How much CO2/W of light do plants need?

Discussion in 'Advanced Marijuana Cultivation' started by AgentX, Sep 22, 2008.

  1.  
    AgentX

    AgentX Active Member

    Does anyone have any thoughts on using a sealed and cooled space that doesn't vent externally? CO2 would be artificially supplied, but how much? Does anyone know a plant's rate of respiration?
  2.  
    brookstown

    brookstown Active Member

  3.  
    bluballs

    bluballs Active Member

    1800 is what i hear
  4.  
    guudbud

    guudbud Well-Known Member

    don't forget to factor in 300ppm co2 in the air already... Co2 injection should be injected in a semi hot room 85-90 deg for the plants to soak up a good amount..
  5.  
    bluballs

    bluballs Active Member

    You know that is what i have always heard. When you watch Remo the "Urban Grower", he states 78 degrees, 40% humidity and 1800ppm Co2.

    hmmm. Hot or Not?

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