Or_Gro and the epic smackdown

[Marine2143]

Aloha & with your large EC and pH fluctuations have you considered using a larger containers? We found that 100+ liters was far better than 10 or 20 liters.

[IbnVapin]

Day 7: Sista’s got some major attention this morn.

Not happy with speed of growth, nothin bad, just seems a little slow...

Bumped exhaust fan trigger from 78F to 83F, with corresponding increase in humidifier settings to hold rh% constant...hoping to improve metabolic rate.

Also, compared pH on my different bluelab guardians, and although they are all calibrated correctly, they had as much as 0.5 pH diffs in same bucket...replaced all the probes with new ones, recalibrated them all to read same in same bucket....

Upped ec in all buckets from 0.4 to 0.6...glad to see mama slurpin the nutes, good yield sign for the sistas...

Will wait to see effects before flipping on uvb.

Expectin to do 2nd of 3 toppings, by mid-week.

Prawns:
F16B0781-3B22-4B89-96D2-D0A7AF2C25B3.jpeg


288s:
E196288D-A233-432C-8806-8E9744EECE67.jpeg


96s:
AAD2A27E-1339-40E2-B15A-5ABF292E71F3.jpeg


Time for a late wake-n-bake...

Looks really good man. Mine are coming along pretty well, working on nodes 5 & 6 now. First topping coming soon, probably in a few days.

Ate too much pizza last night, been paying for it lol. Ugh!!

[Or_Gro]

Day 7: Sista’s got some major attention this morn.

Not happy with speed of growth, nothin bad, just seems a little slow...

Bumped exhaust fan trigger from 78F to 83F, with corresponding increase in humidifier settings to hold rh% constant...hoping to improve metabolic rate.

Also, compared pH on my different bluelab guardians, and although they are all calibrated correctly, they had as much as 0.5 pH diffs in same bucket...replaced all the probes with new ones, recalibrated them all to read same in same bucket....

Upped ec in all buckets from 0.4 to 0.6...glad to see mama slurpin the nutes, good yield sign for the sistas...

Will wait to see effects before flipping on uvb.

Expectin to do 2nd of 3 toppings, by mid-week.

Prawns:
F16B0781-3B22-4B89-96D2-D0A7AF2C25B3.jpeg


288s:
E196288D-A233-432C-8806-8E9744EECE67.jpeg


96s:
AAD2A27E-1339-40E2-B15A-5ABF292E71F3.jpeg


Time for a late wake-n-bake...

Looks really good man. Mine are coming along pretty well, working on nodes 5 & 6 now. First topping coming soon, probably in a few days.

Ate too much pizza last night, been paying for it lol. Ugh!!

Thanks man!

Lookin forward to seein your plants produce some donkey Ds....

Go easy on the stomach...10 days to wapner...

[IbnVapin]

Day 7: Sista’s got some major attention this morn.

Not happy with speed of growth, nothin bad, just seems a little slow...

Bumped exhaust fan trigger from 78F to 83F, with corresponding increase in humidifier settings to hold rh% constant...hoping to improve metabolic rate.

Also, compared pH on my different bluelab guardians, and although they are all calibrated correctly, they had as much as 0.5 pH diffs in same bucket...replaced all the probes with new ones, recalibrated them all to read same in same bucket....

Upped ec in all buckets from 0.4 to 0.6...glad to see mama slurpin the nutes, good yield sign for the sistas...

Will wait to see effects before flipping on uvb.

Expectin to do 2nd of 3 toppings, by mid-week.

Prawns:
F16B0781-3B22-4B89-96D2-D0A7AF2C25B3.jpeg


288s:
E196288D-A233-432C-8806-8E9744EECE67.jpeg


96s:
AAD2A27E-1339-40E2-B15A-5ABF292E71F3.jpeg


Time for a late wake-n-bake...

Looks really good man. Mine are coming along pretty well, working on nodes 5 & 6 now. First topping coming soon, probably in a few days.

Ate too much pizza last night, been paying for it lol. Ugh!!

Thanks man!

Lookin forward to seein your plants produce some donkey Ds....

Go easy on the stomach...10 days to wapner...

What is wapner? Lol. Gonna try for an 8-branch mainline this time. 4 worked out well, wanna see what I can do with 8.

Been trying to go easy on the stomach. 2 pieces probably would have been fine. 5 was not, R.I.P. learned my lesson(again). Moderation with tasty stuff is hard

[Or_Gro]

Looks really good man. Mine are coming along pretty well, working on nodes 5 & 6 now. First topping coming soon, probably in a few days.

Ate too much pizza last night, been paying for it lol. Ugh!!

Thanks man!

Lookin forward to seein your plants produce some donkey Ds....

Go easy on the stomach...10 days to wapner...

What is wapner? Lol. Gonna try for an 8-branch mainline this time. 4 worked out well, wanna see what I can do with 8.

Been trying to go easy on the stomach. 2 pieces probably would have been fine. 5 was not, R.I.P. learned my lesson(again). Moderation with tasty stuff is hard

Yep...lol

Wapner=your specialist

I bet going to 8 yields more if you have room to spread them out.

[IbnVapin]

That's my hope, OG! 4 was nice though, won't lie. So far with 2 plants my record high is 10.96 oz. Should be able to yield more off these two. Half pound on one plant, basically 3 oz over that with 2. 13+ is my goal for this grow, on the two Alaskan Purples.

Not expecting a ton outta the autos but we'll see how they do! Definitely not going to mainline these lol!!!

[Or_Gro]

That's my hope, OG! 4 was nice though, won't lie. So far with 2 plants my record high is 10.96 oz. Should be able to yield more off these two. Half pound on one plant, basically 3 oz over that with 2. 13+ is my goal for this grow, on the two Alaskan Purples.

Not expecting a ton outta the autos but we'll see how they do! Definitely not going to mainline these lol!!!

@schmebulock might have some tips on the autos...

You should be able to do at least 1/2lb per plant on the photos, if they have somewhere near 2x2 space per plant and enuff ppfd.

[Randomblame]

Great 4th here, man; hope the same in alohaville....

I’m gonna be smellin that smell too, soon...

No secret on Mama’s lights:
4x96e, 12:12, at the moment; after stretch, i’ll add 3 or 4 rapidled far red pucks, running full lightson plus 1st 15mins lightsoff; no uv, no co2.

I also have a 65w incandescent light in there, testing an idea, on infra red, that @TEKNIK has.... @Randomblame suggested a pure ir bulb, which i’ve ordered.

She will fill that space easily and with the heat boost she will probably fill much more vertical space as well. More stretch, less branching, slightly bigger and brighter leaves are only a few effects. Depending how much/long its used it could also have a negative effect on yield(less branching) but to really cause SAS it has probably to run all day long. We'll see what happens..

You’ve prob seen this one, but jic:
https://www.blackdogled.com/lst

Doesn't give any lst targets, but does point the direction we should be aiming for...

Optimal leaf surface temp is 28-30°C or 82-85°F. Those testing show how the far- and infra-red radiation heats up the leave surfaces up to 3° over ambient temps. With white LED's its 1° less and with blurple up to 2°C less than ambient.


If the goal is to heat up the leaf surfaces comparable to HPS/CMH it will cost you a lot of energy and you get bad g/w results.
You would need to reduce ambient temps to 25-27°C to get the 28-30°C on the leaves, you also need a lower humidity. Literally you would need the conditions used with HPS with all the bad effects. More energy to create that light, more energy to control the enviroment, actually it would be a step backwards if you keep such conditions the whole day.

It's maybe different when you mimic mother nature and start low with a coolwhite spectrum with lots of blue and green, use highest intensity of that spectrum + the extra heat for a few hours around noon and switch to a more warm white spectrum only in the afternoon. Its not easy to keep the VPD in check with such switching conditions but if the DLI is almost the same it would be an interesting test.

This is a pretty old chart you've probably seen already. It shows highest photosyntetic efficiency occurs with 30°C.

[Or_Gro]

She will fill that space easily and with the heat boost she will probably fill much more vertical space as well. More stretch, less branching, slightly bigger and brighter leaves are only a few effects. Depending how much/long its used it could also have a negative effect on yield(less branching) but to really cause SAS it has probably to run all day long. We'll see what happens..

You’ve prob seen this one, but jic:
https://www.blackdogled.com/lst

Doesn't give any lst targets, but does point the direction we should be aiming for...

Optimal leaf surface temp is 28-30°C or 82-85°F. Those testing show how the far- and infra-red radiation heats up the leave surfaces up to 3° over ambient temps. With white LED's its 1° less and with blurple up to 2°C less than ambient.


If the goal is to heat up the leaf surfaces comparable to HPS/CMH it will cost you a lot of energy and you get bad g/w results.
You would need to reduce ambient temps to 25-27°C to get the 28-30°C on the leaves, you also need a lower humidity. Literally you would need the conditions used with HPS with all the bad effects. More energy to create that light, more energy to control the enviroment, actually it would be a step backwards if you keep such conditions the whole day.

It's maybe different when you mimic mother nature and start low with a coolwhite spectrum with lots of blue and green, use highest intensity of that spectrum + the extra heat for a few hours around noon and switch to a more warm white spectrum only in the afternoon. Its not easy to keep the VPD in check with such switching conditions but if the DLI is almost the same it would be an interesting test.

This is a pretty old chart you've probably seen already. It shows highest photosyntetic efficiency occurs with 30°C.
Licht-Info's31.jpg

So, is chart w or w/o co2?

Lst or air temp?

30c=86F

As far as energy expense, the way i read chart, assuming temps = lst, peak optimal lst is close to 86F....i certainly would be able to reduce a/c...perhaps without adding ir light & no change to existing lights...

Anyway, i’ve already bumped air temp setting to 83F in the clone tents; and have incandescent/ir light in mama tent....i’ll start watching leaf temps w this:

[TEKNIK]

From my limited understanding of co2 intake and maximum micromouls it is in direct relation to the spectrum.
Plants that receive sunlight in a green house can take more micromouls before co2 is required.
Under artificial lights I am pretty sure 1000 micromouls is maximum before co2 is required to go further.
There is probably a high chance that artificial lights have a more focused beneficial spectrum so although sunlight is able to hit the plants with more it isn't doing anything that is beneficial, the plants may just regulate themselves differently under the broader spectrum.
More research is required but I pretty certain there is a way to increase productivity without co2 and just with a different spectrum.