Live Stoner Chat Live Stoner Chat - Jul-Sep '22

[Lil Dab]

Thhnks for the rep @Zeromitch I do both PC and phone

later stoners gotta go update some threads

 

[N/A-Greengo]

Jean-O's, Root Beer Float
&
Ethos, Purple Thai

 

[Fermented_Fruitz]

Also thanks for the reps!
@Jerseyphresh1 @Mañ'O'Green @Mossy @Zeromitch and another for @Mañ'O'Green


P.S. Down to 140 points @Suki813

 

[Delps8]

So as long as i stay at 1.3VPD all grow I'm good? i think i can manage that.

View attachment 1483404

A VPD of 1.3 would be, perhaps, early flower.

There are two pieces to the Pulse VPD puzzle - the stage of growth and the leaf surface temperature ("LST")

Recommended VPD's are 0.8 for seedling, 1.0 for veg, and 1.5 for flower. Some growers like to gradually raise VPD when flower starts, going from 1.2 to 1.5 so maybe that's where 1.3 is coming from.

LST is an important part of VPD because it drives the "deficit" part of VPD, that is the difference in vapor pressure within the leaf vs the vapor pressure outside the leaf. The vapor pressure outside the leaf is a function of the temperature and the humidity - if is really hot and dry, there will be a big deficit and lots of transpiration. LST is used for the "offset" - the difference between the leaves in the canopy and the ambient temperature in the tent//grow environment.

Grab an IR thermometer and sample the temperature of leaves in the canopy. If the ambient temp is 80 and the LST is 78, you've got a -2 offset. Click on the "Settings" icon ("Environment", "Spectrum", and "Settings") and scroll down until you see the place to enter the LST. Once you've entered that, hit "save" or "accept" and the Pulse will update the data based on the LST that you've entered.

The Pulse site is well worth checking out. Read through the docs and sign up for the newsletter. Pete is the programmer for their products and is their tech support guy. Very laid back and eager to help. There's a forum there, too, so you can ask/answer questions. I add my tuppence there as "OC_Grower".

I bought a PulseOne last year and it's the brains of my grow. I use Bugbee's "nine cardinal parameters" as a guide for my growing processes. About the only items that are truly "variables" are temp and RH* and the Pulse allows me to get the temperature and RH spot on with almost zero effort.



*OK, there are thrip infestations, hot and cold temperatures because my grow is in an unheated garage, power outages, and being a dumbshit who says "Nah, I don't need a trellis" but other than those things that make it a goat rope that, it's smooth sailing.

 

[Kyote]

LST is an important part of VPD because it drives the "deficit" part of VPD, that is the difference in vapor pressure within the leaf vs the vapor pressure outside the leaf. The vapor pressure outside the leaf is a function of the temperature and the humidity - if is really hot and dry, there will be a big deficit and lots of transpiration. LST is used for the "offset" - the difference between the leaves in the canopy and the ambient temperature in the tent//grow environment.

LST in this case is leaf surface temperature, or leaf offset temperature.. not low stress training.. just to clarify

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

 

[Delps8]

I'm rolling with you @Fermented_Fruitz @Marshydro fc6500 on the way For anybody else looking I've been neurotically tracking the price of lights from the manufacturers and Amazon multiple times a week since probably memorial day ish. This light has fluctuated from $740-700 with shipping including memorial day, father's day, 4th of July and all of the sales. Currently $629 and only $29 more then the fc4800 right now factoring shipping since it's always changing on the Mars site. But Mars doesn't charge for tax and with the AFN discount it makes it $71 cheaper from Mars then from Amazon. Can't wait for these plants to finish!

"There's an app a site for that"

Check out camelcamelcamel.com - weird name but it works.

 

[N/A-Greengo]

@Dale's Proper Bud @Frank the Dank @Jerseyphresh1 @420Forever

 

[Frank the Dank]

@Dale's Proper Bud @Frank the Dank @Jerseyphresh1 @420Forever

Evening buddy

 

[Lil Dab]

evening all

 

[Frank the Dank]

evening all

Evening Dale