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So I went by the local Nursery and bought myself a Three Way Meter. It is made to provide the PH of the soil, the moisture level of the soil, and the lumens available.
This is a really great little tool! :thumbsup:
It cost me $11 and I probably over-paid?
Three Way Meter
Thanks! She should be able to triple in size in this 5 gallon. As soon as I am done babysitting in my flowering space I will consider starting to flower. I am going to take some clones too of course.Quote:
Originally Posted by rattlingdags
Here are some Larry updates.
OG Larry Full View
OG Larry Top Canopy
OG Larry Side Canopy
Edit:
I forgot to mention, I also got a couple of plant bases with wheels. You can see on the first image that the base holds my 5 gallon just fine. It sure makes it easier to move the plant around and work on it! $6 at Big Lots. :D
Still waiting for these sprouts to get out of the germination stage.
Two of them show their third set of leaves; waiting sucks! :mad:
I moved my 90w LED closer to the sprouts. It is now 8 inches above the canopy level. The intensity could still be stronger though. I kind of wish I had bought a 120 instead.
Sprouts 01
Sprouts 02
I am getting closer to decision time about Larry every day. I decided to count up his main branches today to see exactly how Large she is.
OG Larry - Marking Branches
As you can see I just used twist ties to mark all branch tips. The twist tie with two screws on it is the apex, not a branch. In addition to the apex there are 14 distinct main branches. All are large enough to become their own plant via cloning.
I am also trying to decide on a method for growing a mother and grafting on several varieties of bud as a Bonzai Mother. I have to decide if I want to use OG Larry as a mother host or grow a new mother with a better design.
Just as a heads up, the 90w UFO style panels using 1w diodes can typically be put about 3 inches from the plant canopy. Typical 2000+umol intensity happens around that level, and the plants will love it as long as you keep them cool.Quote:
Originally Posted by omnibuddy
Also, if you ever look into upgrading, there are true single-chip 3w diodes out there now with much higher efficiencies.
Check out those sexy pre-flowers... I didn't want to be rude so I took a picture; it'll last longer. :S2:
OG Larry - Sexy 01
OG Larry - Sexy 02
Thats a good idea. I messed with my light a bit more today and got it another two inches closer. At six inches from canopy I am now reading 800 to 1000 lumens depending on where I test on the canopy level.Quote:
Originally Posted by khyberkitsune
All of this light stuff gets pretty detailed. Does anyone know the answers to these types of questions?
Approximately how much more usuable light does 1000 lumens of LED have vs 1000 lumens of wide-spectrum HID?
Approximately how much more usuable light does 1000 lumens of LED have vs 1000 lumens of 6500k?
Is plant stretching affected by total lumens or by total usable lumens?
I wanted to try this technique out. Many people use it as a method of causing a branch or apex to split into two branches.
When I cut the leaves I cut about 1/3 of the leaves off. They were so small at the time it was hard to see. Now in the photo you can see the leaf that was cut when a baby. These are the two tops that resulted.
OG Larry FIM
You cannot measure an LED panel by lumens unless it is all white or all green. It's impossible. 1w 40% efficient red diode will show 30+ lumens whereas a 1w green diode at 40% efficiency will register 100+ lumens, assuming all other factors like emission angle and power consumption/conversion are equal. Lumens is weighted at green light, specifically 550-555nm. Trying to measure a panel loaded with red and blue diodes by the lumen is therefore improper, and makes no sense.Quote:
Originally Posted by omnibuddy
What you're looking for intensity-wise is photon flux density, and at the proper wavelength ranges to determine photosynthetic photon flux density.
PROTIP: ALMOST NO LED MANUFACTURER CAN PROVIDE YOU THAT PHOTON FLUX DENSITY MEASUREMENT. Most of them aren't even aware that a proper measurement for photosynthetic photon flux density even exists.
So if you don't see that measurement, you might not get the results you've been advertised/promised.
Is this because lumen measurements are based on human visual spectrum?Quote:
Originally Posted by khyberkitsune