A Gram Per Watt? How?

[lawlrus]

I'm growing in coir, is it possible to pull much from this? I know people joke around about "bout a lb" yeah, I get it. You aren't allowed to give people numbers.

But lets say everything is dialed in perfectly, the nutrients are close enough to optimum. Have much can I expect from this? It's a 2.75x2.75. 400w going, and I'm currently at my 2nd week of flower from these pics. They're much bigger now, the entire net is full. Roughly 70-80 budsites. It was topped 2x. ScRoGed. LSTed / 3 plants.

https://www.rollitup.org/attachments/img_1023-jpg.3637354/
https://www.rollitup.org/attachments/001-jpg.3637355/

Sorry for taking over the post OP, just don't understand this 1g/per watt conundrum whether its based off lumen output, how many plants you have - enviroment, training techiniques, genetics, equipment used, nutes etc etc

Really tough to say and there are a lot more variables than just overall grams/watts. Veg time needed to achieve a given yield, overall efficiency of lighting, quality relative to yield, etc. With that said, in my experience of running pure coco and with the assumption that we're talking about a new strain from seed and not a clone I'm familiar with, I've found that I can expect ~.5gpw as a baseline in a horizontal setup and .7-.8gpw on the bottom end for a vertical bare bulb setup.

 

[MrStickyScissors]

Even with sog what is 2 week veg even going to produce? Do a month you will yield so much more

In the time it take you to finsih vegging two crops i can flower a hole crop. I actually pull more with barley any veg i just have really high plant numbers.

 

[Feisty1UR]

Really tough to say and there are a lot more variables than just overall grams/watts. Veg time needed to achieve a given yield, overall efficiency of lighting, quality relative to yield, etc. With that said, in my experience of running pure coco and with the assumption that we're talking about a new strain from seed and not a clone I'm familiar with, I've found that I can expect ~.5gpw as a baseline in a horizontal setup and .7-.8gpw on the bottom end for a vertical bare bulb setup.

Is that in wet weight?

 

[lawlrus]

Is that in wet weight?

No, that would be extremely disappointing if I were referring to wet weight. GPW numbers generally refer to dry, manicured weight prior to the cure, and that's what I'm referring to when I quote a particular GPW.

 

[Feisty1UR]

No, that would be extremely disappointing if I were referring to wet weight. GPW numbers generally refer to dry, manicured weight prior to the cure, and that's what I'm referring to when I quote a particular GPW.

So with my 3 plants I can expect 600 grams in total? I was thinking more in the regions of 325-350 grams, after comparing other peoples AK-47/48 runs using the exact same methods/nutes. I'm probably looking at 115g / per plant.

 

[lawlrus]

So with my 3 plants I can expect 600 grams in total? I was thinking more in the regions of 325-350 grams, after comparing other peoples AK-47/48 runs using the exact same methods/nutes. I'm probably looking at 115g / per plant.

I can't tell you what you should expect from your plants, I can only comment on my own experience. What I'm saying is that in my personal experience with coco, given the variables I described, I can expect the numbers I mentioned. You may get less or you may blow any estimate out of the water. I always recommend planning for less rather than more so that you are pleasantly surprised.

 

[lawlrus]

Wait, I'm confused -- you have these flowering under one 400w, yes? As an example, if you were to just use the .5 GPW number for horizontal I mentioned above (and again, that would really be a shot in the dark, but if you did) you could roughly plan on around a half pound of dried and manicured flowers come harvest time. If you were running a vertical, using the .7-.8 GPW number above (we'll call it .75 GPW) you could expect roughly 300g of dried and manicured bud. Again, you could get way more or way less, but I've found that coco is forgiving enough in the yield department that you're not going to be too far off with those numbers as a baseline estimate.

One other thing I should have mentioned in my post above is that would be based on a 4-5 week veg, but again, so many different variables in play from strain to strain, environment to environment, etc.

I'm a little lost on where you got the 600g number from.

 

[Feisty1UR]

Wait, I'm confused -- you have these flowering under one 400w, yes? As an example, if you were to just use the .5 GPW number for horizontal I mentioned above (and again, that would really be a shot in the dark, but if you did) you could roughly plan on around a half pound of dried and manicured flowers come harvest time. If you were running a vertical, using the .7-.8 GPW number above (we'll call it .75 GPW) you could expect roughly 300g of dried and manicured bud. Again, you could get way more or way less, but I've found that coco is forgiving enough in the yield department that you're not going to be too far off with those numbers as a baseline estimate.

One other thing I should have mentioned in my post above is that would be based on a 4-5 week veg, but again, so many different variables in play from strain to strain, environment to environment, etc.

I'm a little lost on where you got the 600g number from.

"I can expect ~.5gpw as a baseline in a horizontal setup" I was thinking as I'm using 400w 0.5g/per watt 0.5 x 400 = 200. x 3 = 600? Idk, maybe I'm just being stupid. Wouldn't surprise me that's why I asked whether or not you meant wet weight

https://www.420magazine.com/forums/completed-journals/107772-coco-ak48-scrog-8.html

This guy got 5oz of dry bud from his best plant. Hes done pretty much everything exactly the same as how I've currently done and plan to do throughout the rest of flowering. Only difference is I've vegged for only 5 weeks. He vegged for 7 weeks.

 

[lawlrus]

"I can expect ~.5gpw as a baseline in a horizontal setup" I was thinking as I'm using 400w 0.5g/per watt 0.5 x 400 = 200. x 3 = 600? Idk, maybe I'm just being stupid. Wouldn't surprise me that's why I asked whether or not you meant wet weight

https://www.420magazine.com/forums/completed-journals/107772-coco-ak48-scrog-8.html

This guy got 5oz of dry bud from his best plant. Hes done pretty much everything exactly the same as how I've currently done and plan to do throughout the rest of flowering. Only difference is I've vegged for only 5 weeks. He vegged for 7 weeks.

I see what you're saying now. When I refer to a particular GPW I mean the overall yield in the space under the bulb, not the per-plant yield. So when I say I can expect .5 GPW as a baseline for a particular setup, say a horizontal 400w (like yours, or like my "overflow tent" that I have in the thread in my sig that is a horizontal scrog) I can comfortably expect 7-8 dried ounces at the end of the day regardless of whether I have 3-4 larger plants or 8-10 smaller plants or anything in between. Like I said, if you shoot low you can only be pleasantly surprised. I might also end up with 12 oz, but if I plan on 7-8 it's all icing on the cake.

 

[Enigmatic Ways]

"I can expect ~.5gpw as a baseline in a horizontal setup" I was thinking as I'm using 400w 0.5g/per watt 0.5 x 400 = 200. x 3 = 600? Idk, maybe I'm just being stupid. Wouldn't surprise me that's why I asked whether or not you meant wet weight

https://www.420magazine.com/forums/completed-journals/107772-coco-ak48-scrog-8.html

This guy got 5oz of dry bud from his best plant. Hes done pretty much everything exactly the same as how I've currently done and plan to do throughout the rest of flowering. Only difference is I've vegged for only 5 weeks. He vegged for 7 weeks.

0.5gx400w=200g...So your dry weight altogether would be 200 grams not 200gx3plants.

 

[Feisty1UR]

I see what you're saying now. When I refer to a particular GPW I mean the overall yield in the space under the bulb, not the per-plant yield. So when I say I can expect .5 GPW as a baseline for a particular setup, say a horizontal 400w (like yours, or like my "overflow tent" that I have in the thread in my sig that is a horizontal scrog) I can comfortably expect 7-8 dried ounces at the end of the day regardless of whether I have 3-4 larger plants or 8-10 smaller plants or anything in between. Like I said, if you shoot low you can only be pleasantly surprised. I might also end up with 12 oz, but if I plan on 7-8 it's all icing on the cake.

I get it, sorry. Thought it was individually divided into overall yield - thanks!

 

[Feisty1UR]

0.5gx400w=200g...So your dry weight altogether would be 200 grams not 200gx3plants.

Yeah. thanks for that

 

[ryan1918]

In the time it take you to finsih vegging two crops i can flower a hole crop. I actually pull more with barley any veg i just have really high plant numbers.

What are you pulling per plant on average and how many watts?

 

[ryan1918]

So with my 3 plants I can expect 600 grams in total? I was thinking more in the regions of 325-350 grams, after comparing other peoples AK-47/48 runs using the exact same methods/nutes. I'm probably looking at 115g / per plant.

No real way to answer that, It could depend how long you veg'd, the strain, what method of growing, how long your flower time is going to be, and depends how many watts you got going, I believe you can't really figure out exactly XX PER WATT because there is too many factors like veg time, I could veg for 4 months and probably pull 2-3 grams per watt, so it could vary so much, my average is 4-5 oz per plant, with 4 on the lowest except a few I had that messed up and some auto flowers I had running which don't yield much, for the low end I would say 1 oz per plant and on the high end 2oz that's what I always assume so if anything doesn't go right, or i run into problems that I'm not disappointed but when I pull 4-5 oz when I say 1oz makes me very happy, and I even got 2 that one will yield 6oz dry and another 7-10oz dry haven't cut it down yet so I won't know for sure.

 

[ryan1918]

1000 watts in a 3x3 is way overkill unless you think you can fit 3 lbs of nug in a 3x3 which is what would end up being a gpw after you controlled heating with the 1100 watts pulled by the bulb and ballast plus whatever ac you're using lol. Good luck with that one. It'd be cool to see, but I've seen 1.6 in a 3x3 and that was insanely crowded. 600 for a 3x3 is about perfect with hid.


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to hit a gpw he would only need 2 pounds? a 1000 watt doesn't cost but $30 a month to run so it's not really even that much in cost running it 12/12

 

[kmog33]

to hit a gpw he would only need 2 pounds? a 1000 watt doesn't cost but $30 a month to run so it's not really even that much in cost running it 12/12

2 lbs is ~910 grams. So if a 1k actually pulled only 1k but it actually pulls closer to 1100 you would need more than2 lbs for a gpw. Also I specified with whatever cooling. I'm assuming at least another 100-300 watts for that. Puts you between 1200-1500 grams, so closer to 3 lbs.

 

[ryan1918]

hate to say it but no one indoors is pulling 3 pounds per 1k light unless they are vegging for half of the year

 

[T.C. Bosby]

How does this rule apply to LED lights? I'm debating between 2 x TastyLED T2-2100 or 1 x Johnson CX-4 or 1 x CX-6. I know all three are good lights and have been recommended to me for a 3' x 3' grow tent, just not sure how these are measured against this rule, or guideline.

 

[Abiqua]

Gram Per Kilowatt Hour....which will take into account a short or long veg / flower timer with all the assorted doodads pulling juice from the wall....

How does this rule apply to LED lights? I'm debating between 2 x TastyLED T2-2100 or 1 x Johnson CX-4. I know both are good lights and have been recommended to me for a 3' x 3' grow tent, just not sure how these are measured against this rule, or guideline.

They will kill it...If you maintain over 500ppfd in your space and either of those lights should put you well above that in a 3x3 probably pushing 900 ppfd knowing..Steve! @johnson.., a gram a watt shouldn't be hard even on your 1st attempt.....Some after a few rounds are pushing 2/grams with similar spec. [strain dependent in most cases!!!! don't be expecting huge numbers from OG's or similar vice versa don't expect high thc from larfy high gpw buds just because of high intensity....]

 

[MrTwist1]

Gram Per Kilowatt Hour....which will take into account a short or long veg / flower timer with all the assorted doodads pulling juice from the wall....

Gram per Kilowatt hour is the true test, and this is where high efficiency lighting like COB LED shows it superiority. Gram per watt is subject to significant skewing as it does not take time into account.