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The World's First Underground Fully Automatic Plant Plant
- Dec 12, 2018 -

A plant factory in Qianye County, near Tokyo, differs in that the box from the breeding of the seedlings is sent from the conveyor belt to the plant factory set up in the underground space, to the end of the long and good vegetables being sent to the ground by the conveyor belt, to achieve fully automated "growing vegetables". Plant factories that use artificial light and nutrient fluids to grow leafy vegetables are no longer new, and many Japanese companies will use used factories to "grow vegetables". 

A plant factory in Qianye County, near Tokyo, differs in that the box from the breeding of the seedlings is sent from the conveyor belt to the plant factory set up in the underground space, to the end of the long and good vegetables being sent to the ground by the conveyor belt, to achieve fully automated "growing vegetables". This is the world's first underground fully automatic plant plant, set in an idle underground municipal integrated pipeline. The top of the underground tunnel, about 3.1 km long, is about 5 metres above the ground, with an internal width of 6 m to 8 m and a height of about 4 metres, which was first completed in 1995 and was originally planned for use in the local municipal integrated pipe network and was then idle. 

Ito Electric, which develops automation equipment, worked with the Qianye County Enterprise land administration to take advantage of the idle underground tunnel and built the unique plant plant in December 2017. Since December 2017, plant plants have been tested and cultivated to produce 200 vegetables a day, including leafy vegetables such as lettuce and edible flowers, according to Okada, the head of plant plant development at Ito Electric Company. By 2020, the plant is scheduled to enter the production capacity of 2500 per day, and the daily output will be further expanded to 5000 strains by 2022. 

At that time, the area of underground plant plant will reach about 3200 square meters, the area of the ground operation area will reach about 600 square meters. 

It is reported that part of the tunnel area has been opened up as a fully enclosed plant planting area, the area of about 120 square meters, across the plastic wall can be seen inside the layered cultivation of lettuce and other vegetables. 

According to Okada Ming, the plant factory has been fully automated, after the cultivation of good vegetable seedlings on the ground, the modular vegetable seedling box through the conveyor belt into the ground, underground plant factory LED lighting and nutrient liquid transport can be completed automatically, the seedlings in the underground plant factory after 24 days of cultivation can be sent to the ground for sale. Staff also served a freshly harvested lettuce on site for journalists to taste. 

Because it is grown completely in a pollution-free environment, these lettuce can be eaten directly without cleaning, and taste good. Okada Ming said that now the plant factory output of vegetable sales prices and ordinary lettuce, there is room to further reduce costs in the future. When the daily output reaches 5000 strains, only about 10 staff on the ground need to carry out seedling raising, harvesting and equipment maintenance. 

In the future, they also plan to develop more automation equipment, with the goal of reducing costs by income. Plant factories typically consume a lot of electricity to control mild light, but the plant plant is set up in underground tunnels and can save a large amount of air conditioning electricity, according to Qianye County, deputy director of the Enterprise Land Administration. In addition, due to the proximity of the consumer market, the output of vegetables do not need long-distance transportation, saving a lot of logistics costs.