420pressnews:Combine pruning and the SCROG technique and you can grow 1 gram of cannabis per watt
420pressnews: Combine pruning and the SCROG technique and you can grow 1 gram of cannabis per watt of light. So if you have 1 600watt HPS bulb you should be able to grow 600 grams of marijuana. Temperature, humidity and other factors also have to be right of course. -- source link