I was out of town for a few days this week. Turtle is correct with his information as well.


The increase I have noticed over many years of using CO² is about 30% more in yield but it's the cut in time I like more. A 30% increase and shortened cycle will give you 1.5 more crops over a 12-month period. You need to figure that factor in your math when you want to know how much CO² will increase your yield. Think in terms more of annual yield and the 30% for each crop add up fast at the end of the year.

There is about 300-ppm in the air to start with so by adding 1500-ppm you get apx 1800-ppm of enhanced CO². The idea is to reach and hold that level for about 4 hours then swap out the air and start all over again.
Zandor Reviewed by Zandor on . Co2 Injection During Flowering Is Co2 injection just as important during flowering as it is during veg? Rating: 5