Highest yield 4x4 tent...

xtsho

xtsho

Well-Known Member
Keesje said:
Do you have a link to a legitimate grow report where people achieved such yields?
Click to expand...
A legitimate grow report? You can find all sorts of information if you search. The thing is that anyone doing is not likely to be posting about growing that many plants as they are going to be way over the plant limits even in legal states. There is some information available from various sources though. I've grown plants in small containers and achieved over an ounce. I don't see why packing more together wouldn't yield the same result per plant just more of them.


1oz+ per plant SoG, doable?

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What Is The 'Sea Of Green' Marijuana Growing Method?

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Keesje

Keesje

Well-Known Member
xtsho said:
A legitimate grow report? You can find all sorts of information if you search. The thing is that anyone doing is not likely to be posting about growing that many plants as they are going to be way over the plant limits even in legal states. There is some information available from various sources though. I've grown plants in small containers and achieved over an ounce. I don't see why packing more together wouldn't yield the same result per plant just more of them.
Click to expand...
Because there are more factors that can influence growth. Less ventilation in between the plants, less CO2 available, different evaporation, etc. It is not necessarily the case that if 1 plant has a yield of 20 grams in a 1 gallon container, that 100 plants in a 1 gallon container yield 2000 grams when they are packed on a small spot.

When growing wasn't legal, there were plenty of people growing SOG as well. Including myself.
However, I have never seen anyone achieve a yield of over 4.5 lbs on a 4x4 under 1000 Watt. Not even with the addition of CO2.
People say they succeeded, but I have never seen a photo of such a growth or a growth report.
So that is why I am curious about such posts.
 
xtsho

xtsho

Well-Known Member
Keesje said:
Because there are more factors that can influence growth. Less ventilation in between the plants, less CO2 available, different evaporation, etc. It is not necessarily the case that if 1 plant has a yield of 20 grams in a 1 gallon container, that 100 plants in a 1 gallon container yield 2000 grams when they are packed on a small spot.

When growing wasn't legal, there were plenty of people growing SOG as well. Including myself.
However, I have never seen anyone achieve a yield of over 4.5 lbs on a 4x4 under 1000 Watt. Not even with the addition of CO2.
People say they succeeded, but I have never seen a photo of such a growth or a growth report.
So that is why I am curious about such posts.
Click to expand...
I haven't either. But I believe it is possible. I know some of the grow operations in Europe are achieving it because you can find pictures online. But those are more commercial operations with everything 100% dialed in. But you are correct that there are more factors than just cramming a bunch of plants into a tent to achieve that. And if anything goes wrong you have invested a ton of plants and effort.

Maybe one of these days I'll say to hell with plant counts and give it a go.
 
Flowki

Flowki

Well-Known Member
Keesje said:
When growing wasn't legal, there were plenty of people growing SOG as well. Including myself.
Click to expand...
It was only 5 year ago when led was bad and most of the leaps in hps were not there. Most people were using lawn feeder for synthetics and pissing in their pots for organics. I'm taking it to the comical extreme slighty but honestly... you can barely compare 3 year ago avg yield to now, for the avg grower, who are surpassing 0.9gpw by reading a few forum posts. So what about pros with good hps/led and complete dial in?. The average high end amateur is pulling 1.2+ as a minimum, so do we want to put pro's at 1.5?. Don't seem worth being a pro when you break all that extra effort down.
 
Boatguy

Boatguy

Well-Known Member
Flowki said:
It was only 5 year ago when led was bad and most of the leaps in hps were not there. Most people were using lawn feeder for synthetics and pissing in their pots for organics. I'm taking it to the comical extreme slighty but honestly... you can barely compare 3 year ago avg yield to now, for the avg grower, who are surpassing 0.9gpw by reading a few forum posts. So what about pros with good hps/led and complete dial in?. The average high end amateur is pulling 1.2+ as a minimum, so do we want to put pro's at 1.5?. Don't seem worth being a pro when you break all that extra effort down.
Click to expand...
I pulled 1.5 per w under led easily. The bar should be set much higher
 
RobMac315

RobMac315

Well-Known Member
I go back to black dogs grows. 4x4 1050 watts. Can't remember fully but I think 3.5lbs were about the figure. Say that's about 1.5 per watt. Fark when you look at that tent it is PACKED. And that I think is a 10week veg with all the good shit(no co2 though). That's the best Ive seen
 
Keesje

Keesje

Well-Known Member
Flowki said:
It was only 5 year ago when led was bad and most of the leaps in hps were not there. Most people were using lawn feeder for synthetics and pissing in their pots for organics. I'm taking it to the comical extreme slighty but honestly... you can barely compare 3 year ago avg yield to now, for the avg grower, who are surpassing 0.9gpw by reading a few forum posts. So what about pros with good hps/led and complete dial in?. The average high end amateur is pulling 1.2+ as a minimum, so do we want to put pro's at 1.5?. Don't seem worth being a pro when you break all that extra effort down.
Click to expand...
Nutes did not improve that much since 10 years.
Simply because most nutes are based on the recipes of the pros like Yara and Peters. No major developments have taken place for these pro brands. Also not more developments in cannabis brands. There are more brands and they come up with more ridiculous additives.

In addition, it does not matter whether you grow under LED or HPS. It is about the amount of umol that is shining down on your plants.
If you first achieved 1 gram per Watt with HPS and now 1,7 grams per Watt with LED, that makes no difference if you previously had 1000 Watt HPS and now 600 Watt LED.
The amount of umol is probably the same if you have top notch led. Of course you can also install 900 Watt LED, but you could have also installed 1500 Watt HPS. (If you can control the heat of course)
But it is not the case that we have obtained a higher yield per surface because of LED.
We got more yield per Watt from the wall. But the space still remains 4 x 4.

In this topic we are talking about yield in a 4 x 4.
The yield per square foot is important.

But I am waiting for a pics or grow reports. I don't care from what forum, country or source.

RobMac315 said:
I go back to black dogs grows. 4x4 1050 watts. Can't remember fully but I think 3.5lbs were about the figure. Say that's about 1.5 per watt. Fark when you look at that tent it is PACKED. And that I think is a 10week veg with all the good shit(no co2 though). That's the best Ive seen
Click to expand...
Do you have a link to this grow report?
Almost 1600 grams on a 4 x 4 is also something I never saw.
So I am curious.
 
Last edited:
Dr. Who

Dr. Who

Well-Known Member
Keesje said:
Still curious...

Where there other strains that you experimented with?

Do you have any growreports or pics of grows with such huge yields?
Click to expand...
I did this around a decade ago, Notes say it was 12 years ago for the 2x2 test space and 14 years ago for the tent work..

Back then it was ag'in the law period. I never took pictures in the old days. That gives cops a record of what you've done. Now imagine the charges they would hit you with, by estimating the yields over years and years. I have a friend in prison that was sentenced to manufacture of over 15,000lbs.
The feds hit him with a tax bill for that estimated total by value... He's in a Federal pen for life.......3rd drug offence.

I don't take many pictures now either. Those I do, don't last long AND ARE NEVER STORED ON MY PC! Direct use only...


Don't save pictures! It can bite you HARD!

I tried a cpl of high yielding strains and could not get that result. It took trying 4 different strains and even the G13 was run twice before I broke the 1 zip per pot yield in that tent set up.

If you want GPW

SOG IS the only way to go.. What I did in a flood and drain system that was 2x2 and run with 4in Rockwool cubes... Kills the 4x4 GPW!
The light was a 250w MH/HPS.
 
Dr. Who

Dr. Who

Well-Known Member
Keesje said:
Nutes did not improve that much since 10 years.
Simply because most nutes are based on the recipes of the pros like Yara and Peters. No major developments have taken place for these pro brands. Also not more developments in cannabis brands. There are more brands and they come up with more ridiculous additives.

In addition, it does not matter whether you grow under LED or HPS. It is about the amount of umol that is shining down on your plants.
If you first achieved 1 gram per Watt with HPS and now 1,7 grams per Watt with LED, that makes no difference if you previously had 1000 Watt HPS and now 600 Watt LED.
The amount of umol is probably the same if you have top notch led. Of course you can also install 900 Watt LED, but you could have also installed 1500 Watt HPS. (If you can control the heat of course)
But it is not the case that we have obtained a higher yield per surface because of LED.
We got more yield per Watt from the wall. But the space still remains 4 x 4.

In this topic we are talking about yield in a 4 x 4.
The yield per square foot is important.

But I am waiting for a pics or grow reports. I don't care from what forum, country or source.


Do you have a link to this grow report?
Almost 1600 grams on a 4 x 4 is also something I never saw.
So I am curious.
Click to expand...
There is a fellow that builds and sells his own RDWC systems that blast's my 4x4 yield out of the water.
He posts here every now and then...
He has pictures of his system and of his 13lb yields in a space that I called BS on... I got "educated" by this guy on his style.
Yup, He did it...

In a commercial grow. The only way you can run LED is by running short plants and high #'s. DE 1K's are the due rigor for commercial ops..
You just can't get the same penetration light wise.
How ever. I have my self been running custom built LED banks that surpass the HLG 500's. They cost HALF of what the "name brand" HLG's run.

I cut about 18" or more off my run height.
Use a bloom screen
Spread 4 plants to cover the 5x5 used footprint
Lollypop them hard....
Get the same yields as before under 1K's and have better bag appeal/bud size average.
I also see better more solid positive finish's. FASTER then with the HID..

After 2 complete runs from the LED's. Including from an HLG and HID.
I chose to change over to the LED's for $ savings and even better temp control.

These are available on EBAY and facebook - HYGRO lighting solutions. He has about a 2-3 weeks waiting list. Some times less.
 
Keesje

Keesje

Well-Known Member
Dr. Who said:
He has pictures of his system and of his 13lb yields in a space that I called BS on... I got "educated" by this guy on his style.
Yup, He did it...
Click to expand...
13 lbs on what space?

I hear stories already for many years that people have amazing yields.
But... stories. Never a day to day grow journal or pics.

I know some very good growers where I live in Europe.
They do really well and some of them have state of the art dialed in rooms and years of experience.
Never did they achieve the amounts that some mention here.
 
Flowki

Flowki

Well-Known Member
Boatguy said:
I pulled 1.5 per w under led easily. The bar should be set much higher
Click to expand...
Exactly.

Keesje said:
Nutes did not improve that much since 10 years.
Simply because most nutes are based on the recipes of the pros like Yara and Peters. No major developments have taken place for these pro brands. Also not more developments in cannabis brands. There are more brands and they come up with more ridiculous additives.

In addition, it does not matter whether you grow under LED or HPS. It is about the amount of umol that is shining down on your plants.
If you first achieved 1 gram per Watt with HPS and now 1,7 grams per Watt with LED, that makes no difference if you previously had 1000 Watt HPS and now 600 Watt LED.
The amount of umol is probably the same if you have top notch led. Of course you can also install 900 Watt LED, but you could have also installed 1500 Watt HPS. (If you can control the heat of course)
But it is not the case that we have obtained a higher yield per surface because of LED.
We got more yield per Watt from the wall. But the space still remains 4 x 4.

In this topic we are talking about yield in a 4 x 4.
The yield per square foot is important.

But I am waiting for a pics or grow reports. I don't care from what forum, country or source.


Do you have a link to this grow report?
Almost 1600 grams on a 4 x 4 is also something I never saw.
So I am curious.
Click to expand...
Nutrients may not have changed massively per say but peoples understanding of them have, along with pointless flushing in most cases, N starving plants in flower, things like that. All of those small changes add up to a far healthier plant and far more people getting better results.

Hps if at small enough W (like 100) could be spread out to cover a 4x4 in a similar manner to Led, the results would likely be in close range (top bud quality). Single source high W hps is bad compared to spread out light for the home grower trying to get even coverage. Single source high W led would also be just as bad.. probably worse due to light bleaching issues forcing you to back right off. Since low W Led can be spread around far easier than hps, while also being more efficient/lasting longer, then by actual fact, led is logistically better than hps at giving consistent quality top bud across a given space, W for W.

I use to think quality and yield was closely relative, but not so sure now. With led you can lower the foot print and increase the overlap intensity slightly that way, quality or terp production will go up but yield goes down since the penetration seems to lack and you've lowered canopy area. Spread out the footprint and quality visually drops while yield does go up. This is in my observation. So it would seem that it might be a better idea to grow with Led in a stadium 4x4, in order to expand the canopy area within the same footprint. Pure flat canopy with a net and you seem to hit a penitration barrier with Led, more W doesn't mean more yield.

A guy only a few pages back stated he got 1.8gpw on his first indoor grow with only 4 plants (although he had experience). You can check him out and press for details to validate/invalidate. About 2 year ago I seen a guy on here who done a real sog, he was smashing it, I can't remember the thread but search for sogs I guess. I seen another around that time on you tube too. The reason I remember these is because I was going to copy them but could not be bothered with the massive overhaul, endless amounts of cuttings and extra work. If I could, then I'd 100% expect to be at 1.6/1,7gpw as an honest representation of my own level.
 
RobMac315

RobMac315

Well-Known Member
Keesje said:
Nutes did not improve that much since 10 years.
Simply because most nutes are based on the recipes of the pros like Yara and Peters. No major developments have taken place for these pro brands. Also not more developments in cannabis brands. There are more brands and they come up with more ridiculous additives.

In addition, it does not matter whether you grow under LED or HPS. It is about the amount of umol that is shining down on your plants.
If you first achieved 1 gram per Watt with HPS and now 1,7 grams per Watt with LED, that makes no difference if you previously had 1000 Watt HPS and now 600 Watt LED.
The amount of umol is probably the same if you have top notch led. Of course you can also install 900 Watt LED, but you could have also installed 1500 Watt HPS. (If you can control the heat of course)
But it is not the case that we have obtained a higher yield per surface because of LED.
We got more yield per Watt from the wall. But the space still remains 4 x 4.

In this topic we are talking about yield in a 4 x 4.
The yield per square foot is important.

But I am waiting for a pics or grow reports. I don't care from what forum, country or source.


Do you have a link to this grow report?
Almost 1600 grams on a 4 x 4 is also something I never saw.
So I am curious.
Click to expand...
Not a grow report but...https://youtu.be/wpCagQpSg0k
Here's the time lapse off youtube. I'm sure there's be a diary if you looked. Think the top link is over 3.5lbs
 
Keesje

Keesje

Well-Known Member
@Flowki
You keep on talking about how many grams per watt with led one could achieve.
I also think that this is possible.
But this whole topic is not about grams per watt.
It is about grams per 4 x 4.

If that is achieved by led or hps or candlelight is irrelevant.
 
A

Ardent

Member
Well Watts shouldn’t even come into the equation if we are talking only about maximum yield in a 4 x 4 space.

what I want to know is what umol/ppfd is optimum for maximum yield.

see I been using 750w de hps for years in 4x4 spaces, pulling about 1000g or 1.3 gpw.
Now trying led in same spaces and so far only hitting 750g or 1.3gpw
But I couldn’t care less about saving 200 Watts power if I’m losing 250g.

the leds are putting out 1200 umol without co2, which I’m told is saturation but I haven’t seen any light stress signals.
The 750w de hps was putting Out 1700 umol and about 900 umol on canopy edges.
 
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