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What is the real potential of plant lighting plants?

What is the real potential of plant lighting plants?

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[Abstract]:
The outdoor air quality published by Beijing Environmental Inspection Agency is "seriously polluted". It is one hour's drive from Beijing's urban area, Mafang Town, Pinggu District, and the air is covered with haze. "It's worrying that pollutants in the air and soil will enter plants directly." In the meantime, Li Yingren, co-founder of the Federation of Agricultural and People's Things, is showing off a three-storey plant factory.
   The outdoor air quality published by Beijing Environmental Inspection Agency is "seriously polluted". It is one hour's drive from Beijing's urban area, Mafang Town, Pinggu District, and the air is covered with haze. "It's worrying that pollutants in the air and soil will enter plants directly." In the meantime, Li Yingren, co-founder of the Federation of Agricultural and People's Things, is showing off a three-storey plant factory.
  
    The factory is divided into three layers, each of which is set by computer to simulate the natural growth environment of crops. The first layer is to cultivate shady edible fungi, the second layer is to plant medicinal and edible vegetables under LED light, and the third layer is to plant common fruits, vegetables and flowers under natural light. Oxygen and carbon dioxide produced on each floor can be recycled between different floors. The second layer of vegetables absorbs carbon dioxide from the first layer of edible fungi, while the oxygen from vegetables is fully utilized by edible fungi.
 
  Plant factories are efficient agricultural systems for continuous crop production annually by controlling the ecological environment in indoor buildings. Simply put, a plant factory is an indoor shelf-type vegetable planting, which realizes multi-layer soilless cultivation of plants in the "factory" - which cuts off the contact of plants with heavy metals in the outdoor air and soil. According to Li Yingren, this three-tier three-dimensional recycling plant factory provides a solution for reducing pollutant residues in crops.
 
  According to Beijing Environmental Situation Bulletin 2015 issued by Beijing Environmental Protection Bureau in April 2016, four of the six pollutants in Beijing's air exceeded the national standard in 2015. Among them, the average annual concentration of PM2.5 (fine particulate matter) was 80.6 micrograms/cubic meters, which was 1.3 times higher than the national standard. The report of the School of Public Health of Peking University in 2013 has already pointed out that fine particulate matter is rich in heavy metals such as arsenic, lead and cadmium, which can cause various serious diseases after being absorbed by crops. If the excessive deposition of heavy metals such as mercury, cadmium and lead in the soil with density above 4.0 or 5.0 leads to excessive content, it will cause heavy metal pollution in the soil. These excessive heavy metals will be absorbed by crops in the soil and enter the human body through the food chain, which poses a serious threat to human life and safety.
 
  It is precisely because of the serious harm of air and soil pollution to human beings, as well as people's concerns about food safety, "plant factory" as a new type of agricultural cultivation has shown commercial value in China.
 
  “"Our businessmen and people do not understand the real potential of plant factories." In recent years, problems such as insufficient arable land, population explosion and food safety have made "stable food supply" become the focus of global attention, so it seems that plant factories along the "scientific and technological vegetable planting" route will have great growth prospects.
 
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