A Mar-sian Darkness Falls In Otterville

Hi!
If you see this go to the NORML website and get to writing your lawmakers if you live in the states. They insinuate that on Wednesday a vote somewhere will take place to remove cannabis from the federal list it's on as a bad drug. NORML had a template letter to use if you'd like, or not. It might be time! Let's do this!
 
stoneotter said:
Hi!
If you see this go to the NORML website and get to writing your lawmakers if you live in the states. They insinuate that on Wednesday a vote somewhere will take place to remove cannabis from the federal list it's on as a bad drug. NORML had a template letter to use if you'd like, or not. It might be time! Let's do this!
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Do it folks...its working just fine here in Canada. Mexico is next. It's been a needless unfair law, you should be appalled they are currently using CBD as medicine AND ITS STILL SCHEDULE 1!!
 
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stoneotter said:
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Hi @SmokeSara, am I reading this Wrong? It doesn't make sense. In the bloom column at 12 inches off the canopy it says the Coverage would be 4 feet x 4 feet in bloom. How is the light high enough to cover 4 feet in Bloom? Maybe I'm not understanding the function of it. Can you explain the chart please?
 
Also, please ask her what size area “center” refers to (e.g. 6”x6”, 12”x12”, etc). A plot showing actual PPFD measurements over the total stated coverage area would be most helpful.

For example, this plot for the HLG100 (in red) makes it easier to see that colas outside of the center 12” square area are getting something between a low of 240 and a high of 380, as opposed to the center value of 420.

907B5B46-53FE-4CB3-AA32-D96171A260F5.png
 
If Sara says that the PPFD of 618 (at a 24” height - good for early veg) is the average for a 2’x2’ area, and all of your plants are within that area, then 18 hours would give them a DLI of about 40. Increasing to 20 hours would be only slightly more (a DLI of about 44).

Hard to see how that would adversely affect them if 8 hours in the sun (say a modestly average PPFD of 1800) would be a DLI of about 52.
 
27 is about the low end for veg, but that doesn't mean you can't grow great plants!
dli-for-cannabis-jpg.1898664
 
stoneotter said:
Hi @SmokeSara, am I reading this Wrong? It doesn't make sense. In the bloom column at 12 inches off the canopy it says the Coverage would be 4 feet x 4 feet in bloom. How is the light high enough to cover 4 feet in Bloom? Maybe I'm not understanding the function of it. Can you explain the chart please?
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Hi stoneotter, good question. The recommended coverage 4x4 is not at the lowest height we recommend, which is 12''. In fact, the light around 16~18'' at the side PPFD output can meet the standard flowering needs, lowering the lights to 12'' will help increase the center PPFD output, but will also decrease the corner ones, which will result in less coverage. But from our test, the new lights as is lighting group design, and designed for bigger coverage, the coverage won't be influenced too much from 18~12 like the one big powerful light does. :Namaste:
 
:hmmmm:
Okay, after thinking about this answer for a while, I understand that the claim is that, at a height of 12”, the light will provide sufficient PPFD for standard (I take it this means “not exceptional”) flowering for an area about 16-18” square.

edited, but I left the head-scratch because Shed found it amusing
 
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Thanks cr8! They smell even better.
 
FelipeBlu said:
:hmmmm:
Okay, after thinking about this answer for a while, I understand that the claim is that, at a height of 12”, the light will provide sufficient PPFD for standard (I take it this means “not exceptional”) flowering for an area about 16-18” square.

edited, but I left the head-scratch because Shed found it amusing
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I guess there's a lot for me to learn about light. The one I have in the 40in x 40in is rocking everywhere I can tell. I'm running it at less than 12 inches off the canopy. No light meter involved and ignorance galore. I have to get on Sheds drop to figure what this is about.
 
I’m not sure how valid this method is, but if one averages the measurements for the 24” square and the 42” square, one might estimate the average PPFD in the area between them. For example,

5823/16 = 364

For the average DLI in this area:

364 x 3600/1,000,000 = 1.31/hr

1.31 x 18 hrs = an avg DLI of 23
 
But otter is at less than 12" and the PPFD readings are for 18". So his DLI would be higher than 23 for an 18 hour veg timing. And I'm not sure where you got the 5823 number. As your math teacher might say, "show your work Felipe!"

Also, I still love the look of your cherry wood floors!
 
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