Plants must be grown only for photosynthesis, then closed the plant factory, how plants get energy growth? The answer is, LED lights. Plant Factory LED lights and fluorescent completely replace the natural light, targeted to provide nutrition for the light they need vegetables, temperature, humidity, light, carbon dioxide, and other nutrients required for plant growth environment is strictly controlled.
Light is the core of the plant facility. In the past, the majority of similar plant factory using a metal lamp, energy saving lamp as a light source, but due to the large power consumption, can only be used as a fill light means, can not be used as the main lighting. The LED lights are ideal alternatives: LED light-emitting single chip can adjust the ratio of nutrients to plants more focused light, and can achieve artificially adjust brightness, light quality and light rhythm; addition, it has pure light quality, high luminous efficiency, low heat and energy saving advantages.
Solar radiation can not be precisely match the needs of the plant, but artificial light can. Based on these results, plant shelves lighting plant cultivation is divided into white, red, white three regions, and the use of generic lighting technology, both dispersed uniformly high directivity LED light, but according to the growth stage of the plant irradiation different wavelengths of light technology. For example, in the early stages of vegetable seed to seedling, white and red LED will light irradiation mixed together whitish light to promote photosynthesis. Then, reddish irradiated with red light emitted by the blue LED light source to promote the growth of leaves and roots. Near the harvest period, will once again illuminated whitish light to promote photosynthesis. After using this method, when compared with using only fluorescent, not only reduces power consumption by 40%, harvest the same area also increased by 50%.
Since plants cultivated plant shelf is stacked, cultivation frame interval of 35 cm, total height from 6 layers to 15 layers ranging (depending on the actual circumstances of each case, adjustable), covering less, the growth cycle is shortened about half. Currently, the plant can be cultivated plant a total of 40 to 50 kinds of vegetables, lettuce, leafy herbs class majority. Corporation president Shimamura future governance Mao pointed out that the main reason for selecting lettuce is its vitality, the production cycle, plant height appropriate, “traditional lettuce production cycle is 70 days, while in plant factories, the production cycle is only 33 ~ 35 days. “