Moe.Red
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Somewhere in these tests we should add in sulphur. Sulphur in mid to late flower increases TCH and terpene production. I've been using epsom salts and garden gypsum for years, both contain sulphur, and it really does make a difference.
Can you dim the main lights? If so, you can control the ratio of FR:R by reducing R.This is where I landed:
View attachment 1094400
LED 6:00A - 11:59P
Far Red 6:30A - 12:20A
UVA 10:00A - 4:00P
Plants:
Left Rear / Center Rear / Right Rear
Left Front / Center Front / Right Front
Jack the Ripper / Jack the Ripper / Bubba Kush
Bubba Kush / Afghan / Durban Poison
View attachment 1094406
System Setpoints:
View attachment 1094407
RH ~ Dehumid turns on at 60%, Humidifier turns on at 50%
CO2 = 1250PPM
Nutes = 260PPM (see notes)
PH = 5.7 - 5.8
Res Temp = climbing to 72*F
I need to go do some reading on PPFD settings with Far Red. Tomorrow we will play with light location and intensity. That's the Optics, Far Red, and UVA.
This is how I control the Far Red and UVA:
View attachment 1094408
I can actually set the address to whatever I want and turn on and off with sunrise / sunset and can include an offset. That would be pretty neat - have the lights all controlled by the conditions of some zip code in Africa.
What a friggin nerd I am.
So looks like yes. But not automated. Right?There are analog dials for Bloom and Veg, essentially blending 2 different spectrum COBs.
There is a Bloom Enhancer that fills out the spectrum but realistically not much PPFD.
View attachment 1094425
So looks like yes. But not automated. Right?
My curiosity around this is mostly time of day/year signalling so probably not too relevant anyway.
Ok I read it. I’m not smart enough to figure out how to tune the lighting system from that.Can you measure just red light vs far red light? If so, i would try to mimic the ratio found where the plant is from.....hang on there is a paper for this.
Patterns in the spectral composition of sunlight and biologically meaningful spectral photon ratios as affected by atmospheric factors
Plants rely on spectral cues present in their surroundings, generated by the constantly changing light environment, to guide their growth and reproduc…www.sciencedirect.com
Ok I read it. I’m not smart enough to figure out how to tune the lighting system from that.
I’ll get some ppfd measurements tomorrow while wearing the camera and we can decide based on that. For now they are set as specified previously.
First, there are 6 active tents. They are
1.) Germination / Cloning
2.) Pre-veg (2x4 that currently is not in use)
3.) Veg Tent 4x8
4.) Flower Tent #1 - 4x8 with HID lighting
5.) Flower Tent #2 - 4x8 with LED lighting
6.) Mom (or dad) tent - 4x4
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