Chengdu Plant factory adopts intelligent LED light source to efficiently cultivate rice, wheat and other crops

Walking into the plant factory, we can see that there are eight layers of cultivation shelves, on which lettuce, rape, rice, wheat and other plants are using advanced nutrient solution cultivation technology for three-dimensional planting. The ventilation system and carbon dioxide supply system control the indoor temperature and gas environment, while the nutrient circulation system supplies water and minerals for plant growth and development.

According to Yang Qichang, party secretary and deputy director of the Urban Agriculture Research Institute of the Chinese Academy of Agricultural Sciences, plant factories can also adjust the light source by LED according to the needs of plants. The intelligent LED light source installed in the factory can simulate the solar spectrum and meet the lighting needs of plants, becoming the "little sun" for plant growth.

According to the report, plant factories can precisely regulate the light environment elements according to different plant growth periods, which is equivalent to customized "light formula" for plants. The LED light on the top of the rack is a substitute for sunlight, which can promote plants to flower earlier and set faster.

Yang pointed out that the magic of the plant factory is that it can fast forward the growth of crops, which helps researchers to produce more results in a limited time.

In the field environment, it takes about 120-160 days for rice seedlings to be raised, transplanted and harvested. In a "plant factory" environment, it takes only about 60 days to plant seeds, raise seedlings and harvest. The growth period of rice is shortened by more than half, which greatly saves the time cost of breeders. After passing the test, there was no difference between taste and quality in the field environment.



At the same time, plant factories are not limited by region and space, and can be built near experimental buildings or breeding units. The number of cultivation floors can reach more than 10, which maximizes the use of space and saves the time cost of breeding scientists.



The intelligent LED plant factory of Yang Qichang team is a kind of advanced agricultural form to realize the fine production of plants. Leafy vegetables, fruits and vegetables, medicinal plants, edible flowers and so on can be planted in the "plant factory".



Next, Yang qichang's team intends to provide good seeds for food security through breakthroughs in plant breeding and subgeneration technology, and then embed agricultural elements in park greening as part of urban greening. (Source: Chengdu Daily reporter Zhang Qingqing)