Multi span film greenhouse is a kind of large greenhouse, its individual area can reach several hectares, so many people will pay attention to the temperature problem in the greenhouse, and how to design the greenhouse ventilation. So today I want to share with you the design reference factors for large multi-span film greenhouse ventilation systems.

Soilless cultivation technology refers to a planting technology that does not use soil or absorb nutrients directly from the soil, but uses nutrient solution as a nutrient for crop growth, getting rid of the restrictions on the soil.