so unless you’re using high powered lights like a 1000W grow light (or high-power LEDs) and keeping the lights incredibly close, your plants are probably able to use all the light they’re receiving. Adding CO2 to the grow room does not directly increase yields. CO2 only increases the amount of energy your plants can produce under very high intensity light levels. If plants have not maxed out on light, adding more CO2 will not increase yields.
Another important point about using CO2 – In order for CO2 supplementation to be effective, you generally have to seal off the grow area and pump in enough CO2 to dramatically impact the CO2 PPM levels in the air. CO2 is dangerous to humans at these high levels, so be careful to protect yourself! Learn more about CO2 and it’s relationship to light intensity and marijuana yields here: https://www.growweedeasy.com/co2. Learn about grow light options, so you can pick the most intense light possible for your grow space: https://www.growweedeasy.com/cannabis-grow-lights. Next you’ll learn how to manipulate your plant so that you can get more light coverage to your bud sites, using the same grow lights you already have. 2.) Manipulate plant structure (bend, net, top, etc) so all colas received strong & even light coverage. The basic idea behind plant training is that bigger, wider plants with many evenly spaced colas produce bigger yields. Manipulating your plants is a basically free way to increase your yields, without needing to change anything else about your setup.
You don’t need to buy expensive nutrients or get a new grow light for this to work for you. Manipulating the plant in a way that doesn’t involve actually cutting your plant is often referred to as “LST” in the cannabis growing world, which is short for “Low Stress Training.” The idea of LST is to manually force your plant to grow flat and wide, as opposed to tall and thin, usually using bending. Here’s an example of a plant that has been LST’ed to grow very short and wide. Notice how the plant is very short when viewed from the side, but when viewed from above the plant has a lot of leaf surface area. All those leaves are like little solar panels, getting energy from your grow light.. This flat plant shape allows the whole plant to better use your existing grow lights, since a greater percentage of the plant is closer to the light source, which means that more of the plant is getting exposed to brighter light intensity. Any LST attempts should almost always begin when the plant is very young, as this type of “table” shape is much harder to achieve once the plant has developed into a triangle shape with a tall main cola. A variation of LST is when growers use a screen or net to act as a guide with which to force plants to grow flat. This technique is known as ScrOG (short for “Screen Of Green”). ScrOg is how you achieve something like this… Notice how practically the whole plant is getting direct exposure from the lights. All that direct, intense light will be turned into energy by the plant, fueling bigger buds and overall yields. In order to use ScrOG, you will need to invest in a screen, and take time during the vegetative and beginning of the flowering stage to train your plant to grow along the screen. Another popular and easy-to-learn plant training method that increases yields is known as “Supercropping.” Basically, supercropping means to bend your plant so that individual stems lay flat and form a “knuckle” where they were bent. Supercropping can be used alongside any other plant training method or by itself. Any time you notice any colas growing taller than the others, but are unable to use bending to pull down that errant cola out and away from the center of the plant, you can use supercropping to force any plant to bend. Now when it comes to plant training, there are lots of methods that involve actually cutting your plant, or removing stems and/or leaves. As far as methods that involve actually cutting the plant, you have two main options. One is to ‘top’ the plant and one is to ‘FIM’ the plant. With both techniques, you remove some of the growth on the end of the main cola of your young cannabis plant, which causes the plant to stop focusing on one cola (like a Christmas tree) and instead to create many bud-laden colas (grow a sea of buds). This will give you an idea of how the plant growth patterns change as a result of topping or FIMing a cannabis plant at a young age. A very popular form of plant training that utilizes topping and really seems to simplify the whole process for a lot of growers is known as main-lining or manifolding. Now I will mention the next technique so this section is complete, but I highly recommend against using this technique until you already have had at least a few successful grows under your belt . I also recommend mastering the other forms of plant training first, like all the ones mentioned above before trying this technique.
Defoliation can hurt or even kill your plants if done incorrectly. I believe that defoliation has in important place in the grower’s plant training repertoire, yet I also believe that most growers would do better to master the other training methods first before ever trying defoliation. Now that you’ve been warned… (Experienced Growers Only) Controversial Defoliation Increases Marijuana Yields: https://www.growweedeasy.com/defoliation. Next , learn how using less nutrients can actually result in bigger yields. 3.) Get the Right Cannabis Nutrients (and don’t overdo it!) Your cannabis plant needs nutrients to grow, no doubt about it. How much nutrients do your plants need to grow their best?
But just getting the correct kind of nutrients and following a nutrient schedule isn’t the only step you should take. Unfortunately, for whatever reason, many growers tend to provide too high levels of nutrients to their plants. This is most common when growers mix many different nutrients and supplements together, without understanding what the plant needs to grow well. As a grower, it is important that you learn how to tell when your plants are showing signs that they’re receiving too high levels of nutrients.