CO2
Plants use a process called photosynthesis to change water, sunlight and CO2 into fundamental compounds they need to grow and feed themselves. If there is more CO2 in their environment, they absorb more of it, which results in faster and more intense growth. Plants absorb CO2 using roots and small pores on the bottom of the leaves - the so-called stomata used for gas exchange (similar to breathing). If there is more CO2 available, plants don't have to open stomata as often and as wide, which helps them lose (evaporate) less water. If they open the stomata less, it significantly lowers the probability of absorbing harmful air pollutants.
Benefits of adding CO2 into a grow room:
- the plants flower sooner
- increases the yields
- increases stem strength
- makes plants stronger overall
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