Maximum Yield USA 2014 February | Page 70

co2 in the garden the bottle used in conjunction with a CO2 monitor are the only two ways of maintaining constant, specific levels of carbon dioxide in the garden. Carbon dioxide is heavier than the rest of the air in the space, meaning that it will fall to the floor and levels The simplest 12-in. above the way to ground will be replenish the higher than There is also a CO2 generator available that is water-cooled, resulting in optimal CO2 levels with no heat being released into the garden environment. The generator and CO 2 levels is by venting, where a fan exhausts garden air out and replaces it with air from the outside. " 68 Maximum Yield USA  |  February 2014 levels 60-in. above the ground. For this reason, monitors should be placed at plant canopy level, so they can accurately read the CO2 levels where they matter most. Adequate airflow inside the garden will ensure CO2 is homogenized into the air as much as possible. No matter what you are growing or how you deliver it, adequate CO2 levels in the space are absolutely vital for the health of your crop. Since the carbon translates directly into plant material, CO2 levels elevated above normal levels found in the atmosphere will result in density and yields not otherwise achievable.