Epic 4x4 Flowering Smackdown : 96 Elites vs 288s

led1k

led1k

Well-Known Member
Or_Gro said:
The one with the spectrum graphics above is this:

https://www.sekonic.com/united-states/products/c-7000/overview.aspx

Very $$$$, specs at link...my only complaint is that it doesn’t cover UVC->UVA wavelengths.

For intensity (ppfd), i generally use this:
https://www.apogeeinstruments.com/mq-500-full-spectrum-quantum-meter/

A less expensive tool for intensity is a lux meter, depending on brand/model...the mfg co should be able to provide the lux to ppfd conversion factor for lights to convert lux to ppfd. Here is a common one:

View attachment 4292137
Click to expand...
Thank you :clap: Ordered the lux meter. Looking for the conversion factor for Bridgelux EB Gen 2's... any hints?
 
Or_Gro

Or_Gro

Well-Known Member
I’m a true believer in defol.

Under optimal conditions, up to the end of stretch, a healthy plant will produce whatever leaves it needs.

The two primary reasons i defol are: to prevent the plant from using its energy to support an undesired part of the plant, and to remove a part of the plant that is blocking light or airflow.

When a leaf is removed, energy is redirected to what is left on the plant, with priority to the growing tip, supported by the same roots mass as before defol...

Further discussion about defol can be found at the growweedeasy link above.

I always tell novice defoliators that if you don't feel defol remorse after defol’ing, then you haven’t removed enuff leaves.

This morning i took a shipload of leaves, but didn’t feel bad...

So, i went at it again...

Before defol:

6x96
C0083F67-D815-4E4B-8ADD-D86FA304EA44.jpeg

8x288
5C2611CE-FCE8-47DA-8B13-730F0E376C1A.jpeg


After defol:

6x96
BD8261A1-70C8-4249-B275-506467505B91.jpeg

8x288
BE715026-5EB7-479E-AF58-03DA6F82D6EF.jpeg

Lol...still not feelin it!
 
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Or_Gro

Or_Gro

Well-Known Member
Or_Gro said:
I’m a true believer in defol.

Under optimal conditions, up to the end of stretch, a healthy plant will produce whatever leaves it needs.

The two primary reasons i defol are: to prevent the plant from using its energy to support an undesired part of the plant, and to remove a part of the plant that is blocking light or airflow.

Further discussion can be found in the growweedeasy link above.

I always tell novice defoliators that if you don't feel defol remorse after defol’ing, then they haven’t removed enuff leaves.

This morning i took a shipload of leaves, but didn’t feel bad...

So, i went at it again...

Before defol:

6x96
View attachment 4294807

8x288
View attachment 4294808


After defol:

6x96
View attachment 4294812

8x288
View attachment 4294813

Lol...still not feelin it!
Click to expand...
CO2 online, runnin 800ppm til pistil balls...all controlled variables in range...

finally....

If i don’t f it up, should be a helluva ride...
 
led1k

led1k

Well-Known Member
Or_Gro said:
They look acclimated, dontcha think?

6x96:
View attachment 4294283

8x288:
View attachment 4294284

Light intensity is in range: ~ 700ppfd for 18hrs/day, 45.4 dli; going to ~1050ppfd for 12 hrs/day, 45.4 dli.

https://www.extension.purdue.edu/extmedia/ho/ho-238-w.pdf

Vpd is in range: Temps 76-78F/24-26C, 55-60% RH

http://www.just4growers.com/media/23631/vpd_2degree.gif

DWC in range and stable: 65-68F, 6.1pH, ec 1.2 ramping to 1.5 as plants tolerate, DO still to be measured.

https://www.growbarato.net/blog/en/water-temperature-cannabis/

https://www.professionalmarijuanagrower.com/articles/january-february-2018/marijuana-ph-water/

http://www.just4growers.com/stream/hydroponic-growing-techniques/airing-out-the-truth-on-dissolved-oxygen-in-hydroponics.aspx

CO2 is here, and will be hooked up tomorrow; 800ppm ramping to 1500ppm.

https://www.maximumyield.com/mastering-co2-ideal-co2-levels-for-growing-marijuana/2/4073

https://www.lumigrow.com/optimize-cannabis-grow-for-led-temperature-considerations/

Tomorrow will be 12 hours of lightson....

Click to expand...
Fantastic info Or_Gro! Thank you for all the links! Stashed away for sure.
 
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