Plants need ventilation, but first of all, the flowing air is called wind, so indoor growing, air convection must be called ventilation. Ventilation has the following benefits:
First, bring in enough CO2. As we all know, CO2 is needed for photosynthesis of green plants, and O2 is exhaled at the same time. If ventilation is not good, local CO2 concentration will be low, which is not conducive to photosynthesis;
Second, accelerate leaf transpiration and promote root absorption. As we all know, plants rely on their roots to absorb water and nutrients. Part of the water absorbed is transformed into their own substances by plants, and the other part is transporting nutrients. Only when the transpiration of leaves forms a pressure difference can water be absorbed;
Third, adjust the local air humidity. Plant leaves will evaporate water, and local humidity will increase, which is not good for plants. If we catch up with high temperature again, yellow leaves are almost inevitable. Ventilation can take away air with high humidity and low CO2 concentration;
Fourth, it can promote the evaporation of excess water in the basin. There is free water in the basin (not absorbed by the soil, i.e. water accumulation), which is very harmful to the root respiration of the plant. If it is light, it will not grow well. If it is heavy, the root system will rot, which will cause the plant to die. Through ventilation, it can accelerate the evaporation of the surface layer of the basin soil, which can accelerate the evaporation of free water. If there is more water occasionally, it can ensure that the green plants are not damaged;
Fifthly, a well ventilated environment is formed to simulate the natural temperature difference. This is very close to the natural periodic biological rhythm formed by long-term evolution of plants in nature, so that plants can normally sleep, sprout, bloom and bear fruit.
