Generally speaking, it is not necessary, but at present, there are supplementary lights to supplement the light, but they are basically made by government subsidies and special funds, which is of little practical significance. Theoretically, it can increase production, but in practice, if lighting is used to supplement light, the input and output are out of proportion, and individuals do not recommend supplementing light.

In order to achieve high yield, improve the transparency of plastic film and keep the film clean, it is very effective to pollinate with bees.