Help me understand correlation between soil amount and plant yield.

[Guest]

OK, I have 7.5x7.5x9.5" buckets.. About 534 cubic inches, or 2.3 gallons of medium.

Now, obviously there are a ton of extrenuating factors, not limited to:
strain/pheno
nutes
watering
light cycle

and most importantly, veg time (which as I see it is more soil usage percentage, correct)

So if I have 2.3gallons of soil, and assuming all the above staying the same, there is a limit on plant size, and therefore yield.

So I guess what Im asking, is if you keep all the above standardized within a strain, is it a lateral correlation?

so would a 4.6 gallon bucket essentially yield 2 times as much? And if not, how much of a diminishing factor is there.

Clearly, growspace is ALSO a limitation for most of us, but assuming we had unlimited space, Im more interested in the correlation than reality right now.

 

[Mr. Nevermind]

bigger containers allow a larger rootmass to form. more roots allow the palnt to take in what it needs to feed. more roots equal more buds.








nevermind

 

[Unknown Stoner]

yeild depends alot on the strain and the grower.. a strain may have more then 1 varible to consider... just going to a bigger pot and the same length of grow time may or may not produce greater results.... it really depends on the plant size including roots....

think of a plant like a gold fish in a bowl....... putting a goldfish from a smaller to a bigger bowl and increasing the food will cause the fish to grow..... but once the goldfish gets to a certain size (dependent on genes) it will not grow anymore no matter how big of a bowl u put it in.. the same holds true with plants......

 

[Grat3fulh3ad]

It would be a very interesting experiment to carry out...
To maximize the volume of the container, the grow would need to be timed so that the plants are rootbound at harvest...
Assuming this, then the larger the container would require a longer veg time, but not twice the time, i think, because the larger the plant gets, the faster it will grow...
There will be some ratio of 'root mass : flower mass' that should be fairly constant, all other things remaining equal...
The 4.6 bucket imho would not yeild twice as much 'herb/time period', but would give some increase...

 

[Maj.PotHead]

a fairly good rule of thumb to messure by is

1 oz fruit per gal soil on a dialed in grow setup

you pretty much allready mentioned everything else

 

[Guest]

a fairly good rule of thumb to messure by is

1 oz fruit per gal soil on a dialed in grow setup

you pretty much allready mentioned everything else

Dang. I was at about 1/2 that my first run.

Heres hoping for better.

Same soil, longer veg, same nutes, same lights, same genetics

 

[Grat3fulh3ad]

a fairly good rule of thumb to messure by is

1 oz fruit per gal soil on a dialed in grow setup

you pretty much allready mentioned everything else

That is also strain dependent...
I've some plants that yield well below 1 oz/gal, and some that yeild a bit more....

 

[JJScorpio]

I have flowered in three and five gallon containers in the same grow with the same strain and noticed about 1/4 to 1/5 more from the 5 gallon ones. There were 5 of each and I expected the yield in the smaller ones to be much less then it was.

 

[Guest]

Y'all are getting 7-8oz per cubic foot of soil???? That's like 2-3lbs in a 2'd X 3'w cab

Using a 400w that's 2-3g/watt
Using a 600w that's 1.5-2.25g/watt

 

[Guest]

Well? 1gal=1oz???

 

[Bermyboy]

Y'all are getting 7-8oz per cubic foot of soil???? That's like 2-3lbs in a 2'd X 3'w cab

Using a 400w that's 2-3g/watt
Using a 600w that's 1.5-2.25g/watt

Your using bad math and wrong assumptions.

 

[GMT]

The equation would need to calculate the length of grow, the volume of soil used, the wats used during the grow, and then the yield. But being soil, you then have to make allowances for nutes etc. But basically, I would have thought that it would be a curved graph if plotted out, with an optimum veg length and container size. However most of us just try to fit things into the system we can run most easily. So to me that means working out the biggest plant I can accomodate, and then working out the veg time needed for that. So long as the plants dont get rootbound too early, the container size is optimal for me. But given that bigger plants have more branches to bud, I would have thought that so long as you can house and light em, growing them as big as possible for that strain would give the best return on time/materials taken.

 

[Alex-F]

The equation would need to calculate the length of grow, the volume of soil used, the wats used during the grow, and then the yield. But being soil, you then have to make allowances for nutes etc. But basically, I would have thought that it would be a curved graph if plotted out, with an optimum veg length and container size. However most of us just try to fit things into the system we can run most easily. So to me that means working out the biggest plant I can accomodate, and then working out the veg time needed for that. So long as the plants dont get rootbound too early, the container size is optimal for me. But given that bigger plants have more branches to bud, I would have thought that so long as you can house and light em, growing them as big as possible for that strain would give the best return on time/materials taken.

Not much one can add to that


It really pays to experiment with different pot & plant sizes. Basically just go with what feels best for your growing space & environment :wink:

Well and for me it's important that I have to do as little as possible as I'm lazy

 

[Guest]

I have an 8 by 8 flower room and have flowered in 1 2 and 3 gallon pots.I definately have best results overall flowering clones in 2 gal. pots,the 3 gal containers take up a lot more space and the 1 gal containers dont yield good enough.Actual 2 gal black plastic garden pots are not easy to find like 1 and 3 gallon,but my hydro joint fionally got some real ones in.I was using the wal-mart plastic 88 cent 8 inch pots until I found these

 

[GMT]

I reccon, watts per day totaled up, divided by the litres of soil used, divided by the number of days taken in total, multiplied by yield in ounces should provide a fair formula, what do you think? For example, 30 watts of flouros for 40 days, and 60 of 400w, in 12 litres of soil producing 4.5 ounces of smoke would be :
(30*40)+(60*400)/12/100*4.5 = 94.5 . If anyone put up their actual results, it would be interesting to see if the results average around the 100 mark as that would be a nice results measure.

 

[Closet Funk]

Plant size is a factor too. If the plant is bigger then it's going to need a bigger root system. I think you could yield an oz or more easy in a 1 gallon container. Grow them in 1/2 gallon containers during veg, and keep them trimmed or LST. Smaller plants will not grow such a big root system so fast. Transplant them into 1 gallon pots and grow them for another week in veg. Flip them to flower a week later, by the time the stretch is over the pot should be filled. The plant will put out what it can with the root system it is allowed.

Same rule goes for any size pot your growing in.

 

[Guest]

1oz per gallon of soil???man that seems like a awful lot of soil,ialways thought that up to 3oz from a 2 litre pot was the norm,think al stick with hydro

 

[Guest]

Bigger containers usually mean more root mass resulting in more bud,but not if its done incorrectly.If you planted you seed or new clone directly into a 3 gallon pot,the yield would not be as big as if you planted in a 4 inch pot,let the rootball fill the container,then transplant to 1 gallon finishing up in the 3 gallon pot.3 gallons of soil is 3 gallons of soil,but if your not utilizing it to its full potential by transplanting,3 gallons of soil can easily be the same as 1 gallon.

 

[Guest]

Nah mate,bigger lights means bigger root mass,bigger pots means airier bud,at least in hydro it does,and the soil grows(some)ive seen.

 

[Guest]

Bigger lite means bigger root mass?Dont confuse the subject man thats goofy we're not talking about lites.You dont think a bigger conatiner means bigger buds in soil?You really should keep that to yourself then lol