在保护地栽培中 ,由于受天气和棚膜透光率的影响 ,导致光照不足 ,影响作物的正常生长。可采用人工补充光照 ,弥补太阳光照的不足 ,改善设施内光照条件 ,满足作物光合作用的需求。但是 ,大面积使用人工补光(人工光源有白炽灯、荧光灯等)成本太高 ,只有在育苗期小面积采用。所以 In protected cultivation, due to the weather and greenhouse film light transmittance, resulting in insufficient light, affecting the normal crop growth. Artificial supplementary lighting can be used to make up for the lack of solar lighting to improve lighting conditions within the facility to meet crop photosynthesis needs. However, the use of large artificial light (artificial light incandescent, fluorescent, etc.) is too costly, only in small areas of nursery. and so