Fans and Dry Ice CO2 in a greenhouse

unless the greenhouse is closed up , no open vents. i doubt it, would take alot of dry ice

a small compost pile inside ur greenhouse would release plenty of co2 and sum think it may release to much but with ur fans it would be ideal i think. composting material release's natural co2.

Could use propane flame ... or a few ...
Compost pile is a better idea, but watch out of bugs getting into it.

HTP said:

Could use propane flame ... or a few ...
Compost pile is a better idea, but watch out of bugs getting into it.

Click to expand...

yes good point HTP, for the compost pile try to avoid natural sugary stuff like fruits, just a basic manure/grass/leaf compost will do fine and most bugs dont fancy it, and no it wont stink.

Any thin I throw in my compost pile anymore brings in bugs. If not mice. Now I just throw paper and cardboard in it and I put a electric fence around it on the ground to keep mice out.

Nice, thank you everyone, but is my idea viable? would the plants benefit from the CO2 being blown over it? and how fast do the plants absorb the CO2?

They will but, you need to keep the co2 higher all the time. Not just a few minutes a day. Or even an hour a day. It needs to be up higher all the them. 1,200 - 1,500 ppm.

fruit fly larva tear up a compost pile in a good way , just throw in nanner peelings BAM ! the larva is on peelings naturally theyre on there when u getem from the store .sry got off topic ,

ok...
does any one know how fast the plants absorb the CO2? Is it immediate like our lungs when we smoke? or does it take a while to soak in?

It starts using it immediately but it needs to keep constant for it to any good.... Or at least constant for 15-20min intervals each hour... Seems like a lotta dry ice and effort for this when you can properly ventilate the greenhouse and pull fat buds. CO2 is more or less for places you can't bring in fresh air and a greenhouse its easy to bring it in.... But if your hard up about doin this then i would say put a can above each plant thats big enough to hold the dry ice and then add your warm water and let it shower your plants with all intakes off and your greenhouse as sealed as possible and maybe a few small fans under the plants to circulate the gas once its hit the floor. Be careful not to blow dirt into your buds when they flower though. Like i said sounds like a lot of effort when you can bring in fresh air.