Cannabis Daily Light Integral
- Thread starter cdgmoney250
- Start date
ttystikk
Well-Known Member
Hey there buddy! I was hoping I'd see you in this thread!
Have you run a 6 on, 18 off cycle? If so, what were your results?
torontoke
Well-Known Member
I started my experiment phase with 6/18 using a 400 mh imo it wasn’t enough light for such a short period of time and bud formation was severely less.
I think with a better spectrum and the new fancy leds make it possible but I wouldn’t try less then 8 again myself.
I appreciate watching people try things tho and will keep an eye on how these guys find it.
InTheValley
Well-Known Member
Im definitly going to try all this. I got my DYI CO2 box and mix read y to go for tonight.
Ill take pics too, but how long it will go, IDK, because I dont know sex, and its under 12/14 right now, and its topped and only 11 days old.
Ill take pics too, but how long it will go, IDK, because I dont know sex, and its under 12/14 right now, and its topped and only 11 days old.
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torontoke
Well-Known Member
Unfortunately I think you will be sadly let down with this approach to glr.
I tried it again over a two year period and found that certain genetics would start to flower and it was a giant pita for a few hours of savings.
Using glr and then a reduced flower cycle will shave weeks off the total grow time but you would lose the growth equivalent so it’s a sideways step at best.
InTheValley
Well-Known Member
if your doing several perpetuals, it could be cool.
PSUAGRO.
Well-Known Member
We shouldn't be monocropping, but old habits are hard to break.I agreed with you - it should be O2 and I added Nitrogen
Clover and micros work. They are present in natural soil so adding them back into other mediums was logical to me. Look up azospirillum and azotobacter. They help keep everything in check and provide a good ph buffer by thriving in alkaline environments which would normally lock out nitrogen. Plus they have other goodies.
nachooo
Well-Known Member
Maybe using a 12 on / 5 off/ 2on / 5 off instead of the classical 12 on/ 5.5 off/ 1 on/ 5.5 off would work in more strains...
Slinging PAR
Well-Known Member
Or 24/0 with the right DLI
nfhiggs
Well-Known Member
Plants do not absorb CO2 at the roots.
nfhiggs
Well-Known Member
That might be true for C4 class plants, but not a C3. Cannabis is a C3 plant.
Slinging PAR
Well-Known Member
Plus it would displace any O2, N2 down in the root zone potentially causing problems.
InTheValley
Well-Known Member
ok, didnt know that.
well, we'll see anyways, its already sleeping with CO2 being injected into the root system as we speak.
at lights on, its will be injected with O2,
*shruggs, just experiment, no big loss.
nfhiggs
Well-Known Member
I would think it would encourage anaerobic bacteria (pythium for example) while being detrimental to the beneficial aerobic bacteria that we want in the root zone
Rahz
Well-Known Member
What kind of yields are you getting using those techniques?
Slinging PAR
Well-Known Member
Or azosbacterin! Slime them! But pythium is everywhere and only takes hold on weakened plants.
On pages 2,3 of this thread. My last run with a sativa netted 1300-1600g/m2 with all 4 chambers, 120 days flower which is what it normally takes to finish using 12/12.
Rahz
Well-Known Member
Apologies for not catching that. Yield results are on page 4, averaging 1100 g/m2 for the hybrids. Very nice. You are utilizing vertical growing methods for those chambers?
Slinging PAR
Well-Known Member
Have to. Everything is tied down to the outer walls with the canopy forming a bowl shape mid to late flowering. The lights are in the middle, and contrary to the common practice of spreading them out, the 12 cobs are in a 3x4 matrix about 1' between each other. That was the best way to distribute the light equally to the most leaf area. Air flow is being cycled between all 4 chambers in a semi closed loop using fan/filter combos and ducting. Total wattage is just under 650w at any given time, up to 400 for light and 250 for all the fans.
It was a lot of work, I would only recommend it for hobbyists with a lot of patience. Light was adjusted daily measured with a hf par meter. With 6 hour light periods you have to schedule around the clock. 6 months of that will change your motivation and if not, trimming it will
vintagedvd
Active Member
So I'll resurrect this topic because I feel it deserve it.
I found very interesting the drooping of the leaves. I'm not sure when I'll test the watering drooping because I never let it really dry more than 95%, but the DLI drooping (Daily Light Integral) makes me mad that I didn't found it myself, as smart as I am and all
In my defense, although I grow for many years, I only grow 2 per year, one at a time because of space and temperature limitations.
BTW, I have a 90X90cm grow space (about 3X3 feet), and grow SCROG.
So I have a new SSH growing and I felt it grows a little too slow for my liking. I have 4X50W COBs and I always start with one at 40cm, than every 10 days I light one more. I started searching yesterday on the forum if the light is the culprit and the plant wants more, or she doesn't like topping, and I found this.
I immediately powered another COB and at "the end of the day" the leaves didn't droop at all, so I guess it wants more. I'll power a 3rd one in a few hours at the "start of the day" and let you know tomorrow how that goes.
It's a revolutionary theorem if that's the case, including having a shorter day in flower, if you have enough MOLs and a good environment. But even for very small growers like me, this is great.
Thanks for sharing!
I found very interesting the drooping of the leaves. I'm not sure when I'll test the watering drooping because I never let it really dry more than 95%, but the DLI drooping (Daily Light Integral) makes me mad that I didn't found it myself, as smart as I am and all
In my defense, although I grow for many years, I only grow 2 per year, one at a time because of space and temperature limitations.
BTW, I have a 90X90cm grow space (about 3X3 feet), and grow SCROG.
So I have a new SSH growing and I felt it grows a little too slow for my liking. I have 4X50W COBs and I always start with one at 40cm, than every 10 days I light one more. I started searching yesterday on the forum if the light is the culprit and the plant wants more, or she doesn't like topping, and I found this.
I immediately powered another COB and at "the end of the day" the leaves didn't droop at all, so I guess it wants more. I'll power a 3rd one in a few hours at the "start of the day" and let you know tomorrow how that goes.
It's a revolutionary theorem if that's the case, including having a shorter day in flower, if you have enough MOLs and a good environment. But even for very small growers like me, this is great.
Thanks for sharing!
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