Chapter 9: Light, Lamps & Electricity

Marijuana Horticulture

Chapter 9: Light, Lamps & Electricity Marijuana Horticulture: The Indoor / Outdoor Medical Grower’s Bible

by Jorge Cervantes

Light, Spectrum, and Photoperiod

Marijuana needs light to grow. The light must have the proper spectrum and intensity to ensure rapid growth. Light is comprised of several bands of colors. […]

Marijuana Botany - Cannabis Maturation and Harvesting

Cannabis Maturation and Harvesting

by Robert Connell Clarke

Maturation

The maturation of Cannabis is normally annual and its timing is influenced by the age of the plant, changes in photoperiod, and other environmental conditions. When a plant reaches an adequate age for flowering (about two months) and […]

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