CO2 For Plants When Growing Cannabis Increases Yields - Grow Barato

When growing cannabis it is essential to learn how to use CO2 correctly. Indeed, Co2 is essential for marijuana plants, it is what they breathe during the day. Therefore, it is important to supply Co2 so that our plants have everything they need to develop properly.

Furthermore, cannabis plants can withstand up to 600% of the Co2 that is naturally present in the atmosphere. It makes the cells of the plant multiply faster, so that by applying it during flowering, we will obtain thicker flowers than normal.

How to use CO2 in plants

Basically CO2 works by multiplying the plants’cells much faster. If you use extra CO2 during the flowering period when growing cannabis indoors, combined with the right amount of lighting (at least 12 hours of light), you’ll get buds that are much thicker than usual and the obtained yield will be bigger.

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If you do not use CO2  properly, your plants could end up with yellow edges, or long stretched out plants with hardly any buds. Learning to use it properly is very important for your cannabis plants. 

There are multiple ways to get CO2 into your grows. Some are beginners’ systems which are handy as a little extra boost and don’t require much care, and others are professional systems that measure the PPM of CO2 that it’s in the atmosphere. Professional systems are more effective and efficient than beginner ones, but they also require more work, investment and attention.

Contenido

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• Ways to supply CO2
  • How to introduce CO2
  • Using a dehumidifier
• Step by step PPM Levels
• Prevent CO2 from harming your cannabis plants

Ways to supply CO2

All CO2 generators work in a similar way. They are connected to a CO2 controller that will shut off the flow of CO2 once it reaches a certain level, and open it again when it gets too low. Of course some of them are more sophisticated and efficient than others. It is worth investing in a good quality one to guarantee good CO2 levels.

If all you have is a normal CO2 meter, you can still control CO2 levels by opening and closing a solenoid valve using a timer. (Solenoid valves are valves that open and close with an electromagnetic charge). Regardless of the kind of system you use, knowing the PPM of CO2 in your grow room is very important.

How to introduce CO2

To introduce CO2 into your grow room, start by using a silicone tube with an outlet near the bottom of each plant trunk. Alternatively, you can run a 2-meter tube around the grow area, with holes pointing towards the plants’ centers.

Since CO2 is a heavy gas that naturally settles downwards, it’s important to use fans to circulate the CO2 throughout the room. This circulation helps ensure that the CO2 reaches the plants effectively, enhancing their absorption.

Once the setup is complete, it’s crucial to use CO2 correctly. Specifically, CO2 becomes beneficial during the flowering stage, starting from the 21st day. At this point, you should adjust your air filtration system so that the extractor runs for only about 15 minutes per hour. Otherwise, if the extractor runs continuously, it would exhaust all the CO2, making your efforts useless. Additionally, use a timer to coordinate the CO2 controller and the extractor, ensuring that CO2 is dispensed only when the lights are on. Conversely, the extractor should run continuously when the lights are off.

In summary, CO2 enhances plant growth by thickening cell walls and promoting rapid cell multiplication. Therefore, it’s essential to provide proper fertilization during this process. Without adequate nutrients, plants exposed to high CO2 levels may become weak, bend easily, and produce poor yields.

Using a dehumidifier

When using CO2, plants need a slightly higher temperature than usual, around 28-32ºC so that the water in the leaves can evaporate slightly faster and the plants can absorb the nutrients straight away. Basically, we want the plants to absorb the nutrients but get rid of the water fast. You’ll need a dehumidifier to lower the ambient humidity to normal levels. Once the temp is raised and your plants begin evaporating water, humidity levels will raise a lot.

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Step by step PPM Levels

EC levels apply if you are growing the weed using an aeroponic/hydroponic system. This means that the plants are growing using a nutrient-water solution and an inert growing medium instead of an organic soil rich in nutrients. 

If you want to measure the EC levels in soil you’ll need to measure the water that comes out from the bottom of the pot once you’ve watered. If more is needed you can add it in the next watering. If it’s too high then the next watering should just be water on its own.

Day to day

• Day 21 of flowering: Begin with 800 PPM, and keep it at that even when the extractor isn’t on. When watering, raise the EC every time to raise the CO2 levels. For this first week you’ll need about 1.7 EC using normal irrigation water.
• Day 24 of flowering: Raise CO2 to 850 PPM, and the EC to 1.8.
• Day 27 of flowering: CO2 to 900 PPM and EC to 1.9
• Day 29 of flowering: From this day onwards you’ll need to increase both CO2 and EC every two days. 950 PPM- 2.0 EC.
• Day 31 of flowering: 1000 PPM and 2.1 EC.
• Day 33 of flowering: 1050 PPM and 2.2 EC
• Day 35 of flowering: 1100 PPM and 2.3 EC
• Day 37 of flowering: 1150 PPM and 2.4 EC
• Day 39 of flowering: 1200 PPM and 2.5 EC. From this day onward, increase levels every day.
• Day 40 of flowering: 1250 PPM and 2.6 EC
• Day 41 of flowering: 1300 PPM and 2.7 EC
• Day 42 of flowering: 1350 PPM and 2.8 EC
• Day 43 of flowering: 1400 PPM and 2.9 EC
• Day 44 of flowering: 1450 PPM and 3.0 EC (this is the max EC level)
• Day 45 of flowering: 1500 PPM and 3.0 EC
• Day 46 of flowering: 1550 PPM and 3.0 EC
• Day 47 of flowering: 1600 PPM and 3.0 EC
• Day 48 of flowering: 1650 PPM and 3.0 EC
• Day 49 of flowering: 1700 PPM and 3.0 EC
• Day 50 of flowering: 1750 PPM and 3.0 EC
• Day 51 of flowering: 1800 PPM and 3.0 EC – This is the max CO2 level you can have in your grow room. Continue like this for the rest of the flowering period, and make sure you wash the roots 10 days before harvesting.

Prevent CO2 from harming your cannabis plants

If you notice your plants showing signs of weakness, yellowing, or decline, it’s important to immediately stop the CO2 supply and investigate the issue. This could be due to either an excess buildup of CO2 or possibly too little CO2 combined with excessive heat. Therefore, it’s crucial to adhere to the proper guidelines for using CO2; otherwise, it can become more of a hindrance than a help. However, now that we understand how to use CO2 effectively, there should be no issues. Consequently, your harvest time may be shortened by a few days, and you’ll achieve a higher yield.

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