GPW (Grams Per Watt) standing calculation method

BM9AGS

BM9AGS

Well-Known Member
whitebb2727 said:
R

This was covered in a previous conversation was it not?

I said exactly as racer did. Gpw over time. Even then it gets complicated. You take racers thought a little farther. Let's say three month and six month grow and both are 600 grams with 600 watt light. Both flowered for two months. That means one vegged for a month and one for four months. That's means the second grow was even worse.

What if it is two 60 day grows with a 600 watt light and both hit 600 grams but the first vegged with a 24/0 light schedule and the second with a 18/6 light schedule?

What if the first was autos with a straight 20/4 light schedule.


There can be no standard. No way to say. There are to many variables to state that the average of x light is x gpw.
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I added time to the data so that growers can see the comparison of weeks vegged along with GPW Along with medium and strain and light type and plant number

There are many many variables.
I'm attempting this to see consistencies.
I can always abort it or change

https://www.rollitup.org/t/compilation-of-grams-per-watt-gpw-for-reference.885220/
 
Yodaweed

Yodaweed

Well-Known Member
BM9AGS said:
Yeah I am stuck on it. Until I establish its true value my mind won't change TBH.

If you had all the money needed but only limited space, from your data I'd say led would be the better yield IF using scrog for that limited space even if you're spending 5x the cost on lighting.

I'm not sure where captainmorgan is growing to get 2+. I'm in a legal state keeping my grow completely legal so if you wanna share your cuts that would be cool....unfortunately I don't have the same to offer you.
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I share some cuts but not others, been passing out some of the gorilla glue #4 since it was gifted to me. I'm in Colorado if you are .
 
whitebb2727

whitebb2727

Well-Known Member
You just dont grasp it. Its pointless. You and I could run the same everything. Light, strain, pots, water, nutes, everything and will have different outcomes.

Oh and be sure to add elevation, ambient outside temp. What about local pollutants in the air? You going to add levels of c02 to it? What about people running tap water. Is there a filter on that water. What about different soils. What about the inconsistency of soil from batch to batch.

What about organics and each and every amendment used? The rate they are used?

Do yourself a favor. Gpw is pointless.
 
BM9AGS

BM9AGS

Well-Known Member
whitebb2727 said:
You just dont grasp it. Its pointless. You and I could run the same everything. Light, strain, pots, water, nutes, everything and will have different outcomes.

Oh and be sure to add elevation, ambient outside temp. What about local pollutants in the air? You going to add levels of c02 to it? What about people running tap water. Is there a filter on that water. What about different soils. What about the inconsistency of soil from batch to batch.

What about organics and each and every amendment used? The rate they are used?

Do yourself a favor. Gpw is pointless.
Click to expand...
We can arm wrestle over it bro.
 
Yodaweed

Yodaweed

Well-Known Member
whitebb2727 said:
You just dont grasp it. Its pointless. You and I could run the same everything. Light, strain, pots, water, nutes, everything and will have different outcomes.

Oh and be sure to add elevation, ambient outside temp. What about local pollutants in the air? You going to add levels of c02 to it? What about people running tap water. Is there a filter on that water. What about different soils. What about the inconsistency of soil from batch to batch.

What about organics and each and every amendment used? The rate they are used?

Do yourself a favor. Gpw is pointless.
Click to expand...
This is what I was trying to get at. You would have to grow in a lab to have predictable outcomes and even then you will be having varying outcomes. I know dispensaries with multi-million dollar setups that cannot replicate results. There are so many variables in growing anything that it is impossible to replicate the outcome. Gram per watt can basically only show if you had a good grow or not but should not be compared to others unless you stroking your epeen.
 
BM9AGS

BM9AGS

Well-Known Member
whitebb2727 said:
You ever heard kiss? Keep it super simple?
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kiss is keep it simple stupid. You can say it could apply to me a lot. I'm gonna compile this whether you like it or not. Lol.
It's entertaining to me to gather data ok. I'm a fucking dork.

Now, please add your results to the compilation thread. I'd really appreciate it and the time you spent on something worthless for some geek online.
 
whitebb2727

whitebb2727

Well-Known Member
BM9AGS said:
We can arm wrestle over it bro.
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Sure why not. That makes more sense than what your doing. I get it. You want a baseline to improve on. You are just failing to realize that a gpw figure has no meaning.

Don't forget to add the brands of bulbs, and age of bulb to the data.

Also, let's not forget that every 4x4 is not the same. Add the size of fan and filter. I guess the brand and age to. Also add the location of inlet and outlet locations. Length of ducting, number of bends. Duct silencer. We got to cover all bases.
 
BM9AGS

BM9AGS

Well-Known Member
Yodaweed said:
This is what I was trying to get at. You would have to grow in a lab to have predictable outcomes and even then you will be having varying outcomes. I know dispensaries with multi-million dollar setups that cannot replicate results. There are so many variables in growing anything that it is impossible to replicate the outcome. Gram per watt can basically only show if you had a good grow or not but should not be compared to others unless you stroking your epeen.
Click to expand...
Totally no epeen I have as I'm expecting less than 1gpw for my current grow and is be happy with it!
 
BM9AGS

BM9AGS

Well-Known Member
whitebb2727 said:
Sure why not. That makes more sense than what your doing. I get it. You want a baseline to improve on. You are just failing to realize that a gpw figure has no meaning.

Don't forget to add the brands of bulbs, and age of bulb to the data.

Also, let's not forget that every 4x4 is not the same. Add the size of fan and filter. I guess the brand and age to. Also add the location of inlet and outlet locations. Length of ducting, number of bends. Duct silencer. We got to cover all bases.
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I was gonna add music played for the plants. As some people believe that has an affect.

That's a joke BTW
 
BM9AGS

BM9AGS

Well-Known Member
Yodaweed said:
The carbon dioxide produced by breathing , or singing will benefit your plant. Playing a music box will not help. They did a mythbusters on this check it out.
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Adding that to my data.
Live music vs radio. The plants will know which is BS
 
whitebb2727

whitebb2727

Well-Known Member
I may sound a little dickish. I was just making a point. I would be less concerned with gpw and what everyone else gets. Its complicated.

Just concentrate on growing good product and be happy doing it. That's all that matters.
 
Yodaweed

Yodaweed

Well-Known Member
BM9AGS said:
They are females.....
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I grow some males :)
Gotta make seeds :)
Really excited about my next grow got a pack of regular sinmint cookies and a pack of feminized white fire og, if I get a good male i'm doing an open pollination.
 
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