Application and Prospect Analysis of LED in Museums

Plant factories are modern agricultural sustainable production systems built with high technology. In this production system, three-dimensional cultivation technology is used for annual production, and the plant yield is tens or even hundreds of times higher than that of traditional agriculture. The quality of the produced plants reaches green or even organic quality. At present, only a few developed countries such as Japan, the United States, and the Netherlands have mastered this technology, among which Japanese technology companies have built a large number of plant factories.
  
The development time of plant factories in our country is still relatively short, and they are still in the stage of scientific research, experimentation, and demonstration. But as an emerging agricultural production model, plant factories have begun to be used in the cultivation of flowers, vegetables and other varieties and are increasingly accepted by more and more people. In the future, with the changes in China's agricultural industry environment, the increase in urban population, and the further reduction of the application cost of plant factories, plant factories are expected to usher in a golden period of development.
  
From "The Martian" to Plant Factory
  
In the movie "The Martian", there is a scene where astronaut Mark, a botanist, is left alone on Mars. In order to overcome the threat to his survival, he begins to manually build a potato production factory without suitable soil and air, and irrigates potatoes with his own excrement and artificial water to grow. Astronaut Mark, who ultimately stayed alone on Mars, grew potatoes in the Martian desert and survived for 500 days by growing and eating potatoes.
  
After watching 'The Martian', many people began to imagine how to rely on scientific wisdom to feed themselves in barren deserts. Astronaut Mark laid Martian soil indoors at the Mars base and produced precious potatoes. In real life, some people have also built plant factories in Chinese cities where high-rise buildings stand tall and every inch of land is precious.
  
Taiwanese Xiao Juncheng has been creating a "plant factory" in Beijing CBD since 2013. This "vegetable garden" located in the underground space of a high-end office building on the East Third Ring Road covers an area of about 50 square meters. In the narrow space, a row of four story shelves are neatly arranged, and vegetables are cultivated through direct current cold light LED lighting and flowing nutrient solution. It can harvest 1000 kilograms of fresh vegetables per month. Due to the use of dust-free workshops for production, soil pollution, water source pollution, and air pollution have been eliminated, ensuring the quality of vegetables. More and more people are coming to seek cooperation. Due to the high demand, Xiao Juncheng has built another "plant factory" in Guogongzhuang, Fengtai, Beijing to meet the increasing demands of enterprises, office buildings, restaurants, and households.
  
In people's impression, China has vast land and can cultivate a large number of fruit and vegetable products, as if the distance between plant cultivation and technology is still relatively far. But the real situation is quite complex. Industry experts say that although China's open field agricultural production system has a large area, its production capacity and stability have always been low. The reasons include the decline in the quantity and quality of agricultural production resources, including land, water and fertilizer, and human resources.