Maximum Yield USA January 2017 | Page 98

SUPPLEMENTAL CO2 T he greatest advantage of indoor horticulture is having ultimate control over light cycles, nutrition, and atmospheric conditions. A grower should do everything in his or her power to make sure their growroom’s lighting, nutrition, temperature, and humidity are precise and consistent. After all, it is only when a plant has access to sufficient light and balanced nutrients, and is provided with the appropriate atmospheric conditions, that it will be able to achieve its full potential. Once an indoor horticulturist dials in these crucial factors, he or she can take the next step toward maximizing the garden’s productivity. This can be done by supplementing CO2 into the garden’s atmosphere. Higher levels of CO2 have been shown to significantly increase plants’ growth rates and, therefore, the garden’s yield. On average, ambient air has around 350-450 ppm of CO2 (it can be greater in urban areas with more air pollution). A grower who wishes to gain all the benefits associated with enriched CO2 levels will typically increase CO2 levels to 1,000-1,500 ppm. This enrichment can be achieved by a few different methods combined with specialized CO2 control devices. CO2 AND PHOTOSYNTHESIS Plants are unique creatures because they can directly convert light energy into usable energy for growth. This phenomenon is known as photosynthesis, which can be using the chemical equation: 6CO2 + 6H2O + light energy = C6H12O6 + 6O2. " A grower who WISHES TO GAIN ALL THE BENEFITS ASSOCIATED WITH ENRICHED CO2 LEVELS WILL TYPICALLY INCREASE CO2 LEVELS TO 1,000-1,500 PPM.� 96 Maximum Yield USA  |  January 2017