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How much light - PPFD - without CO2?

CreatureCreatorstarted grow question 4y ago

How high in power should I go with my lights without CO2 enrichment? I can comfortably provide 1200 PPFD to the canopy, but I'm holding it down near 900 because I'm not sure the extra power used would yield an increase in, um, yield.

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CRiSPrGrowanswered grow question 4y ago

always crank out the light if you can ride it out. thing is wierdness starts happening for example you need a lot more calcium and magnesium. the way you're feeding right now, you would have to change quite a lot of the "hands off approach" like you might need to start spraying the leafs with cal mag, monitor it more closely etc. totally worth it especially at the begning and middle of flower, just start turning it down quite a lot towards the chop, get that taste in there. Hope this helps ! 🚀

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Goodvibsanswered grow question 4y ago

Hi there. I’ve been uesing a ppfd app for the first time on my grow I’m at beginning of week 9 And everything I’ve read is that without co2 not worth pushing past 800 to 900 as the extra yeld is low compared to price of electric. Your plants look epic so keep doing what your doing. Happy days 🤙

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Ezzjaybruhanswered grow question 4y ago

1000-1200 umols/m2/sec is maxing out without CO2 for sure.. mid flower I’d personally crank to about 1000 if I were you then tone it down maybe10-20% last week or two if ya wanna save power.. you’d probably be fine at 900 tho, that’s just my personal preference

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