New Grower Danielsaaan’s 5th Grow - Strawberry Nuggets

[Calyx Frost]

52: Temp: 73, RH: 40, DLI: ~42.5. They ain’t looking the best. Hoping to get a harvest in the end. You think I should water only the rest of the way? Did I give too many nutes; even at half strength? I know my PH going in has been perfect each time. Definitely got me feeling frustrated!
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Dude those look good

 

[Danielsaaan]

Why are the VPD charts available online so different from one another? I expected them all to be around or about the same? Maybe I need a new chart? For example, the chart I’m using suggests 25-35% RH at 72F mid/late flower. Another one I’m seeing online suggests 50-60% RH at this temperature and stage. Odd!!

 

[Danielsaaan]

I’m thinking I should try bringing my RH up a bit? Then again, not sure which chart is correct…anyone with more experience that can chime in? Appreciate y’all!

 

[Talonxracer]

I’m thinking I should try bringing my RH up a bit? Then again, not sure which chart is correct…anyone with more experience that can chime in? Appreciate y’all!
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I would use the top chart, that is the one I use.

 

[Danielsaaan]

I would use the top chart, that is the one I use.

Thanks! To keep my RH that low, I’ll likely need to run my exhaust fan 24/7. Maybe I’ll try doing that…man, I’m all over the place! Just hoping to keep them alive at this point lol

 

[Lil Dab]

Why are the VPD charts available online so different from one another? I expected them all to be around or about the same? Maybe I need a new chart? For example, the chart I’m using suggests 25-35% RH at 72F mid/late flower. Another one I’m seeing online suggests 50-60% RH at this temperature and stage. Odd!!

Here’s another for you this is the original I used.. Also look a pulse

VPD Chart

Vapor pressure deficit (VPD) chart & calculator for horticulture in controlled environment. Cannabis, tomatoes, leafy greens, cucumber.

vpdchart.com

The Ultimate Vapor Pressure Deficit (VPD) Guide

"Why devote an entire guide to VPD?" you might ask. The answer is that the vapor pressure deficit (VPD) is extremely important for growing plants. VPD helps you identify the correct range of temperature and humidity to aim for in your grow space. With VPD you can achieve the best results while...

pulsegrow.com

I hear you the first chart I shared yesterday came from MOG who I wholeheartedly trust that is why I follow that one now

 

[Talonxracer]

Here’s another for you this is the original I used.. Also look a pulse

VPD Chart

Vapor pressure deficit (VPD) chart & calculator for horticulture in controlled environment. Cannabis, tomatoes, leafy greens, cucumber.

vpdchart.com

The Ultimate Vapor Pressure Deficit (VPD) Guide

"Why devote an entire guide to VPD?" you might ask. The answer is that the vapor pressure deficit (VPD) is extremely important for growing plants. VPD helps you identify the correct range of temperature and humidity to aim for in your grow space. With VPD you can achieve the best results while...

pulsegrow.com

I hear you the first chart I shared yesterday came from MOG who I wholeheartedly trust that is why I follow that one now

I really like the interactive chart you posted up, it takes into account leaf temp! Bookmarked that one! Thnx!

 

[PeaceLove&Buds]

I’ve never used a chart and I don’t know what vpd means but once they’re a couple weeks old I keep mine steady 50-55% the whole grow and it works great. Not saying you should, just informing that 10% higher shows no problems.

 

[Danielsaaan]

I like that interactive chart a lot as well. Bookmarked. Suggests 40-50% RH at my temps haha. Ima just shoot for that RH. Whatever happens happens at this point! Appreciate it, guys.

 

[Lil Dab]

I’ve never used a chart and I don’t know what vpd means but once they’re a couple weeks old I keep mine steady 50-55% the whole grow and it works great. Not saying you should, just informing that 10% higher shows no problems.

Vapor pressure deficit

I really like the interactive chart you posted up, it takes into account leaf temp! Bookmarked that one! Thnx!

I like that interactive chart a lot as well. Bookmarked. Suggests 40-50% RH at my temps haha. Ima just shoot for that RH. Whatever happens happens at this point! Appreciate it, guys.

Yeah I did too make it really easy to slide the sliders to see which way to need to adjust environment.. It just didn’t match the other and not many folks liked it in LS so I switch to MOG’s since it was popular.. Bottom line is along as you close to the perimeters you should be ok these is some wiggle room I just would just try to keep my rh above >45% <60%.. that way they still be transpiring plenty and still have low rh to prevent mold…

P.S. the multiple charts goes along with the multiple sensors more info to average out and narrow things down.. The biggest problem I found with growing cannabis and being online is trying to figure out all the contradicting theory’s… If you look hard enough you find a something that contradicts what you already know/found