Shanghai's first "Gayupei" plant factory uses custom LED light formula

Without the need for soil or even sunlight, a row of green lettuce is growing on a multi-layered shelf. At the recent 2018 Shanghai International Indoor Plant Factory Symposium, the fully automatic aerosol plant growth system brought by Shanghai Aisheng Biotechnology Co., Ltd., the first “Gazipu” plant in Shanghai, attracted the attention of many participants. .

In the forest of reinforced concrete, can there be a touch of greenery to make modern people close to nature and feel the nature? “Plant factory” may be a good choice. According to researcher Zhu Weimin, director of the Horticultural Institute of the Shanghai Academy of Agricultural Sciences, the plant factory is an efficient agricultural system that achieves the continuous production of crops through high-precision environmental control in the facility, using computers for temperature, humidity, light, carbon dioxide concentration and nutrition of plant growth. The environmental conditions such as liquid are automatically controlled, so that the plants in the facility are not affected by or are rarely restricted by natural conditions.

The reporter saw in Aisheng Biotechnology Co., Ltd. that the plant factory uses energy-saving LED plant growth lamps as the light source. The light intensity, light quality and photoperiod are completely different for different plants and different growth stages. “Every plant has its own 'light formula', which is the focus of our future research.” Wu Haiguang, application engineer of Aisin Technology Marketing Department. In addition to the absence of sunlight, the “babies” of plant factories do not need soil. These well-developed vegetables grow in the cultivation module and can grow by relying on the nutrient solution below the module. “These nutrients are prepared by professionals to provide various nutrients to plants in a timely and effective manner, to meet the nutritional requirements of different growth stages of plants, and to make vegetables grow fast and yield high.”

In plant factories, the growth of vegetables is almost unrestricted by natural conditions and the growth cycle is accelerated. Lettuce grown in the plant can be harvested about 28 days after transplanting, much faster than ordinary land cultivation. “The plant factory is currently in its infancy in the world. It fundamentally changes the concept of agricultural planting, is a way to innovate agricultural farming methods and agricultural modernization, and is the best solution for new agricultural production and upgrading of agricultural cultivation for manufacturing.” Wu Haiguang said, “Our current products are mainly sold to hotels and also have membership retail. In addition, we are also open to primary school students in Jiading and let them come to the 'natural science class'. Children can pick vegetables and make one. Serving salad."

It is understood that Aisin Technology's fully automatic aerosol plant growth system can isolate pollution sources and pests and diseases in the soilless clean room. It has been planted to include more oily vegetables, purslane, spinach, mint, leeks, fruit cucumbers, strawberries, etc. 70 kinds of fruits and vegetables. In terms of safety, the vegetable factory's vegetables are almost the same as organic vegetables, but there is still a gap in taste. According to Director Zhu Weimin, plants will have an emergency mechanism under adverse weather conditions such as drought, freezing, and leeches, resulting in secondary metabolites, such as Shencheng people who like to whipped cream. "We also hope that through the improvement of the spectrum, nutrient solution, irradiation time and other elements, the flavor of fruits and vegetables will be further improved." Wu Haiguang said.

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