Nanjing Pukou Plant Factory Uses LED Lights to Grow Crops with High Efficiency

Shuangmiao Village, Qiaolin Street, Pukou District, Nanjing, Jiangsu Province, is one of important vegetable producing areas in the Yangtze River Delta. In its plant factory covering an area of 4488 square meters, only five people are required to complete the full cycle production work throughout the year.

In the nursery of the plant factory, tomato seedlings "live" neatly inside, and intelligent LED lights are installed on the top of each shelf. The light they emit can simulate the solar spectrum to meet the plant's demand for light, thus becomes the "little sun" for plant growth.

Plants cannot grow without water and fertilizer. The plant factory adopts hydroponics, and each vegetable "lives" in a small piece of degradable rock wool imbibed with nutrient solution. The traditional 2-month growth cycle of field planting only takes a little more than 20 days here in the plant factory. Because of high planting density, the yield of the same area in plant factory is more than 50 times higher than that of traditional field planting.

The person at the factory told the reporter that 120 tons of vegetables are produced for the surrounding areas every year. At present, China has become the largest country of facility agriculture in the world, covering an area of more than 42.7 million mu, including 81% of facility vegetables. While ensuring the supply of "food basket" for urban and rural residents, it has also become an important hand to increase farmer＇s income and realize agricultural revitalization. (Source: CCTV)