[GWE] Does CO2 Actually Increase Yields?

Published: Sun, 10/26/14

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Issue #132 - Sunday, October 26, 2014

Dear Fellow Grower,

In today's issue...

  • Learn the truth about CO2 injection!
  • Discover the two best ways to add CO2 to your grow space!
  • Check out this week's trophy pic featuring a colorful Bubblegummer cola!!

Happy Growing!

Nebula Haze & Sirius Fourside (founders of GrowWeedEasy.com)

“In order to succeed, your desire for success should be greater than your fear of failure.”

~ Bill Cosby

Cannabis Yields & CO2
​by Nebula Haze

Introduction: How to Use CO2 For Growing Cannabis
How can cannabis growers use CO2 to increase cannabis yields? CO2 can increase your yields and growth by up to 20%, but a lot of people use CO2 the wrong way so they aren't getting any of the benefits.
This cannabis grower uses CO2 injection to increase yields!
Cannabis plants use CO2 when they're making energy from light, so without CO2 there's no photosynthesis or growth. However, most of the time there's already more than enough CO2 in the air for your plants. If your plant doesn't need more CO2, it won't help to add more.

For most indoor grows, there's already more CO2 in the air than your plants can use

But things are different when your space is bright. When there's more light than a cannabis plant can naturally use, supplying more CO2 can help your plants use more of that light. Getting more energy from the same amount of light results in faster growth.
Because of how this works, CO2 only increases growth when your cannabis plants are under very bright light (like the light from a 1000W HPS). And CO2 can be expensive. So before you ever think about adding CO2, it's a good idea to have completely optimized your cannabis grow space.

CO2 works best when everything else is optimal, and for most growers, a little optimization results in bigger returns than adding CO2. Only after you've dialed in all other factors of your grow is when it's time to think about adding more CO2.

Before adding CO2, you should optimize your grow space...

That means you've already got...
These things will all make a huge difference in your yields, often more than the gains you could get from CO2.

​But after all that, adding CO2 may be the logical next step to get even more from your cannabis garden.

After years of research and study by commercial greenhouse growers, we've learned exactly what's needed to get the benefits of extra CO2.

Because of all the misinformation out there, so many cannabis growers have wasted a lot of money on ineffective CO2 methods. I want to help growers understood exactly how CO2 enrichment works. That way you can set it up the right way and enjoy the benefits!
Here are some factors to consider if CO2 will work for your cannabis garden.

For CO2 to work, you need....
  • Bright Light - Your cannabis plants need a lot of light for CO2 to be effective at speeding up growth and increasing yields. As far as light intensity, we're talking about the kind of light produced by a 1000W HID grow light. CO2 only helps plants make more energy from bright light, so it won't help if you have low light levels. 

  • Enough CO2 - You must be able to maintain 1200-1500 PPM of CO2 in the grow area or it won't help your plants.

  • Sealed Grow Space - You must be able to completely seal your grow space so CO2 can't get out.

  • Temperature - You should maintain temperatures between 85°F (30°C) and 95°F (35°C) in your grow space for CO2 to be most effective.

  • Humidity - You must keep humidity below 60-70% to prevent mold and other problems, but keeping humidity low can be difficult with a sealed room while running CO2. You may need to get a dehumidifier.
I know it may sound like a lot, but these factors are important! If you have the wrong setup, adding more CO2 isn't going to help you! Today I will share everything I wish I’d known about CO2 when I started growing, so that you don’t end up wasting money chasing dreams like I did. 

This tutorial will show you exactly how you can use CO2 for faster growth and increased marijuana yields. Let's get started!

Beware! Some people (especially companies selling poor CO2 products) will try to trick you into thinking that CO2 is some magical supplement you add to your grow room to make plants grow better. Unfortunately this is not the case! There are good ways to add CO2... and there are ineffective ways. 
Pros and Cons of Using CO2 for Growng Cannabis
Benefits of Adding Extra CO2
  • Bigger Yields, Faster Growth - If you’ve maxed out the other limiting factors (especially light), CO2 can make your plants grow up to 20% faster, produce bigger plants, and enhance your yields.

  • Higher Temperature is Okay - Maintaining 1200-1500 PPM of CO2 in the grow area allows growers to keep temperatures much higher than normal. For growers with hot bright lights, this makes it easier to keep temps at a range their plants will like.

  • Security - It can be beneficial for security since you’re not venting out smelly air (you must seal off the grow area for CO2 supplementation to be effective)
Disadvantages of Adding Extra CO2
  • Need a Lot of Light - As far as light intensity is concerned, it's recommended that plants receive 7,500-10,000 lumens of light per sq foot for CO2 enrichment to be effective. To give you an idea...
    Examples: 
    ~600W HPS in a 3'x3' space
    ~1000W HPS in a 4'x4' space

  • Must Seal the Grow Area - In order to keep CO2 near the plants, you must seal up grow area so it’s airtight, which can make it harder to manage temperature and humidity

  • Cost - It can be expensive to get started if you want to inject enough CO2 into your grow area to be effective. The best setups in the long run are a bit pricey to get started with, though they become a lot cheaper once you've got your initial supplies.
Who Runs This Newsletter?
Nebula Haze:

As an epilepsy patient, medical cannabis is important to me, and I'm dedicated to showing others how easy it is to grow their own supply of cannabis at home.

It is my mission to educate and build growing resources to help both new and advanced growers get bigger, better yields with less time and money.
Learn which seed sources are personally recommended by Nebula Haze
Sirius Fourside:

Sirius Fourside is a hobbyist grower who has gained the bulk of his experience growing in water as a medium(deep water culture, bubbleponics).

"Growing cannabis is a relaxing hobby in and of itself, but it also saves you money and keeps you from having to deal with shady characters. Cannabis is much easier to grow than people give it credit for, and growing in water doesn't increase the difficulty much, if any. But whether you want to grow in water, perlite, or a different medium, we'll show you how easy it can be!"
Use Only the Best CO2 Sources!
Learn about the two best ways to add CO2
Trophy Pictures of the Week!
"Love the GWE articles I receive.  I'm a grower of 8yrs knowledge and I'm always learning new techniques and methods thanks to GWE. The photo article has helped me taking these new photos just using natural light to bring out the pink colours on the trichomes. Here is some Bubblegummer in her final days of flush."
 
~Sonofasapper
Look Who's Talking!

This is all because of you... http://imgur.com/a/k6lHS#0.  Thanks for all your work. 

~HAF

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