DIY c02 for gardening?

Question:ive heard that you can make your own c02 with baking soda and vinager? any truth to that?
does any one know
a better method?

Answers:
It is true, but probably not practical. Tanks of CO2 wold probably be better. An internet search will find quite a bit of information on CO2 supplementation. Since one of the more informative sites I found involves an activity that is illegal where I live, I won't post a link, but you can search for it yourself something like (co2 gardening ) might work