Interesting study on PPFD, DLI , C02, and what we know

Stumbled upon this article , which I found very interesting and am still reading it and trying to understand it. From what I gather and what we know and follow may not be exactly correct. Supplemental C02 over 1000 ppfd may not be needed. Apparently it’s the leaf temps that exceed 86° Fahrenheit would require supplemental C02. I think the reason why 1000ppfd was the staple is because HPS were burning plants and it wasn’t because of the ppfd it was the heat from them. :man_shrugging:
I may be wrong in what I’m reading and I’m really high right now😂 and am enthralled in this study.
Some of you folks may be interested. Maybe not lol. I know @Nicky has his DLI thread based on pushing 60 DLI and comparing grows with less. He may be on to something that could possibly coincide with this study.
Who knows. All of you may have already read it :joy:

@dbrn32 @Nicky @MeEasy @Flipdawg08 @Low @Tylersays @PurpNGold74 @Myfriendis410

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Thx @The_Chef definitely gonna be a interesting read. However, after a quick scan I realized - I’m either way to high right now - or not nearly high enough!! LOL!

You know me man - I read it was all about the lights and took that shit to heart! :heart: :laughing: :joy: :rofl:

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I have light burned plants before but they have to be about 4 inches from the light, but the veg growth from center tent of 40-55 dli vs the edges of 35-45 is very noticable,( almost doubled)

:joy::joy::rofl: yeah I had to take a break bro.

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It can be a deep, deep dive.

:diving_mask:

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It’s deep man. I was good for a while. Went outside and cracked 3 or 4 hits and yeah. Had to take a break and it’s late af :rofl:

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These guys are light makers mainly but they have a ton of articles and info on all kinds of lighting things.

Actually I think it’s the same company I posted over in @Flipdawg08 s journal. but different article…I think! LOL!

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Now I have more to read :rofl::rofl::rofl:

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Supposedly they pushed plants up to 2000ppfd and found that it wasn’t the intensity. It didn’t affect the saturation of light. It was when they went beyond the surface temps of 86° on the leaves that they had to supplement C02. I think :rofl:
I know @dbrn32 will or has read it and will dumb it down for someone like me.

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YouTube videos with explanations for PPFD, PAR and DLI.



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@The_Chef @Tylersays I’m not even going to try reading or getting into that right now lmao way too twisted haha will def come back to this lol

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We’ve all read that. Bugbee is the man! This new study was just released a few weeks ago.

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Yeah my head was hurting the further I went :joy:
I’ll probably look at it again after work today lol

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Seems like a reasonable study. I would have liked more detailed explanation on why there was so much variance in weight of their sample plants.

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Good read there.

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