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CO2 infusion

Discussion in 'Everything Else Orchid' started by Natureman, Nov 2, 2015.

  1. Natureman

    Natureman Active Member

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    Has anyone tried CO2 infusion with orchids? (Leave out the conundrum of CAM plants for this discussion)
    I'm thinking of going with a tank and valve system opposed to a generator. Any thoughts? On hardware, efficacy, ect.?
     
  2. Ray

    Ray Orchid Iconoclast Supporting Member

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    I tried the tank & valve thing a few years back. There was a solenoid that opened the valve on a timer, so that at specific flow meter settings, you got a specific concentration - 1500 ppm was supposed to be optimum - in the air.

    I saw no difference in three months of experimenting, but I don't think the greenhouse was particularly "air tight", either..
     
  3. leo

    leo African orchids only :-)

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    I usually reach 1000 - 2000 ppm by just being inside breathing, but it doesn't last for long, since my greenhouse isn't air tight either (or the plants consume it, but I don't think so). If I was retired and could spend more time in the greenhouse during the day, CO2 levels would be just about right.

    I have a friend who installed a gas heater in winter with the intention to elevate CO2 levels that way, but he got up to 5000-7000ppm very quickly by just trying to keep the temperature above 0°C.
     
  4. naoki

    naoki Well-Known Member

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    Since I used to do CO2 injection with planted aquarium and I have most equipments needed (except the most expensive one, CO2 controller), I was going to try. But after reading scientific papers, I got discouraged. Yes, CO2 can initially increase the growth in most plants, but after a while they acclimate to the elevated CO2 level, and the growth slows down. So in other words, if you have some weak, recently imported orchids, it may be a nice strategy to get over the import acclimation process. But in a long run, they will need to go through acclimation again once you stop injecting, too.
     
  5. naoki

    naoki Well-Known Member

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