I remember reading that spraying your plants with carbonated water helped them. As they absorb more CO2. Anyone have any insight on this? I was going to start testing it but I figured I'd ask on here first.
No scientific basis.
1. The bubbles in the water will contain such a tiny amount of CO2 and evaporate so fast they will make no difference.
2. Carbonated water is actually carbonic acid. It will raise the pH and lock out nutrients.