First Grow journal - 320W - 3X3 - Organic

[Hyakutak]

Messing around w/ one of my northern light:

[unkle_psycho]

Ok, if I got it the wrong way around, that would mean 660nm then? 660 and 730 are the frequencies that handle pfr/pf rates, so they 'fight' each other?

So if I'm using 90cri, does that mean I would need to add even more 660nm to compensate for the far red, compared to 80cri? Or would it be more complicated since the levels of 660 would also vary between 80/90cri?

660 and 730nm are the most effective radiations on phytochromes and are acting as opposites yes.
the 90CRI warm white usually got lower Pfr/Pr ratio than 80CRI ones, according to my calculations at least. So in order to delay flowering you could add more 660nm deep red.
But be carefull because this kind of white already got a lot of red, that means the High irradiance responses are well triggered already. An excess could lead to enhanced photoprotection and result in a poor photosynthetic efficiency.
The more your light density is high, the more you got to be carefull.

Perhaps if I were to play around with 660 in flower, I should also keep both channels on (2700 and 5000) and run at 3850k with added red... You were doing some pretty awesome stuff there by being able to combine the frequencies in a single graph.

[majorana]

Messing around w/ one of my northern light:

I love that side-light ring!

[unkle_psycho]

How's she responding to the side lighting?

[Hyakutak]

Hard to tell because I switched from 3500k to 3000k and transplanted it from 7l to 30l pot.

But so far so good. Need to check the PPFD.

[nuwanda]

Hello, I'm not a led expert but a good grower

The plants need someone N and someone Mg search on google and see who need what u can fix with boggle nutrients and epson salt.

If u have 40° u rease the humidiy more than 80% and use an air extractor and a fan.

What led stripes are u using? is your first time whit this led?

[unkle_psycho]

Hard to tell because I switched from 3500k to 3000k and transplanted it from 7l to 30l pot.

But so far so good. Need to check the PPFD.

So nothing noteworthy on branching or something?

It might be hard to measure ppfd's when light is coming from many directions. I saw people say just moving the sensor a little changed the numbers.

[Hyakutak]

For now, just a very happy fast-growing plant! Will do some LST but I don't have any free time these days...

[bvolt]

Hard to tell because I switched from 3500k to 3000k and transplanted it from 7l to 30l pot.

But so far so good. Need to check the PPFD.

So nothing noteworthy on branching or something?

It might be hard to measure ppfd's when light is coming from many directions. I saw people say just moving the sensor a little changed the numbers.

That’s normal. If a rest my meter on the floor (leaving it stationary), the number of photons reaching the sensor jumps between a narrow range. In a vacuum it might be constant - but even dust particle refract light.

[unkle_psycho]

Still no noticeable difference in branching?