Photosynthesis, Maximized
the gas are being utilized for photosynthesis. Since CO2 is only
naturally present in the air at rates of 390 ppm, fresh supplies will
need to be vented into the area or CO2 enrichment supplied.
Many growers opt to enrich the air with CO2 up to levels of
1,400 ppm as this is proven to boost photosynthesis and growth
in most plant species; however, very high levels of CO2 can
cause plant damage and should be avoided—enriching with
CO2 above 1,400 ppm for most crops does not tend to give any
increase in photosynthesis in the long term anyway. For growers
without CO2 enrichment, ensuring there is sufficient ventilation
to remove stale air and pull in fresh air to replenish CO2 levels in
the indoor ga