Grams Per Day: Determining Cannabis Yield Success by Weight
- Thread starter Rider509
- Start date
That's kinda cool tool! Thanks for the link maddabber. Off topic...anyone recommend a rosin press ?
- Thread starter
- #103
Rider509
Well-Known Member
1000g / 600W / 100days / 16ftsq / $50 nutrient cost = 0.2083g/W/day/ftsq/$
- Thread starter
- #104
Rider509
Well-Known Member
Who grows with HPS any more? LOL, just kidding.
That hps calculator was almost dead on with everything I entered n yep I use hps!
PurpleGunRack
Well-Known Member
HipPeopleStuff 
Nothing wrong with led! Just used hps so long n everything dialed in running flawless . Kinda hard to change when nothing wrong
- Thread starter
- #109
Rider509
Well-Known Member
That's what the village wagon wheel maker said.
I still use HPS too. I turned it upside down and cook pancakes on it.
Okay, okay, I actually vegged the Thaibodian Skunk under MH and began flowering under HPS until a spot in the flower room opened up. Guilty as charged.
I could see heat being a issue in alot of the country. I'm fairly far north in the Rockies and in hottest part of summer my room might hit 88° but in the winter I can heat half my house with 2 1000 watters!
gr865
Well-Known Member
@ Marzbadrock nice problem to have, my summers are burners, High 90's to 100's, nights high 70's and to 80's. Humidity always around 85 to 95%.
Damn I need to move.
I used HPS but switched to 315W CMH a few grows ago. Was heat issues for me, now I am very glad I did. Got decent results with the HPS but these 315's kill it.
Damn I need to move.
I used HPS but switched to 315W CMH a few grows ago. Was heat issues for me, now I am very glad I did. Got decent results with the HPS but these 315's kill it.
I actually have to run heater in flower room from about November to June when lights off. I'm building 10 light flower room this summer so I'll probably be dealing with some heat issues in there.
36growingnoob
Well-Known Member
Well did yall ever figure this stuff out
36growingnoob
Well-Known Member
Givens:
G=grams harvested
W= watts of lights used for grow space.
D= number days grown
G grams÷W watts= X gpw (grams per watt)
X gpw / D days= Y gpwpd
Now factor in the sell price per Gram for 2 plants call them A and B.
Bud A resales for $10/g
Bud B resales for $13/g
Which grow will give the best return on the space resources used?
A = Ygpwpd x $10/g total return of. 10Y$pwpd
B= Ygpwpd x $13/g total return of 13Y$pwpd
Example given
Grower produces 280 grams under 630 w for 90 days for plant A. Plant resales $10/ g.
325grams is produced in 114 days with same light and retails for $13.
Which is most economical return?
G=grams harvested
W= watts of lights used for grow space.
D= number days grown
G grams÷W watts= X gpw (grams per watt)
X gpw / D days= Y gpwpd
Now factor in the sell price per Gram for 2 plants call them A and B.
Bud A resales for $10/g
Bud B resales for $13/g
Which grow will give the best return on the space resources used?
A = Ygpwpd x $10/g total return of. 10Y$pwpd
B= Ygpwpd x $13/g total return of 13Y$pwpd
Example given
Grower produces 280 grams under 630 w for 90 days for plant A. Plant resales $10/ g.
325grams is produced in 114 days with same light and retails for $13.
Which is most economical return?
36growingnoob
Well-Known Member
280g÷630w÷90d×10$/g= .049 dollars per watt per day.
325g÷630w÷114d x 13$/g=
.045 dollars per watt per day
Plant A is more profitable.
325g÷630w÷114d x 13$/g=
.045 dollars per watt per day
Plant A is more profitable.
Option B....
36growingnoob
Well-Known Member
Why is that @Marzbadrock
A......$2800 return ÷ 90 days = $31.11 a day = .049 per watt per day
B......$4225 return ÷ 114 days = $37.06 a day = .058 per watt per day
B......$4225 return ÷ 114 days = $37.06 a day = .058 per watt per day
I used your formula to and came up with same numbers or is there something obvious I'm missing? Wouldn't be first time!
BtW! I converted to quantum boards! Thanks Purplegunrack!
BtW! I converted to quantum boards! Thanks Purplegunrack!
36growingnoob
Well-Known Member
You are ignoring how many watts that light is using in the additional days for the grow. This lowers your return..That is why you would look at the watts per day to begin with
