the LCF is 1.3% higher than that of the OF. Through the detection of irradiance, it was found that the irradiance was outdoor environment > LCF > OF in any weather. A two-year greenhouse experiment was conducted to study the effect of LCF on the whole growth process of facility agriculture (environment-soil-crop) under weak light. It is found that LCF reduces the air humidity by 0.47 similar to 2.83%; it has an obvious warming effect on the surface soil of greenhouse, and it is linearly correlated with temperature. In terms of crop growth, LCF significantly (p < 0.05) increased the photosynthetic rate at heading stage, and finally increased the yield, total soluble sugar and reduction-type Vitamin C by 8.97-39.53%, 9.22-30.14%, and 1.41-21.09%, respectively. In addition, considering the frequent haze weather in North China, the use of LCF can improve air temperature, CO2 concentration, photosynthetically active radiation (PAR), and soil temperature, and it can effectively deal with the challenge of weak light. In conclusion, LCF can improve the facility environment and improve crop yield and quality, indicating that the implementation of LCF has potential benefits in solving crop yield reduction and quality decline in haze weather. In addition, as the main component of LCF, rare earth materials are a new type of clean energy, which can effectively promote the sustainable development of the agricultural ecosystem.
引用
收藏
页数:27
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