bilbobonger
Member
Question in regards to C02 supplementation. Sorry if this’ been discussed in previous threads, but I seem to be getting some contradicting information.
Thought I had things pretty well figured out until I came across Spurr’s thread here: https://www.icmag.com/ic/showthread.php?t=221893
He mentions on the first pg. (7th post down) that C02 supplementation leads to ethylene buildup, which in turn, reduces yield. He recommends exhausting the grow-room at the end of each day in order to prevent this buildup from occurring, as well as to prevent elevated Co2 levels during the night. But then I came across this article: http://www.hightimes.com/read/optimize-your-growing-environment
Towards the end of the article, under the ‘CO2’ header, it states that CO2 actually inhibits the production of ethylene, “a naturally occurring hormone that assists in the ripening process,” hence my confusion. So my question here is basically whether or not I need to exhaust my room.
Spurr also recommends keeping CO2 levels < 500ppm at night. Is this really necessary? FWIU, any excess C02 that the plants haven’t used up by lights out will get dumped into the room elevating C02 levels during the night; another reason why Spurr recommends exhausting at the end of each day. Could setting my C02 tank (or burner, haven’t decided which yet) to shut off well before lights out help keep things in check? IIRC, someone mentions this farther along in the thread, but it was never really confirmed. I didn’t plan on setting up an exhaust system, and would like to get around this if possible.
Sorry for the lengthy post here. I appreciate the time.
Thought I had things pretty well figured out until I came across Spurr’s thread here: https://www.icmag.com/ic/showthread.php?t=221893
He mentions on the first pg. (7th post down) that C02 supplementation leads to ethylene buildup, which in turn, reduces yield. He recommends exhausting the grow-room at the end of each day in order to prevent this buildup from occurring, as well as to prevent elevated Co2 levels during the night. But then I came across this article: http://www.hightimes.com/read/optimize-your-growing-environment
Towards the end of the article, under the ‘CO2’ header, it states that CO2 actually inhibits the production of ethylene, “a naturally occurring hormone that assists in the ripening process,” hence my confusion. So my question here is basically whether or not I need to exhaust my room.
Spurr also recommends keeping CO2 levels < 500ppm at night. Is this really necessary? FWIU, any excess C02 that the plants haven’t used up by lights out will get dumped into the room elevating C02 levels during the night; another reason why Spurr recommends exhausting at the end of each day. Could setting my C02 tank (or burner, haven’t decided which yet) to shut off well before lights out help keep things in check? IIRC, someone mentions this farther along in the thread, but it was never really confirmed. I didn’t plan on setting up an exhaust system, and would like to get around this if possible.
Sorry for the lengthy post here. I appreciate the time.
