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Subbing onto this one already from the first few posts. Lots of love for quest of "Happy weed", its always my favorite. The kind of weed that just feels like someone put the sun into your chest and expanded it until all you feel are smiles. Tambien un gusto ver un hilo bilingue :) Ill take...

I think its more to that story than just co2. Now wintertime our grow always has loads of co2 due to heatin the house thru wood fire. And we most def cant give 1800 without bleaching

What does pricing look like on those for large amount, like +4000? Only really if you have it at hand, i can look it up with a bit of time but if u have it lying around pls share

Sounds like a blast, pretty much exactly what im looking for. Me thinks ill make some clones for outdoor this summer, indoor is great and really the only way to do comercial where im at but personally i absolutely love me some outdoor for personal stash, high, taste and smell is just so different.

I dunno, try starting with 10% but still really hard to give generic answers: efficiency per watt is an issue. Also spread: its not the same adding 10% red to a m2 of 400w white by adding 40w bang in the middle as 40w spread over the whole cannopy. Refer to previous answer: let your plants...

The article quotes one study about intensity which kinda goes counter to what ive seen in our grow; over 1000ppfd has been hard to use even with spectrums similar to their R4. Not sure what to make of it and how generalizable it is. Yes, they saw 1 to 1 increase in yield above 1000ppfd. But...

Over 50w per squarefoot and only 5-600 ppfd as lowest measurement? What are you growing with? Whats your highest measurement? Open space or tent? Sounds low tbh for that wattage

Were growing out a couple of Novarine from Elite seeds in Spain, supposably bred for high thcv yield. Anyone tried these? Anyone with a smoke experience of a plant which has more thcv than thc?

Thank you so much, im actually the same so i really appreciate it. Edit: cant seem to get more than very basic info regarding the study or the organisation that made it: yields increase linear from 1000 to 1800ppfd, 1 percent more light 1 percent more bud. But no info on absolute values or...

Excellent; exactly the info i wanted: hosing it down while board is turned on. Im going to use silicon, easy peasy. "It puts the lotion... Oops, it grows the buds, or else it gets the hose again, isnt that right precious?" XD

I think youd have to experiment with that to work out how it works in your grow really. Hard to give exact instructions. But some basics: only adding blue to an already balanced spectrum tends to decrease yield and make shorter plants with smaller leaves: blue response. But you could...

One of the grows i follow on icmag did 1200ppfd during 12-12, no bleaching or anything and excellent yields, using 2700k 80 cri but had about 120w of incandescent added to heat the cannopy and for reds reds and far reds. The more light you run the more transpiration you need; not sure you can...

I think youre posing a false binary choice. If youre doing these boards completely custom then theres nothing stopping you from mixing a few Evo-h (in order to get that 437nm spike) and the using shit loads of 281b at very low power in order to get efficiency cheaply and getting the standard 450...

So post it :)

Use the 450 as a transpiration aid. If plants look saggy add some.

Theres a few benefits to diy: - for spaces with unusual dimensions. - being able to control what diodes are used; both as in assuring you get bonafide diodes rather than china quality as in being able to get a specific spectrum you like. - safety: ive seen some brands use dodgy connectors and...

We use uv straight thru flower. Works fine. Uv leds can be expensive depending on where you source them but arent really that much cost, got mine at 1$ per led on alibaba. Got no experience with flouros but from what ive seen in tests: near uv 400nm beats uvb fluoros. Also they usually need more...

Blue/green ratios is something we never really talk about, but also an important measure. By what mechanism would this determine SAS, please link cause i really find it interesting. Blue and green both have their own reactions in the plant. The effect of blue on morphology is shorter internodes...

I can only guess but i think the 46% number would come from: 0.022/0.015=1.46 The gla spectrum creates 46% more photons than whatever spectrum that 0.015 number comes from, per measured lux.