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Day 67...welcome to my nightmare. Last time i grew autos was 6 years ago under burple lights. Average height was around 2-21/2 feet. I'm at a loss...three of the four plants are still stretching(chem dog is the only normal plant), cant even see her in the pics cause shes way down in there. The unknown seed is in the back and has now gotten taller than strawberry pie(who is a biotch by the way...theres no pleasing her) I've gradually moved her pH up but still no real change. Probably doesnt help being 8 inches from the lights but the unknown plant is dealing with it. The outdoor plants got ravaged by last weeks heat wave and 40 mph winds for two days. No pics of them just yet. On a lighter side my outside pest control army hatched!!! Hopefully i can get some to hang around.6 PhotosShappel S3000 3.5x6x6' ice hut
Fusion Board LED Panel 480w
6" Fusion Breath, Fan/Filter
Canna Coco/perlite
General Hydroponics Flora Series
Cal/Mag.
Auto plants Strawberry Pie Auto(fast bud) Night Queen Auto(dutch passion) Chem Dog Auto(ethos) Unknown mix Auto(butterbean seeds)
Photo plants Blue Cheese(butterbean seeds) Green Crack(Canuk seeds)
Purple Gelatto(Canuk seeds)
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This is a better view. The light is 275 watt and it produces 630 umol/s as i hope I've calculated correctly.
Can someone estimate my yield? canopy is exactly 0.50 m2. Day 39 of grow from seed and 7 from 12-12 cycle.
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Cool but How did you get this number?
I'm not much experienced grower but this is how i theoretically calculate yield:
630×12×3,600÷1,000,000×65×0.25×0.6÷28.3=9.4 oz
630: PPF of the light in umol/s
12: number of hours that plant receive light in a day
3600: number of seconds per hour
1000000: number of umol/mol
630×12×3,600÷1,000,000: is DLI in mol/day
65: number of flowering days
0.25: quantum yield in gram per moles of light received by plants when there is no other limiting factor. It's generally between 0.22 and 0.33 depending on light level. The more the light the less the quantum yield.
0.6: fraction of light received by plants. I will cover all footprint of light in next grow to be able to get 1 instead of 0.6. On that case quantum yield will increases from 0.25 to 0.33 gram/mol
28.3: number of grams per oz
What if i cover all footprint of light?
Can i expect 630×12×3,600÷1,000,000×65×0.33×1÷28.3=20.6 oz in your point of view? It means 2.1 gram per watt of electricity. Is it possible you think?Last edited by ZiroOne; Today, 05:22 PM.
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