ethylene

Many growers cut down co2 to atmospheric levels the last 2 or 3 weeks to help trichome maturation as co2 can/will inhibit ethylene production which will cease trichomes maturing. What ppm do people reduce co2 levels to and for how long before chop. Atmospheric is around 400ppm no (slightly...

I'm almost done setting up 8x10 and 12x15 rooms. So far, the rooms are sealed with spray foam insulation, dehumidifiers, and a mini split is installed. I'm trying to figure out how to provide CO2 in the best way possible. I want to use burners, but I'm reading discussions where people have...