How to improve the lighting rate of planting in greenhouse construction
1. How does the special film for Sichuan vegetable greenhouse construction maintain the lighting rate?
Surrounding environment: When the special film for greenhouses is being constructed, we should choose it on the open ground, so as to ensure a long time of sunlight exposure. Once there are trees around, the lighting rate of the special film for greenhouses will be reduced. In addition, although there is no shade from trees, we have to choose a place without houses, because the existence of houses will also block sunlight and shorten the light transmission time of the greenhouse film.
2. The structure itself: The structure generally refers to the greenhouse membrane framework. The width of the greenhouse membrane framework is too wide and the interweaving is dense, which will definitely affect the lighting rate. The sun is blocked by the skeleton. In addition, for some plants growing on the pergola, such as grapes, pumpkins, etc., the bamboo pergola will also block part of the sunlight. It also has a great influence on the lighting rate.
3. Aging degree: Especially in summer, direct sunlight on the greenhouse film will accelerate the aging of the greenhouse film. The surface of the aged greenhouse film will turn white and reduce the light transmittance. To sum up, the light transmittance is very beneficial to the growth of greenhouse film plants. To effectively enhance and maintain the light transmittance in the greenhouse film, it is necessary to know the reason for the weakened light transmittance, and to treat the disease to achieve better results.
