Photo taken on Dec. 17, 2020 shows the light supplementing system in operation at a dragon fruit planting base in South China's Hainan Province. The light supplementing system has been introduced to the dragon fruit planting bases to enhance photosynthesis and prolong the fruiting period of dragon fruits. (Photo/China News Service)
Photo taken on Dec. 17, 2020 shows the light supplementing system in operation at a dragon fruit planting base in South China's Hainan Province. The light supplementing system has been introduced to the dragon fruit planting bases to enhance photosynthesis and prolong the fruiting period of dragon fruits. (Photo/China News Service)
Photo taken on Dec. 17, 2020 shows the light supplementing system in operation at a dragon fruit planting base in South China's Hainan Province. The light supplementing system has been introduced to the dragon fruit planting bases to enhance photosynthesis and prolong the fruiting period of dragon fruits. (Photo/China News Service)
Photo taken on Dec. 17, 2020 shows the light supplementing system in operation at a dragon fruit planting base in South China's Hainan Province. The light supplementing system has been introduced to the dragon fruit planting bases to enhance photosynthesis and prolong the fruiting period of dragon fruits. (Photo/China News Service)