Neo, what matters is the outdoors, not farmers pumping plants up. But the pumping indicates that for optimal growth, nutrients, water, CO2, bug free and competition free environmental conditions are necessary.
Considering the wild, plants are often subject to inadequate amounts of water. When there's plenty of CO2, plants need less water, so they do better, meaning they grow better [plants don't have happiness to measure, cash in the bank etc. Growth and reproduction is what defines plant life.
Of course, if soil nutrient shortage is the dominant issue, then putting more CO2 in the air won't help that plant. If it's too dark, a plant can't use the extra CO2 either.
In the wild, every component essential to life is sometimes in short supply. That includes CO2. That's the nature of competition for limited resources and infinitely varying circumstances.
Mqurice |
