Growing Marijuana Indoors – An Overview
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Growing plants hydroponically means that you grow the plants in an inert and sterile growing medium rather than in soil. With hydroponics, you can easily control nutrient uptake and grow medium oxygen content according to the plants need. If you are planning to grow medical marijuana indoor, hydroponic would be a right choice for you.
To grow medical hydroponic marijuana indoor you need to select your grow room carefully. Usually, a good place to set up your hydroponic grow room is in the basement. Since it is naturally insulated by the foundation, temperature management would be easier for you. Constant air circulation and fresh air is very much necessary for your indoor system. For that you need to install an oscillating fan. When using fans keep the fan in constant motion and not blowing directly on the plants as this can cause wind burn and dehydration. The larger your cannabis grow room is the greater your water demands. Make sure you have adequate and convenient access to water. If you are not using clones to start your garden, you need to germinate seeds by using rockwool cubes.
The size of your cannabis grow room will determine your light set up. Metal Halide (MH) or High Pressure Sodium (HPS) are generally used. Metal halide light is close to any regular room light and cool fluorescent light is best for vegetative growth period. Small growers can use portable lights and adjust according to the needs. During the vegetative stage, keep the light on for minimum 18 hours a day. For clones and seedlings you need T-5 high-output fluorescent lighting. Grow room humidity during vegetative phase should be between 40-55 percent. You should avoid excess humidity that allows mold and other harmful organisms to flourish, which can destroy your plants. Growing medical marijuana indoor requires a large amount of oxygen. They also need large amounts of carbon dioxide (C02), especially underneath leaves. Total C02 for the grow room should be between 800-1200 parts per million during lights-on cycle. Plant foods are usually measured in an N-P-K format, i.e. nitrogen, phosphorus and potassium. If you are buying hydroponic nutrient from market, get the powder kind that mixes with water smoothly. An all purpose hydroponic nutrient solution with secondary elements like calcium, sulphur and magnesium, and trace elements such as boron, copper, molybdenum, zinc, iron, and manganese will get you through all stages of growth. Remember to change the nutrient solution in every 2 weeks to clean out the reservoir. After cleaning, you need to add tap water and nutrient solution properly to reuse it.
Marijuana plants produce a unique odor that you may occasionally smell, usually at dusk and dawn. Sometimes they can be strong enough to attract attention. To eliminate the smell, you need to install an ozone generator. If you are planning to store your weed for more than a year, you have to wrap them in an air tight container and store in dark, cool place.