Marijuana growers are developing high-tech methods for getting high yield crops. Marijuana Hydroponics: High-Tech Water Culture is an excellent guide to growing without soil. This book had all the information needed to set up a system using nutrient solutions in controlled environments. Detailed guide to methods of growing without soil. Marijuana Hydroponics contains equipment lists, diagrams, and a step-by-step account of assembly of a system of nutrient solutions in controlled environments for a high-yield water-culture growing system. This book give information on lighting for growth and budding, mineral nutrients, nutrient flow technique, water culture, atmosphere control, temperature factors, vegetative and reproductive growth, harvesting, using rockwool as a medium, and curing of hydroponics crops.