Is It Possible to Pull 2400g Off 2x600w???

[oHsiN666]

well just for the record i stopped reading at page 3...and i found the info i needed from starting this thread. thanks for all who provided insightful info.

 

[alotapot]

The Theory
The theory behind the 18 hour Day/Night cycle is that during a normal 24 hour light cycle plants will usually achieve high growth rates peaking at 100% capacity during the first 50 - 60% of the day. The growth rates will then diminish rapidly and the last 20 - 30% of the day achieves minimal growth. So by reducing the length of the day we are triggering an increased growth mode where the growth rates are at their peak for the majority of the day. This effectively achieves a very fast growth cycle with full yield potential.
NOTE: To achieve these incredible growth rates it is important to provide maximum light intensities and CO2 enriched conditions. The recommended lighting is 600W per square meter.

The Cycles
Vegetative Cycle - Lights ON 14 hours, Lights OFF 4 hours
Flowering Cycle - Lights ON 6 hours, Lights OFF 12 hours
The Benefits
The growth achieved during an 18 hour cycle can be the equivalent to that achieved during a 24 hour cycle. So by running 18 hour cycles the same growth and yield can be achieved in 75% of the time.
Reduced day lengths also mean reduced power consumption. Grow more and use less power. Who can argue with that?
For example, an average crop grown from seed using a 24 hour day/night cycle will have a 4 weeks grow cycle and an 8 weeks flower cycle. This equates to 28 days @ 18 hours a day and 56 days @ 12 hours a day = 1176 hours of light over 12 weeks.
An accelerated crop using an 18 hour day/night cycle will achieve the same yields using a 3 week grow cycle and a 6 week flower cycle. This equates to 21 days @ 14 hours a day and 42 day
but to each thier own

I can vouch for "alternative" light cycles, I've tried it when I ran a smaller space. I haven't since moving up to larger space and more and better gear. I *might* look at revisiting the idea... not sure..

alp

 

[alotapot]

Just wanted to chime in and clutter up this post.... Dank is hating for sure. He puts lights on for 6, off for 12. You seem to be caught up in his numbers being equal to 24. Why? Who said you must leave lights on/off for a combined total of 24 hours each day? Lights on at 10am, off at 4pm, on at 4 am, of at 10 am(24 hours elapsed time), on at 10pm, off at 4 am, on at.....should i continue? So I used his way of growing....and used the number "24" all at the same time. Everyone should be happy now. * sorry to be way off topic

Completely agree! The number of hours we make a day is totally subjective to a plant in a sealed chamber. The only factors that need attention are that the plant has enough on or off time to avoid unnecessary stress.

alp

 

[alotapot]

Yeaah its nearly impossible to do it horizontally but was surprised to see it be done vertically in Heaths thread. I am planning a vertical grow myself but not the Colosseum type ones just a normal horizontal grow but with multiple vertical lights at plant level instead

Agreed! A number of years ago I was working with some folks that were pulling ASTOUNDING yields in this format. The rooms were dialed in to perfection and there was no expense spared, when I left to go my own way they were coming close to 1.5 lbs/plant. It was an awe inspiring site I gotta tell ya...

alp

 

[oHsiN666]

maybe i should read the pages i didnt read, when i have the time of course. today is detailing the room day.... back to the lair!!

 

[ImAgIaNtInDaGrOwWoRlD]

No problem bro. And you would need exactly 42.32 ounces to make 1gpw. You can definitely get your grow higher by doing a number of tweaks. There are a number of things that effect your yield e.g temperature, humidity, veg time, pot size, ensuring there is no stress and doing a number of training techniques.

I do have a great setup. Everything is dialed in perfectly. I had 19 plants of a small yielding strain and filled in with other even smaller yielding strains. I had 2 plants that gave good yields out of 42. LOL I was going for quality over quantity this run. Ill have to see what I get from a big yielding strain some time.
To be honest, I dont know anyone whos yieded 42 ounces of dry bud off 2 600w lamps.

 

[phillipchristian]

I do have a great setup. Everything is dialed in perfectly. I had 19 plants of a small yielding strain and filled in with other even smaller yielding strains. I had 2 plants that gave good yields out of 42. LOL I was going for quality over quantity this run. Ill have to see what I get from a big yielding strain some time.
To be honest, I dont know anyone whos yieded 42 ounces of dry bud off 2 600w lamps.

Check out that thread that OGE posted a few pages back. 46 ounces from 1 600w.

 

[smok3y1]

OGEvil what training method do you use?? do you top or anything like that?? thanks!

Agreed! A number of years ago I was working with some folks that were pulling ASTOUNDING yields in this format. The rooms were dialed in to perfection and there was no expense spared, when I left to go my own way they were coming close to 1.5 lbs/plant. It was an awe inspiring site I gotta tell ya...

alp

Daymm I wish I could pull those sort of yields! I wish there were more people using this method its hard to find any threads but that could be just me not looking in the right places :/

I do have a great setup. Everything is dialed in perfectly. I had 19 plants of a small yielding strain and filled in with other even smaller yielding strains. I had 2 plants that gave good yields out of 42. LOL I was going for quality over quantity this run. Ill have to see what I get from a big yielding strain some time.
To be honest, I dont know anyone whos yieded 42 ounces of dry bud off 2 600w lamps.

I would personally ditch the small yielding strains. I am planning on having a Super Lemon Haze grow myself heard nothing but good comments on the smoke/stone and it has a good yield apparently. I forgot to add genetics/strain in that list aswell which is one of the most important things aswell. The problem with having a goal of 1 gpw though is it does not take in to consideration things such as veg time which makes a HUGE difference. Obviously someone who vegs for 4 weeks will have a higher yield compared with someone who goes straight in to 12/12

 

[norcalreppin77]

I have seen someone on the forum that got close to 5 with 3 600w. He was doing a veritcal grow, with critical mass. The plants where monsters, I think it was Heath Robinson. Don't quote me on that though. He was running the aqua farm buckets and he only had 2 plants going.

 

[norcalreppin77]

https://www.rollitup.org/grow-journals/101347-critical-mass-tree-grow-x.html

Here we are.

 

[OGEvilgenius]

What works best for training and topping depends on how you're growing completely. If you are simply going to hang a bulb vertically and grow from pots on the ground it would depend on the genetics, how many plants etc but I find that growing them out without topping or fimming tends to work well. The side growth is strong anyway with the light coming from that direction. I then put them into bondage to get a little scrog sort of effect pulling branches forward with LST etc as I don't flip my plants. Some people just flip their plants so each side gets 6 hrs full intensity and I couldn't say which is better.

 

[pointswest]

Lots of speculation on this grow by people quoting numbers they could never achieve themselves. Only you will be able to tell us how much you can produce in your grow room. My guess is anything over 1/2 # is a blessing.

PW

 

[phillipchristian]

Lots of speculation on this grow by people quoting numbers they could never achieve themselves. Only you will be able to tell us how much you can produce in your grow room. My guess is anything over 1/2 # is a blessing.

PW

Actually, if you read the thread you will see a bunch of people quoting numbers they HAVE achieved and then talking about growers who HAVE achieved 2gpw. If you are only able to get .5gpw then maybe you should start reading some more threads to learn a few things.

 

[dirtysnowball]

oh man you want 2g per watt... fuucck i get like 1.1g per watt. but i will tell you a secret, if you grow "vertical" as in: a scrog wrapped 360 degrees around your lights, you can get 2g per watt. VERTICAL FTW!!!

here lets do some math, assuming: your using 2 1000w lights, and MJ generally yields 350-450g per 4x4 1000w scrog
if you did a normal scrog(4x4 per 1000w so really 8'x4') you could get at least 700g and at most you'd get 900g. thats for 8'x4'(32 square feet) scrog with 2000w

but if you grow vertical, assuming you make a 4' diameter circle that is 5' tall,
you get =((radius x radius)x3.14) x hight)
reduce it = (4' x 3.14) x 5'
final answer = 62.8 square feet of growing area.

thats 1400g-1800g total be happy

 

[phillipchristian]

oh man you want 2g per watt... fuucck i get like 1.1g per watt. but i will tell you a secret, if you grow "vertical" as in: a scrog wrapped 360 degrees around your lights, you can get 2g per watt. VERTICAL FTW!!!

here lets do some math, assuming: your using 2 1000w lights, and MJ generally yields 350-450g per 4x4 1000w scrog
if you did a normal scrog(4x4 per 1000w so really 8'x4') you could get at least 700g and at most you'd get 900g. thats for 8'x4'(32 square feet) scrog with 2000w

but if you grow vertical, assuming you make a 4' diameter circle that is 5' tall,
you get =((radius x radius)x3.14) x hight)
reduce it = (4' x 3.14) x 5'
final answer = 62.8 square feet of growing area.

thats 1400g-1800g total be happy

Lol, go back about 5 pages in this thread and look for the link that OGE posted. Vertical stadium grow. 1288g off a 600w lamp.

 

[WSRidahs]

You should have no problem running 2k in a 4x8 tent. I run 2k in a 5x5.

 

[kermit2692]

if you have to ask this question then your answer is no.....maximizing yield is a hard art to master and the goal you've set is a pretty high one ...personally i know i couldnt do it one light per meter squared = 2 meters squared at 600 grams a piece is only 1200 which is half your goal...anyway point being the guy that can pull this off is never gonna be the guy asking if he can

 

[phillipchristian]

You should have no problem running 2k in a 4x8 tent. I run 2k in a 5x5.

2,000w in a 5x5? You don't have problems with bleaching or keeping that cool? Seems like OVERKILL to me.

 

[OGEvilgenius]

2,000w in a 5x5? You don't have problems with bleaching or keeping that cool? Seems like OVERKILL to me.

If he's got em hanging vertically I can see it working ok. Just need squat strains that don't stretch much (which let's face it, most people tend towards anyway).

I think it's overkill as the results wouldn't be that much better than with a 600 IMO, but I'm sure they are still better. If he uses cooltubes it's just that much easier. I find with my 600 I only get bleaching if the plant stretches right into the cooltube glass.

 

[phillipchristian]

If he's got em hanging vertically I can see it working ok. Just need squat strains that don't stretch much (which let's face it, most people tend towards anyway).

I think it's overkill as the results wouldn't be that much better than with a 600 IMO, but I'm sure they are still better. If he uses cooltubes it's just that much easier. I find with my 600 I only get bleaching if the plant stretches right into the cooltube glass.

LOL, I keep forgetting about the vertical. I can see it with 2 verticals. But if they are bare bulb then that sure seems like a waste of space. I mean a bare bulb 1000w will limit where and how many plants you can have in a 5x5 space for sure.