Minimum and maximum (or rather, optimal) level of CO2 for plant growth

MINIMUM Don’t let anyone tell you that CO2 is a pollutant! This picture is from peer reviewed article: https://nph.onlinelibrary.wiley.com/d...   Check it out for yourself. This picture is worth a 1000 words. OPTIMAL LEVEL 1500 ppm is the OPTIMAL CO2 level for commercial greenhouses. That’s what we ought to aim for, unless it is proven […]