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How much does elevated CO2 increase cannabis yield
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- čas přidán 8. 01. 2023
- Running a closed system and elevated CO2 is not easy but maybe the cheapest way to increase yield in your grow area.
Are many of you doing it? What systems do you use?
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Could listen to these two for days.
Thank you both always.
Thanks for the video brother
So now I'm thinking my plans have changed again....sealed room it is, back to planning. But perfect timing! Superb information Shane thank you!
If you’re doing an outdoor grow
You can do sealed and drop carbon (as the plants get bigger they’re gunna need more carbon. This is a f’cking hassle)
Or just have airflow in the greenhouse by 6” by 6” hole this will get you a constant 400 ppm carbon
The suns linens far outperform any LED’s if you’re growing under the sun carbon isn’t really that important especially if you live next to a bush street with cars
You can seal your room very easily with plastic tape and large plastic tarps, i sealed a room like that so well that when i turned on the exhaust fan the plastic tarp on the walls started expanding into the room as if the walls were closing in on me lol.
It was a freaky but cool expiriment with great succes, just make sure you have enough air input or else it will draw air from small cracks and crevices which can suck in insects and molds from the walls or outdoors
great info thx
This was the perfect video at the perfect time. Saludos from Costa Rica.
Make sure you use the best CO2 in the world TNB Naturals CO2❤
solid gold. thank you!!
Make sure you use TNB Naturals scientifically proven to be the best CO2 in the world❤
Thank you
Interesting info thanks
Make sure you use TNB Naturals scientifically proven to be the best CO2 in the world❤
High try to keep my CO2 ppm between 700-800 in the lung room, don't like it going over 800ppm, that's what the plants get. Might try a small CO2 generator and see how that effects the levels in/outside the tent. In Toronto CO2 monitors are free to borrow from the library (along with hundreds of books on cannabis).
Make sure you use TNB Naturals scientifically proven to be the best CO2 in the world❤
very good man
Out of all the cheap methods for providing co2, I've found buying candle wax on amazon and making candles are the most price effective and also most effective method for enriching co2. But be careful obviously. Find some metal box with a metal screen if you want to be very safe
Do you mean that the process of making the candles enriches CO2?
Or is it the burning of said candles that enriches CO2?
Thanks in advance if you do answer!
Another banger,cheers Shane.🤘
Make sure you use TNB Naturals scientifically proven to be the best CO2 in the world❤
I guess it depends on your CO2 source. Around here, tank rental is $1/day, CO2 is ~$60-80 for a 20lb refill and that would last me like two months. So I'd be looking at maybe $700/year? That's more than it would cost to double my lighting.
Sounds like you are running a small grow tent. So it doesnt really apply for your situation. But for bigger home grows or commercial grows this is an significant increase.
You can also use fermentation depending on the size, might not be effective for large grow areas but you dont need as much fresh air either
Great video , thank you for sharing 💚🌱💨
Make sure you use TNB Naturals scientifically proven to be the best CO2 in the world❤
This was amazingly usefull infortmation, if we can´t manage to get some brew heast and balloons soon teelights on saucers it is until then to increase CO2.
Make sure you use TNB Naturals scientifically proven to be the best CO2 in the world❤
gets those co2 levels up
Not that I doubt the doc.
But I used co2 for about 3 years, about 9 grows.
And saw maybe a 5 percent increase, if that.
And yes I knew what I was doing.
But the weirdest thing I notice was a huge increase in trichs on some of the strains.
Thanks for the real world experience✊
Make sure you use TNB Naturals scientifically proven to be the best CO2 in the world❤
TNB totally wasted money 5 bottles I a 5×5 got to 660 only for the first two weeks then just nothing 425 rest of the grow with changing them too
@@cumblowus614 you must have used them wrong. Or you are thinking of the Mother Nature bucket which sucks or exhale bag which doesn’t work TNB works extremely well. Scientifically proven
hmmm 30% THIRTY PERCENT not 13 BUT 30%.. take my money
They've been saying this inaccurate number for years. It probably is actually about 13% at the most. Take my money lol 🤣
@@WildBill496 so you cant achieve the 30%? got you..
@@lip-filler-looks-rankthis video was specifically talking about light to CO2 ratio and a 30% increase in photosynthesis.
I think the increase in temperature is very important too but i have not expirimented with this myself.
30% increased photosynthesis might be over exaggerated or in a perfect scenario but increased photosynthesis also requires more water, heat and nutrients.
I personally think a 30% increase in yield is definitely possible, its not that crazy of an increase and it requires more of everything except for light.
I would say give it a try, simply buying a CO2 meter and some buckets, sugar and yeast should easily give you the answer and costs very little, maybe 50$ if you go cheap
So what's the motivation of those trying to lower C02 levels? If it increases all kinds of crop yield wouldn't that help solve the issue of hunger?
Make sure you use TNB Naturals scientifically proven to be the best CO2 in the world❤
Over priced, you can just add yeast and sugar and get the same results. I bought a bottle and it only lasted a week as the gram weight of powder is insufficient to last a week
Looking for best lights for for 30x8 area.
wheres the full video im big fan of bruce
Link in the description
how do I increase the co2? i dont have any fancy bucket options here sadly
AT LEAST 30%
Make sure you use TNB Naturals scientifically proven to be the best CO2 in the world❤
Do you keep ypur room at 1200ppm for the whole day? Or how long do you run 1200? Just when lights are on? What about when lights are off??
I always use homemade co2. Absolutely brilliant ✌️
How
@@jakstables6491the way i done it myself years ago wasn't really worth the hassle, he probably does it differently and i can't mind the exact recipe but it was water,sugar,yeast and a little urine in big bottles with an air line out the top going into a glass of water so you can see the co2 bubbling out, but can't control it and generally only lasts a few days before needing replaced it really is a hassle
@@jakstables6491farts in the tent
@@dondappapumpumslappa8051 lol, except farts are methane not CO2
@@sixmillionsilencedaccounts3517 more co2 than methane dude
I just put yeast in warm water and leave in the tent and i get double.
when adding c02 he said you get 30 percent more yield but does this mean more flower yield and thc or just more flower mass in the yield and the same amount of thc as before the extra yield?
Good question
Make sure you use TNB Naturals scientifically proven to be the best CO2 in the world❤
Hey Shane did you take part in Dr Bugbee's course on cultivation?
I didn't, are you thinking about it?
@@MIGROLIGHT I was going to but I invested in other stuff.
@@MIGROLIGHT it's something I definitely intend on doing
Hello Shane
If u put grow containers in a bag or larger container,
Filled with CO2 using a tubing from the CO2 system, will it kill those bugs? Search homemade
bed bug traps.
Youhave to have well over 20,000 ppm of c02 to choke out bugs and it has to be sustained for at least an hour
Where are your bugs, in the medium or on the plant?
To kill plant bugs by co2 you’ll be wasting a shit load. To kill soil (bad) bugs you’re better off just using carbonated water… or for better protection - Hydrogen peroxide. But note, HP will kill your “good” bugs too. That also applies to co2 - the amount you need will also kill the good bugs too (if you have any)
You can also use the HP as foliar spray (prevention/pest maintenance), cos it has an extra oxygen atom that expands the/any bug and eventually kills it. A good ratio to start with is 30ml HP per 500ml water. 3day application rate recommended - further if needed.
Zyklon B does a good job
Any questions about CO2 please reach out to TNB Naturals.
can co2 be used to 'close off' a room.. ie essentially remove the need to ventilate outside providing humidity is controlled? potential for energy saving?
do the co2 generators work? such as the mother nature 5l co2 generator, considering trying this in a 4x4.
or the xl ExHale CO2 Bags? -a friend tried these and suffered mould issues, but cannot vouch for his practices, environment control etc lol
do the co2 sachets work? such as the Smart STL-SMRT-CO2I CO2 Bag, or multiples of?
or even the TNB The Enhancer CO2 Dispersal Canister.
would be interesting to see some tests regarding co2 levels vs RH with various co2 sources, and how long would it take for example 'paying off' a digital controller vs the throw away options
Absolutely you can I've done something similar in a 3x3m tent using 4x 1000w lumatek in a closed loop where I had a 1200w dehumidifier in a collection tent.
Main problem was dealing with heat.
what is best way to add CO2? i have heard compost piles release it or growing mushrooms?
the best ways are with a co2 bottle and regulator or a co2 burner
Make your own CO2.
For every 1 litre of water, add 1/2 cup sugar amd 1/2 teaspoon of yeast.
Have you tested the levels this makes
Do you use a heat pad to keep the yeast active and how long do wait before changing? TIA
@@MikeParentLeap Heat pad is not needed, it will just speed up the fermentation, which you don't really want. Different yeasts/temps/sugar levels will react at different rates and produce more or less CO2 per day. Faster acting stains of yeast/higher temps will produce more CO2 but use up the sugar quicker. I would recommend a champagne yeast because they aren't too fast and they can handle a high alcohol environment, which means they will remain active longer in the bottle, will last about 3 weeks of peak fermentation.
I doubt any bag/bottle that u hang with any sort of venting gets to 1200ppm is my first thought .... I use propane with a monitoring system ... 1500ppm seems to be the sweet spot for me
I use butane. I find it cheaper. I also make 3 x 1 litre bottles of co2. 200 g of sugar. Half a teaspoon of bicarb or baking soda. 2 level teaspoons of active dried brewers yeast. I find the yeast to use in spirits like gin work the best. Finally 500ml of warm water.
Lasts far longer than the tnb brand and costs pennies.
Each bottle lasts about 3 weeks
@Tony Wharton
I noticed you mention that in a comment, i used to do the same - still do sometimes. I’ve noticed four 2 litre bottles will last about 4 weeks in a 4x4, then when they’re running low on bubbles you can top up with bicarb. I don’t add the bicarb until it’s low on bubbles just add 2cups sugar per 2L water (mix sugar in portion of warm water prior, then add to remaining 2L). Wait 5min to cool then add half tspn of yeast… wait an hour and bubbles will start, then gradually increase over the next 2 weeks.
The usual ppm readings for four 2L bottles averages around 11-1200 for two weeks then drops to 1000 and keeps decreasing for the next 2 weeks to around 600 after 4 weeks. You can add extra bicarb after the 3rd week to increase ppm back up to 1000 for another few days… But it’ll still drop rapidly by the 4th week to around 600.
This is for a 4x4. The scale remains relatively the same for either 2x2, 3x3 etc.
@Tony Wharton
I also use tanks when i feel up to refilling them (i refill mine with dry ice) I keep ppms around 1200 on timers - but recently haven’t been using any added co2 anymore, cos I’m semi indoor, so don’t feel the need. Since my lights are basically only on for about an hour before and after sun up & sun down. I’m retired so i just wake up and take them outta the tents into the sun everyday. Bad storm days don’t really worry me cos I’ll leave tents open instead.
@@freedom_born Thanks for the advice my friend. I agree that the bottle will last 4 weeks but I do a complete change at 3 weeks as it's only costing pennies.
The reason I use a smaller bottle is because I'm only in an 80x80 with a 200watt led. When doing auto's, I can have the light on 100% in the first week. The girls get to 7 to 10 cm away from the lights with no problems at all.
I can only use butane in the winter and unfortunately I can't grow outside.
@Tony Wharton
Awesome, I’ve ran a few experiments over the years. On one experiment I had a 2x2 with gas, another 2x2 with a 1gal (4L) yeast bottle, and a homemade 2x2 with no co2 added.
All same cultivar, same soils, same light wattages (150W), feeds etc… i maxed the gas tent as much as possible, got about a 30% increase in biomass but it wasn’t primo. Because the over absorption of co2 didn’t allow the cannabinoids to fill out the trich bulbs fully. Made everything too fat to fill out. The bottle tent only gave about a 10% increase in end weight but the colas and trich bulbs filled in better and the smoke was better. These were compared with the No co2 tent. For a 2x2 i don’t think it’s really worth it since you can’t push ppf enough for the plant to use co2 correctly. For 2.5 x 2.5 it’ll be a little different… cos you can push a better ppf. Especially with a 200W.
I also run a 2x4 with two 150W in it with added gas, and that usually pulls a 15% increase on avg.
I would like a better understanding of how fast the plants eat c02 in a given hour during the light cycle
I think it’s something like 400 water molecules lost per 1 carbon atom gained… something like that.
You also lose even more water when the vpd & other factors aren’t correct. Ideally “everything” Has to be on point to maximise co2, and it should match your ppf if you’re generally above 1000. Normal ambience is usually 400-600ppm and regular LEDs push avg 900ppf (coverage*) - for 900ppf, the avg ambient co2 ppm should suffice. Anything higher than 900ppf, you’ll want co2 numbers to match.
Transpiration rates won’t work effectively if it loses too much water without gaining the same ratio of carbon atoms within the hour(s) it loses water. Hence why it’ll lose water “faster” when everything’s not correct.
@@freedom_born Losing water faster isn't a bad thing. Lots of nutrients can only be moved into the plant via transpiration, so less of it will result in less of those nutrients going into the plant. So many times when people think they are getting calcium deficiencies from using LED grow lights, it's actually because of CO2 levels.
@TheCowMan
When you’re losing too much water without replenishing it with the needed ratio of co2 to compensate - then you’re losing efficiency and essentially causing the plant to slowly die.
That’s how you get deficiencies that “people” May sometimes mistake for ‘Calcium’ - but you can’t even be sure if it’s even a calcium “deficiency” or a toxicity from other factors.
@TheCowMan
*YES* - losing water faster IS a Bad Thing - if it’s not compensated or replenished with the comparative amount of carbon atoms it needs for every 400 molecules lost.
When you vpd isn’t right the amount of water molecules lost rapidly increases. The scale doesn’t stay the same @400 water molecules lost for 1 carbon atom gained !! You lose even more molecules without gaining the needed carbon atoms - therefore eventually losing even more water by the minute. Cos the carbon isn’t getting replaced fast enough
@TheCowMan
Wait what?! You said it’s not a bad thing - then you say deficiencies are because of co2 levels ??!
That’s exactly the point!! If co2 levels don’t match the water molecules being lost then it’s a *BAD THING*
cant you just put a few candles in your 2x2 tent? Make sure they burn nothing and lower the air-exhaust a little bit to slow down gas-exchange?
A bucket or large pet bottle of mash fermenting will release quite a bit of CO2 for a few weeks.
@@Shabbymannen thx for your comment ! valuable!
No, it just increases the weight. Plants grow faster, but they have the same nutrients.
I feel like the context is missing. How about personal grows? Is CO2 feasible for a 2x4 or 4x4 which is probably most people here? If so, how? The logic of CO2 being cheaper than electricity makes sense on the surface...
For that size of grow having a closed environment does not make sense, too expansive. If you want to grow more upsize your tent
massively misunderstood in the growing community . I would wager 90% of growers are under the impression that supplemental Co2 is only of benefit after a certain ppf level.
I believe you're right. They hear that when using CO2 you can get away with using higher levels of ppf. These people then get stuck on that point. I do believe CO2 is beneficial throughout the entire grow but I disagree with Bruce about the 30% yield increase. I think it's more like 10 to 15% at the most. Happy growing my friend.
@@WildBill496 I think Its a problematic variable to manage for home growers. Sufficient air exchange will maximize the use of ambient levels but maintaining elevated levels in a tent is perhaps not worth the trouble.
@@eggspanda2475 I agree
Hi I'm new to using co2. My ppfd is around 800-980 ppfd. Should I keep my co2 ppm around 1200? Will 1300 + plus ppm become useless? To much mixed infos.
@Billy Sava Bugbee said the rate of photosynthesis increases 30% at any appropriate PPFD/DLI. He said you won’t get 30% more yield because of the Harvest Index Ratio which is the ratio of biomass to yield. You end up growing more leaves and stems which effects yield. He then used an example that if you increased your biomass 50% your yield would increase 30%. So in his original 30% statement your yield increase would be in the 15% range based off the Harvest Index. So you’re right! About 15% increase in flower.
I can remember hearing this awhile back from Dr. Bugbee about the up to 30% increase, I introduced more co2. I’ve also found a way to deliver carbon to the plants available mineral uptake factors, is how my armchair scientist is trying to phrase it. I’m just learning about this other method of delivery through working with the rhizosphere. I don’t want to cite the wrong scientist but it was someone who has an in depth life long love with researching the nuances in the biology of botany, who proclaimed that carbon in the soil is just as good.
Carbon in the soil is good too. But co2 to the leaves helps it push transpiration rates even higher. Cos with added temps and higher ppf/PAR the plant will transpire too much and lose too much water without regaining the same ratio of carbon atoms relative to how much water it loses.
Plants don't absorb Carbon from the soil for photosynthesis. It happens in the leaves only with gaseous CO2 via stomata. Carbon in the soil is a food for microbes, not for a plant. If this was true you could simply water plant with sparkling water which is saturated with CO2.
@@sixmillionsilencedaccounts3517
Nectar for the Gods has something called Aphrodites Extraction which has some carbon in it. Biochar is another form of Carbon in the soil that is beneficial for the overall plant health. I do not know as much as I think I know, and I’m okay with that. After all, life is a very long journey with things to learn along the way. Peace ✌️
Do you have a CO2 Meter with wifi to suggest me ?
You don’t need one with Wi-Fi just buy any co2 measured that connects to a co2 burner
@@djnotnice4622 I use co2 exhale bags or The Enhancer natural CO2 generator bottle. I just want something to monitor the ppm of co2
aranet4
hello . +30 % photosynthesis ok , but no +30 % in weight . tchuss from france :)
How to you control your temp and humidity with a sealed tent? Say i put my dehumidifier in my tent that's more heat. If they're only talking about big commercial grows maybe they should state that before all these people watching this go out and spend money only to destroy their crop.
this is for a sealed room where you have ac and dehumidifiers and and humidifiers
And still you’ll see a lot of “master growers” insisting on the lack of effect if not enough light is given
yep it is widely misinterperated
But the government keeps telling me that C02 is bad 🤔😂🤣😂🤣
Not such a cheap input anymore ?
Dry ice is pretty cheap to come by… but you’ll need to rig & refill your own tanks, or you could always sweet talk your local bar or find a good outlet for gas. They’ll charge pennies for refills. I used to have a local pub refill my small tanks for a few bucks.
Then again, sugar and yeast is cheap asf and that can increase ppms pretty good
Propane burners. 15 bucks a room per week.