The Real Scoop on Co2

Aeroknow

Well-Known Member
Been growing since to 60's and it was the first thing I learned from an old hippy back then. I was ecstatic. More buds!!!
Haha. Rite on.
I'm pretty sure my mom knew about it back than too:-). She was a hippy too. Santa Cruz mountains
Hit him up. A lot of people here rag on him. He'd like the support.
Just don't read his racist rants in the politics forum;-)
 

hotrodharley

Well-Known Member
Haha. Rite on.
I'm pretty sure my mom knew about it back than too:-). She was a hippy too. Santa Cruz mountains

Just don't read his racist rants in the politics forum;-)
That's kind of what I was alluding to. He's not real popular there for sure. I'm too old for the racist shit. Life has too many important things that are real.
 

legallyflying

Well-Known Member
Uncle Ben is a jackass who A. Doesn't know shit about modern growing and advances in nutrient science and B doesn't even grow weed anymore.

He is one trick pony and sames the same tired thing time after time. " your just a victim of marketing, you don't need any of that snake oil shit"

Uh huh. One of us owns a million dollar commercial marijuana operation and one of us is a racist vegetable farmer who once grew weed in texas.

Just saying.
 

legallyflying

Well-Known Member
Th
Running a closed system in cooler temps is all good but what do we do in the hotter summer months? A room I visit runs an in room a/c unit through warmer months which blows out a not insignificant amount of hot air from the flowering room constantly during lights on. How could you possibly avoid this and is it even feasible to run co2 in a room that also runs A/C?[/QUOTE
Running a closed system in cooler temps is all good but what do we do in the hotter summer months? A room I visit runs an in room a/c unit through warmer months which blows out a not insignificant amount of hot air from the flowering room constantly during lights on. How could you possibly avoid this and is it even feasible to run co2 in a room that also runs A/C?
It's entirely possible to run AC. Sounds like your buddy has a cheap portable AC unit.

If you don't have AC you can always use bottled co2 but it's a major pain.
 
Uncle Ben is a jackass who A. Doesn't know shit about modern growing and advances in nutrient science and B doesn't even grow weed anymore.

He is one trick pony and sames the same tired thing time after time. " your just a victim of marketing, you don't need any of that snake oil shit"

Uh huh. One of us owns a million dollar commercial marijuana operation and one of us is a racist vegetable farmer who once grew weed in texas.

Just saying.
Ha, first thing I see after being away from the grow scene for more than two years is some ignorant know it all trashing Uncle Ben. Agriculture has been alive for nearly 10,000 years and you think in the last five or ten you got it all figured out like cannabis is some magical plant that grows under different rules than all the others that farmers,like Uncle Ben have been cultivating since the first people on earth cultivated the soil. You just hate him because he has forgotten more about plants than you will ever know. Keep using your expensive snake oil bullshit, but know this. I haven't been on the forums for over two years because last grow, following his methods I grew enough in a 2'x4' tent to last me that long getting high everyday and I still have some of that bad ass weed left. You're a moron legallyflying. Pull your head out of your ass. Texas is capitalized, dumbass.
 

legallyflying

Well-Known Member
^ lmfao.

I don't think texas deserves to be capitilized.

That's some seriously funny shit though. Putting the line in about your 2x4 tent.. even better.

FYI, 35 years ago they didn't even really understand how photosynthesis worked.
 

chuck estevez

Well-Known Member
^ lmfao.

I don't think texas deserves to be capitilized.

That's some seriously funny shit though. Putting the line in about your 2x4 tent.. even better.

FYI, 35 years ago they didn't even really understand how photosynthesis worked.
they didn't understand photosynthesis in 1980?
 

ttystikk

Well-Known Member
^ lmfao.

I don't think texas deserves to be capitilized.

That's some seriously funny shit though. Putting the line in about your 2x4 tent.. even better.

FYI, 35 years ago they didn't even really understand how photosynthesis worked.
Texas needs a good old fashioned dose of French Revolution. They like to murder their prisoners so much, let's start stuffing those death chambers full of tex-ASS (enough caps for ya?!) judges and politicians. Texas is a state built on the philosophy of 'do unto others before they do you'. Everything that's wrong with the American psyche.

Great thread. Shoulda been a sticky!

In your opinion, is there a CO² supplementation level that can be run through the end of flower without losing the smell? I'm trying to come up with a middle of the road level that would aid growth without hurting terpenes. If it can't be done in your opinion, that's valuable information as well.
 

legallyflying

Well-Known Member
Hugh co2 numbers will not supreme smell, well at least in my experience. It can suppress maturation of the buds but this is based on information from the fruit industry. Co2 will supress ethelyn amd ethelyn is what makes fruit mature.

The bananas in the store? They were picked green, very green, then gased with ethelyn when the needed to be shipped to the store.

Smell and taste are the results of the terpine profile of the bud. What destroys terpines is intense light and heat. Some are destroyed at as low of temps as 75 degrees.

High co2 near the end is just a waste as the plants are not chugging like they do during veg and the first half of flower. After the flowers bulk up, things really slow down and theor metabolic rate is low enough that the can't take advantage of elevated co2 levels.

If you want to increase smell then raise the lights in the last week or two before harvest and crank the AC.

If your in hydro, also turn down water temps to pretty much as low as you can. Cutting water depths in 1/2 is also good if your in dwc.

We can't raise our lights because we are vertical but we do set the thermostat on the AC to 67, which results in leaf temperatures closest to the bulb to be around 75.

Harvest before the lights come on, we don't do the whole kill the lights until your done trimming because we harvest the tops and then harvest the lowers about a week to 10 days later.. also.a good idea when you have monster sized plants..

Finally, keep.your drying room cool. We used to run a huge dehu in our drying room. A big Santa fe, but it just cranked out to much god damn heat. Probably because our drying room is encased (walls and ceiling) in 7/8 plywood on the inside and 1/16 steel sheeting on the outside... a little overkill but, if you had 30-40 lbs of buds in your drying room...

Anywho, we installed a small home depot wall banger in the wall (with a steel cage around it :) ) and it works perfectly to keep it a nice 70 degrees in there.

40 percent humidity the first 1-2 days. After chop, then 50 for a 2-3 days then set it and forget it at 60. Takes about 10 days total.
 
I think it's funny that you have that note on your profile that you don't want any friend requests, like anyone would want to be your friend you ignorant fuck, ignorantflying.
 

Dr. Who

Well-Known Member
Hugh co2 numbers will not supreme smell, well at least in my experience. It can suppress maturation of the buds but this is based on information from the fruit industry. Co2 will supress ethelyn amd ethelyn is what makes fruit mature.

The bananas in the store? They were picked green, very green, then gased with ethelyn when the needed to be shipped to the store.

Smell and taste are the results of the terpine profile of the bud. What destroys terpines is intense light and heat. Some are destroyed at as low of temps as 75 degrees.

High co2 near the end is just a waste as the plants are not chugging like they do during veg and the first half of flower. After the flowers bulk up, things really slow down and theor metabolic rate is low enough that the can't take advantage of elevated co2 levels.

If you want to increase smell then raise the lights in the last week or two before harvest and crank the AC.

If your in hydro, also turn down water temps to pretty much as low as you can. Cutting water depths in 1/2 is also good if your in dwc.

We can't raise our lights because we are vertical but we do set the thermostat on the AC to 67, which results in leaf temperatures closest to the bulb to be around 75.

Harvest before the lights come on, we don't do the whole kill the lights until your done trimming because we harvest the tops and then harvest the lowers about a week to 10 days later.. also.a good idea when you have monster sized plants..

Finally, keep.your drying room cool. We used to run a huge dehu in our drying room. A big Santa fe, but it just cranked out to much god damn heat. Probably because our drying room is encased (walls and ceiling) in 7/8 plywood on the inside and 1/16 steel sheeting on the outside... a little overkill but, if you had 30-40 lbs of buds in your drying room...

Anywho, we installed a small home depot wall banger in the wall (with a steel cage around it :) ) and it works perfectly to keep it a nice 70 degrees in there.

40 percent humidity the first 1-2 days. After chop, then 50 for a 2-3 days then set it and forget it at 60. Takes about 10 days total.
I gotta ask......You mentioned increased dehumidifying during Co2 in bloom use......I wouldn't.
I mean to run the Co2 you need to.

Run higher temps - 85 to 90 as you said (I like 86-88)
When you run the higher temps to make the Co2 effective again. You need to run the RH around 75% to 80% or you risk stomata "closing"/"shrinking" to reduce the effect OF the Co2 by lower RH values.....

There is like a bell curve up in needs of
Light
Temps
RH
ppm of available Co2

Correct?

Or did I miss something somewhere in this thread..

Not intending to offend or attack but it's what I learned.

Doc
 

ttystikk

Well-Known Member
I gotta ask......You mentioned increased dehumidifying during Co2 in bloom use......I wouldn't.
I mean to run the Co2 you need to.

Run higher temps - 85 to 90 as you said (I like 86-88)
When you run the higher temps to make the Co2 effective again. You need to run the RH around 75% to 80% or you risk stomata "closing"/"shrinking" to reduce the effect OF the Co2 by lower RH values.....

There is like a bell curve up in needs of
Light
Temps
RH
ppm of available Co2

Correct?

Or did I miss something somewhere in this thread..

Not intending to offend or attack but it's what I learned.

Doc
Are you referring to VPD, or vapor pressure differential? Chart;
downloadfile.jpeg

If it's the reference I remember, he was saying that his nighttime RH levels spiked when he used CO² supplementation. This wasn't because he kept running CO² after dark, it was because of increased plant metabolism and growth.
 

Dr. Who

Well-Known Member
Are you referring to VPD, or vapor pressure differential? Chart;
View attachment 3544452

If it's the reference I remember, he was saying that his nighttime RH levels spiked when he used CO² supplementation. This wasn't because he kept running CO² after dark, it was because of increased plant metabolism and growth.
See! I was confused...

The tread started in 2011 and I just skimmed.....

Yup the more they get the more they use......I never really noticed a night time RH problem in my ops though.
Then again I'm running mostly/nothing but - nothing but and nothing but respectively central AC/Heat with programmable controls.....Differing settings for N/D and I simply don't have to monitor ...


Thanks for clearing that up ttytikk!

Doc
 
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