Circulation

Marijuana Horticulture

by Jorge Cervantes

Plants use all CO2 around the leaf within a few minutes. When no new CO2 rich air replaces the used Co2 depleted air, a dead air zone forms around the leaf. This stifles stomata and virtually stops growth. If it is not actively moved, the air around leaves stratifies. Warm air stays near the ceiling, and cool air settles near the floor. Air circulation breaks up these air masses, mixing them together.

Avoid these would-be problems by opening a door or window and / or installing an oscillating circulation fan. Air circulation also helps prevent harmful pest and fungus attacks. Omnipresent mold spores do not land and grow as readily when air is stirred by a fan. Insects and spider mites find it difficult to live in an environment that is constantly bombarded by air currents.