[AUDIO Only] Office Hours LIVE Ep 29: Input variables, irrigation, lights, EC, VPD
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all right it's thursday that means it's time
for AROYA Office Hours hi welcome everybody
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a couple reminders before we get started this
hour is your chance to hear from the experts
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get answers in real time about data you're
seeing with your grow and share cultivation
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tips and tricks with tricks with other growers
in this exciting industry we thank everybody in
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advance for not using this time for things
like airing policy or industry grievances
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or asking about AROYA pricing although please do
book a demo so we can talk about that goodness
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my name is Kaisha i will be your moderator today
if you have any questions feel free to type them
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in the chat at any time if your questions
selected we'll ask you to unmute yourself
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so you can go ahead and ask it and for folks who
are asking for the first time alive today you can
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win an AROYA hat we're going to limit that to u.s
residents only one hat per household plus we are
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raffling off one of our limited edition abroad
t-shirts if you just post your email address
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in the chat that's going to get you entered for
your chance to win how's it going seth and jason
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pretty good staying warm excellent good to see
you guys are you ready for our first question
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sure yeah awesome okay it comes from our friends
at river city growers they wrote in what types
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of readings are you looking for with plant
measurements and on what days of flower would
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you recommend they be taken these questions lead
right directly into our theme for the week which
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is manual readings and sensor values so seth
and jason how about we start with an overview
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yeah yeah let's just uh do a little screen
share here and we'll kind of look at a
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little AROYA view and kind of the uh manual
reading inputs that we currently look at
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now that the list is pretty deep there but there
are a few key ones that you want to look at
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um typically you know as a grower we should
be taking our feed ec feed ph runoff ec and
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runoff ph on a pretty pretty much daily basis
if we're being responsible so this is a great
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spot to enter some of those manual reads right
directly on your phone without having to pull out
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a notebook or a binder or write on a spreadsheet
and then go later enter that into the computer
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but some of these are quite important one that
i really like to look at in terms of you know
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physical measurements we think of measuring is
plant height we want to really track our plants
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stretch throughout early generative and really
determine when that plant stops stretching and
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naturally has rolled over into its reproductive
phase you know if we try to implement some of
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our steering strategies at the wrong time that
can have some pretty detrimental effects not
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so much to plant health but to our desired
outcome which is both quality and quantity
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using these tools wrong can kind of lead us in
the wrong direction or just not get you know
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that yield increase we're looking for so really
learning to time it based on plant height node
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spacing and even taking stem diameter about every
other day through stretch is pretty good you know
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that's not so tight that it's going to be a huge
pain to go take but it's going to be close enough
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that the most we could miss that stop is by
one day which is totally acceptable yeah so for
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plant height i think one of the most critical
ones that's going to help you time out your growth
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cycles especially when you start just tailor per
strain and that's looking at that plant height
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right when you go from your 18 6 veg light cycle
to that 12 12 and you begin some rooting in and
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maybe even some generative steering at that
point so definitely absolutely at the end of
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edge get that that plant height in there and then
compare that to how you grew throughout the cycle
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what that stretching looked like throughout
your generative and then did we get the right
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size plant that we were looking for so especially
for like two or three tier growers with the leds
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a lot of times those plants start stretching up in
through the led lights and anything above those is
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obviously going to lose quality and quantity so
maybe you can shorten up your veg time a little
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bit which is always desired to get a little bit
more a little bit more cycles in through there
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and or you know if your plants didn't quite end up
with enough uh vegetative stems and structure to
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them uh or true veg you know maybe grow that
strain just a little bit taller before you
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run into a 1212 and flip for generative yeah i
mean you know stream to strain a lot of people
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have been surprised especially in the multi-tier
grows how small you really can flip a plant to try
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to keep it inside that height range and you know
once we switch over to that commercial setting
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we really don't want to be touching the plant so
that is super crucial really to dial that plant
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height coming in because if i've only got four and
a half or five and a half feet overhead my plant
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height needs to be dialed and now that i've put
you know all of my plants on this shelving system
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it's more work to get to an individual
plant so i really want to minimize the
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times that i have to go in and train tie
the plant down or do anything like that
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and when i say it's surprising on some
strains if you're used to a traditional setup
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with not necessarily unlimited but let's
say at least eight feet of overhead height
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you might be surprised when you find that you're
flipping plants that are you know 12 inches or
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less that's where it really comes in and you know
crop registration is key to tracking that because
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i said a bunch of times and i'll say it again
once you have the volume of plants that you
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have going through the average commercial
facility it becomes very difficult to keep
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track of it just through observation you know at
any given time you might have the same strain in
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every single phase of its life in your facility
and as cool as that sounds to go look at
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at the point that you have that many rooms
you might not have time to just go stare at
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the plants and think about it for hours on
end every day so you've got to really find a
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a system that relies on quantified measurements
to make these choices yeah and some of these uh
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manual readings that we have in here when we
think about a manual grow journal things that
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you might already be taking in in a notebook or
any of those type of other documentation ways
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you can now get those directly into our system
and for some of these it's nice to have just as
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a transition period so maybe you are taking uh you
know spot water contents right now or some spot
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ec measurements in that substrate with uh
with various different types maybe you're
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using the solus maybe you're using like you
know some blue lab equipment for these type of
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measurements and what you can do is you can
start to kind of calibrate and get used to
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using time series data from systems like
AROYA where they're automatically taking
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this information and maybe you're just not used
to that so it's a great transition period to start
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just documenting in compare against what you're
seeing in your charts and and kind of get used to
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having a little bit more more free time from
labor and not taking some of those readings
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yeah and you know just honestly getting and
getting to develop those good habits because
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although AROYA is going to capture all kinds of
data for you you've still got to put in enough
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work to organize it you've still got to analyze it
yourself to an extent you know roy is not going to
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just spit out the choices you need to be making
it's going to give you the information that you
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need to make those choices so giving yourself
some context in terms of you know even some
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of these that a lot of us aren't really used to
taking like stem diameter i have never taken that
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on a super regular basis but if i was running
a new nutrient line or trying let's say just
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starting to implement generative growth
strategies and stuff i might want to keep
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track of that because some of my plants are
going to respond by having a much beefier stem
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and hopefully you know having a lot stronger
structure if i don't see that on certain screens
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i i want to know and i want to have it recorded
so that i just have that bit of information about
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that screen and i know what to expect when i
apply certain techniques to it one of the things
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you'll notice in this system is we're letting you
attribute it specifically to a zone so if you are
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using your harsh groups and you've defined what
strains are in what zones really helps you keep
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track of how those strains are behaving and if
you are obviously mono cropping in a room then
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take some uh readings you know
multiple readings across each zone and
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that'll kind of help you understand your
consistencies and then maybe if there's any
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zonality issues within that room as
well so my recommendation is always
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take at least two or three at the very minimum
of those manual readings per zone ideally more
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but you know every manual reading does cost time
so if you can make good decisions based off of
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you know a limited set of of data then
then spend your time doing other things but
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you want to capture more than one so when we look
at things like plant height i always like to try
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and attribute the manual reading to the same
plant that we have some taros 12s installed to
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and then we can correlate that directly to the
data right so maybe i've got a zone with three
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substrate sensors in there i'll take three uh
plant heights and you know depending on how much
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different those are and if those plants accurately
represented the crop then i might take more
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absolutely you know going back
to crop registration is just
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really really really important can't
stress that enough and then you know
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really just not only adding these manual readings
but don't be afraid to add a note in there
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you know take pictures with your notes and then as
you get deeper and deeper you might find yourself
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looking at things like to model conductance here
with you know most people probably don't have a
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leaf parameter but this is you know another really
fun value to look at and say okay are my plants
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doing what i think they're doing we're going to
put that in are they conducting as much water
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through their stomata yes or no water activity
that's you know more of a post-production thing
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but very important we want to establish
that line between when our product is
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too wet and mold can grow or other
bacteria or other pathogens rather
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or it's so dry that you know we've sacrificed
quality and weight it helps with that consistency
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um you know we can go through most of these are
on here they're in here for a reason you know
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you as a grower do you need to take every one of
these maybe not but there are more tools in your
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toolbox to compare how your facility is performing
versus how you expect it to perform and then also
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diversify you know like uh we as a sensing
company don't typically do a lot of controls
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however most facilities we work at have some
sort of automated control system a lot of those
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systems come with a less sophisticated sensor
or a different brand of sensor having that
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redundancy in your system is great so if you want
to say okay i'm going to spot check rh out here
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with uh my brand x environmental controller sensor
that i'm going to check on that platform for now
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i can get that in there once a day let's say you
know it's on the screen that i got to walk up to
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in the room or in the hallway and get i can start
comparing those so i know that when AROYA says
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that we're at 62 humidity and brand x says
we're at 65. okay i personally trust the
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aurora ones more myself but uh now i have a
feeling you know and i i've written it down
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that way when i could go back and say all right
i was yep that's what it was that time not so
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much well i had this feeling that that sensor
was running low or high this week or that week
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you know we want everything to be as repeatable
as possible inside of you know an eight or nine
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week flower period and also any a full plant life
cycle and this you know capturing as much data
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as possible is how we're going to accomplish
that we can look at some of the other control
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systems a lot of times have the ability to run an
offset from their sensor data and what i prefer
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is obviously having your climate stations in a
representative area in the room that's typically
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within a foot of the canopy and you know at
least somewhere in one of the the quadrants or
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towards the middle of the room and if you are
using a controller offset and it's got a different
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climate station than ours get those sensors within
a pretty close range of each other i like to say
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you know if you can have those hanging within a
foot of each other then you're eliminating other
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variables that could account for that offset and
you're you're getting a better capture of the true
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environmental parameters in there oh yeah and
you know i mean another thing too is when you're
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looking at that room and you do have sensor
placement if you're getting some value that
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you don't expect go investigate it and sometimes
you might find that that side of the room i mean
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i've talked to several clients who hang it up
and i can't believe it's that dry in the room
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like why well it's molding show me a picture of
your climate station it's right in front of a fan
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or the d-hue and it's like it's not that as bad on
their part or anything it's just kind of like okay
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anytime we see something like that
we should investigate and then also
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make a record of it so now you've got a spot check
on that device and go okay here's a note when
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i put it by the d u it does not read accurately
it's off by 10 degrees fahrenheit and 20 humidity
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or something like that and i like to kind of think
about these parameters in my head on two different
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uh two different aspects well the first
would be thinking about uniformity so we
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can obviously have crop uniformity and we can
have environmental uniformity and uniformity
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is just an instant snapshot it's a snapshot
of what's going on right at this minute across
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our population across the volume of that room and
obviously if you have good uniformity then you can
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start looking at consistency and i like to think
about consistency as the performance over time
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is the hvac equipment operating as expected you
know every day all the time are our plants growing
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as we expect and so if you can think about
those two as a separate aspect a lot of times
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it's going to help you improve uniformity and
or then look at the specific variables that are
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increasing or decreasing
the consistency over the run
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yeah you've got to separate your variables and
start learning what you can and can't play with
0:13:42.640,0:13:48.000
and what is actually affecting everything and a
lot of times it's really tempting to go oh well
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my yield was terrible on that one i
had high humidity i had low light i had
0:13:53.040,0:13:58.080
this or that you got to pull those apart one at a
time before you can really make a judgment and say
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this is what was wrong like fix everything you
can and then remember that you know in the last
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well a couple hundred years that people
have been doing a lot of plant research
0:14:08.160,0:14:12.880
and trying to really figure out how plants
work you know it used to take a whole summer
0:14:12.880,0:14:17.680
it used to take a whole growing season if
we want to get into fruit breeding or just
0:14:17.680,0:14:22.080
raising fruit trees we're talking about years
to experience any return so that's something
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it's hard to as a grower be patient when
you've got this data right at your fingertips
0:14:28.080,0:14:31.840
you want to act on every little bit of it but
sometimes it's better to keep your consistency
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look at the entire run and then start to make
our decisions for the next run especially if
0:14:36.560,0:14:42.240
there's nothing catastrophic happening you know
if our goal is just to get from 2.5 to 3.5 pounds
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if we've been consistent at
2.5 we're going to do that
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step it up slowly treat it one variable at
a time so that we can observe what happens
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when we just change that one variable yeah
a couple things that you can kick my mind
0:14:56.400,0:15:02.880
there about so an example of analyzing uniformity
using manual readings would be you know taking
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multiple plant heights or multiple runoff ecs
runoff ph's across that room so that's you know
0:15:09.600,0:15:15.280
a snapshot of right now we're saying all right we
have 12 plant height readings from this room what
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is the standard deviation or what's the variation
between our top values and our bottom values
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and then an example of how to use those for
consistency would be taking those readings
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every other day or what your labor allows to to
be most helpful for how your facility operates
0:15:33.280,0:15:38.160
and one of the things that's really cool about
taking notes and adding pictures in here as well
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is you can notify other members on your team so
maybe you did see a big variation in plant height
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across there and you might hit up your your clone
manager tag them in the comments with a pound sign
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and or at sign excuse me and their name and
that'll notify them that uh you know hey
0:15:57.120,0:16:02.320
seth is you know there's something that your clone
team can do to help us improve our uniformity and
0:16:02.320,0:16:07.120
have more projectibility on our crop height
absolutely especially when we start talking about
0:16:07.120,0:16:12.000
some bigger facilities you know as this whole
industry has evolved i've definitely noticed um
0:16:12.720,0:16:16.960
a lot more specialization than we see necessarily
in some other horticultural industries so
0:16:17.760,0:16:22.960
you know it's very typical to have someone
that's just in charge of veg and cloning okay
0:16:22.960,0:16:27.680
well getting this information back to them because
they may not always they're not spending as much
0:16:27.680,0:16:32.880
time in the flower room seeing how those plants
end up nor are they probably doing nearly as much
0:16:32.880,0:16:37.600
between when it leaves their care and the time
they would go look at it so it's really important
0:16:37.600,0:16:42.320
that everyone that's actually you know the art the
human side of it that needs to be appealed to as
0:16:42.320,0:16:49.600
well and everyone's got to have that information
you know if you've got a veg manager that's
0:16:49.600,0:16:54.240
working on cloning they've got a way they like to
do it and it doesn't work they probably have some
0:16:54.240,0:17:00.240
good reasons for doing it the way they do it so
it's it's more of a conversation than just oh hey
0:17:00.240,0:17:06.880
smaller clones oh hey bigger clowns uh like okay
here's here's why you know here's what we're
0:17:06.880,0:17:10.640
looking at guys we gotta adjust a whole host
of different strategies to accomplish this and
0:17:11.600,0:17:14.320
the more data we can have the more
comfortable everyone's gonna be
0:17:15.760,0:17:21.600
one of the major goals of heroic is getting
everyone to work as a team at the facility and
0:17:21.600,0:17:26.560
so we you know we always encourage that you build
out the role permissions and you try and get as
0:17:26.560,0:17:32.240
many people involved documenting into the system
as possible and this really helps the people that
0:17:32.240,0:17:38.160
are good and specialized in a specific area get
get assistance so you know maybe you're doing
0:17:38.160,0:17:44.160
a good job documenting uh your pest management
stuff in here and you you know take a picture of
0:17:44.160,0:17:51.200
your sticky cards and you say hey you know at pm
manager i'm seeing a new type of bug or i'm seeing
0:17:51.200,0:17:56.320
a higher pest load in this room take some pictures
of it tag them in there and it's really just going
0:17:56.320,0:18:01.040
to help them use their time more efficiently
and have have more rise what's going on in
0:18:01.040,0:18:05.600
the room absolutely and that's one thing you
know since we were screen sharing this week i
0:18:05.600,0:18:10.080
might as well show while we're on it you can
really customize each role in the facility
0:18:10.880,0:18:17.280
so you can have everything up to an administrator
you know head honcho down to uh hey we finally hit
0:18:17.280,0:18:20.640
the point in cannabis where you might have some
interns running around doing some of these spot
0:18:20.640,0:18:24.960
readings for you and you can give them the ability
to look at the map and enter readings and that's
0:18:24.960,0:18:31.120
about it if you want so we can really customize
this so everyone in the facility can start using
0:18:31.120,0:18:36.240
it and uh helping build that data set that we're
looking for because there are a lot of moving
0:18:36.240,0:18:42.080
parts if not everyone's on board you're missing
missing little snippets here and there we've tried
0:18:42.080,0:18:47.680
to include as much flexibility on this as possible
because so many of these facilities operate with
0:18:47.680,0:18:53.280
different levels of employees and so you can add
more roles you know if you need 10 rolls in there
0:18:53.280,0:18:59.760
then you can absolutely specify exactly what each
person can access see modify and contribute to
0:19:02.160,0:19:07.600
amazing thank you guys so much for that overview
i actually learned a ton in that but what really
0:19:07.600,0:19:14.320
stands out to me is first of all the importance
of the human element still always but also second
0:19:14.320,0:19:19.760
of all data is just really expanding the gross
toolbox giving you much more insight into stuff
0:19:19.760,0:19:23.920
that you can't see and uh giving you other
considerations maybe that you hadn't thought
0:19:23.920,0:19:32.480
about so um really appreciating that synergy thank
you guys okay well eric is on with us today and he
0:19:32.480,0:19:38.480
posted a question eric you want to go ahead and
mute yourself and ask yeah of course um first of
0:19:38.480,0:19:44.400
all guys i always want to thank you guys for the
last like few weeks i've been on um i'm definitely
0:19:44.400,0:19:49.600
seeing improvements all throughout my run yeah
whether it's my veg or my flower cycle right now
0:19:49.600,0:19:55.600
so appreciate it a lot um had a quick question uh
this shouldn't be too complicated but how large
0:19:55.600,0:20:01.280
do you guys like to keep your p1s relative to your
p2s so i feel like i have an understanding of how
0:20:01.280,0:20:06.640
many shots to bring it up and you know how long
to do it but i'm not understanding what size they
0:20:06.640,0:20:11.840
should be because usually there's a recommended
oh let's say like one to three percent or for veg
0:20:11.840,0:20:17.840
but is that one to three percent the size of the
maintenance shots or the size of the ramp up shots
0:20:17.840,0:20:24.640
and how should you think about that and would
you change that throughout your vegetative or
0:20:24.640,0:20:30.800
um generative steering or it's just like a
set amount for ramp up so i think i'm just
0:20:30.800,0:20:34.560
going to start off with the basics here i don't
necessarily like to think about shot size relative
0:20:34.560,0:20:39.600
to each other uh for generative for example a
lot of times i won't even run any p2 shots we'll
0:20:39.600,0:20:45.280
just be running p1 shots i like to think about
those shot sizes in reference to the substrate
0:20:45.280,0:20:52.480
size and how big our drybacks were so for kind of
just a very general outline of running p1s i like
0:20:52.480,0:21:01.360
to have four shots in one hour and so if i see
about a 20 dryback then i'll need four shots of
0:21:01.360,0:21:08.080
approximately five maybe six percent if i want to
get right up to my field capacity within that hour
0:21:10.160,0:21:13.520
yeah you know i mean it does change it
can change a little bit so when we're
0:21:13.520,0:21:17.280
talking about generative we want to go
minimum shots so if we can hit that in
0:21:17.280,0:21:22.480
four inside one hour and get a 23 hour drive
back that's a great great generative strategy
0:21:24.240,0:21:27.600
when we switch over to veg what we're
looking at is more and more irrigation
0:21:27.600,0:21:32.240
events in the day to push that plant
to grow more that being said if we
0:21:33.920,0:21:38.240
lengthen that out a little bit maybe to two
hours we can fit a lot more one to three percent
0:21:38.240,0:21:43.840
irrigations in and get more events in and push
that that plant more vegetatively in the daytime
0:21:44.480,0:21:51.760
however pushing a plant harder that way is not
necessarily always what we want to do so it's
0:21:51.760,0:21:56.400
really important to go back to taking some of
those manual readings and notes and pictures i
0:21:56.400,0:22:00.720
think pictures speak a thousand words and we're
talking about plants i mean they always do but
0:22:00.720,0:22:06.240
especially to the grower we're used to staring at
plants so uh if you can start to relate some of
0:22:06.240,0:22:09.840
those things in the future it's gonna help
you a lot a couple things to keep in mind
0:22:09.840,0:22:16.160
as well is every once in a while you just have
equipment limitations that don't let you perform
0:22:16.160,0:22:22.000
perfectly as your intentions for crop steering
so thinking about the drip rate of your emitters
0:22:22.640,0:22:27.840
if you've got high flow emitters that are you know
are dripping faster than you'd like you may need
0:22:27.840,0:22:34.320
to split that into shorter durations of irrigation
just to allow the substrate capillary effect to
0:22:34.320,0:22:41.280
help unif or get uniform water content throughout
the entire media and then another thing to kind
0:22:41.280,0:22:46.320
of keep in mind is how much runoff that you're
trying to push for to modulate your ec levels
0:22:46.320,0:22:50.640
and so if if you need a little bit more
runoff sometimes you'll want slightly larger
0:22:50.640,0:22:56.800
shot sizes so that you can pull that ec down yeah
and that's something we're always working with is
0:22:56.800,0:23:01.600
the limitation of the medium that we're working in
you know and rock wool if we put on too big of a
0:23:01.600,0:23:06.720
shot too fast we're gonna get channeling coco same
thing it's gonna run off before we actually hit
0:23:06.720,0:23:11.360
field capacity because as jason said it doesn't
have time to move through the medium with the
0:23:11.360,0:23:16.080
capillary effect so sometimes you know like in
an ideal world if we want to go for a bigger
0:23:16.080,0:23:21.680
and bigger shot with fewer for generative we will
inevitably hit a point with coco it's uh you know
0:23:21.680,0:23:26.640
it can be higher up closer to ten percent maybe
a little more with rockwool six percent seven
0:23:26.640,0:23:32.000
percent is generally pushing on as big of a shot
as we want to put on you know and if we're trying
0:23:32.000,0:23:37.520
to push these push these plants as generatively
as possible we would have and i mean you can see
0:23:37.520,0:23:42.960
this in some very old school growing text you
have a big media size big pot we hit that thing
0:23:42.960,0:23:46.880
once in the morning if the pot is big enough and
the plants small enough we might wait a whole day
0:23:46.880,0:23:52.560
you know two days before we water what we're doing
is giving it one irrigation pulse and then a lot
0:23:52.560,0:23:58.000
of generative stress but at the same time growing
that way we end up with a plant that might be
0:23:58.640,0:24:03.840
four maybe five feet tall out of a five to seven
gallon pot and just not have the weight that we're
0:24:03.840,0:24:08.720
looking for it might have the quality but we
never we never got to that bulking phase the
0:24:08.720,0:24:13.120
plant really couldn't go into overdrive and
that's what we're kind of trying to do is uh
0:24:14.640,0:24:18.160
really time when we want to shift gears with
the plant i guess is a good way to put it
0:24:18.880,0:24:26.800
yeah substrate size one of those things that it's
pretty easy to dial in uh in comparison to some of
0:24:26.800,0:24:31.120
the other challenges that people face and when
it you know if you're a soil grower you're used
0:24:31.120,0:24:37.280
to having larger substrates that you can store
some of the the nutrients in that that living
0:24:37.280,0:24:43.760
soil the thing about hydroponic medias is all
our nutrients are coming from our fertigation
0:24:43.760,0:24:48.640
anyways so as long as we're not causing a
volumetric issue with the roots we can be in
0:24:48.640,0:24:54.560
a little bit smaller substrate and and be able to
keep that plant healthy on the other side of that
0:24:54.560,0:24:58.640
is obviously if our substrate's a little too small
we're going to run into challenges keeping the
0:24:58.640,0:25:03.520
water content high enough when we're doing a long
maybe a 23 hour drive back during our generative
0:25:05.120,0:25:11.200
yeah you know if you're finding that uh you
you can't ripen after bulking just because
0:25:11.200,0:25:16.800
the plant dries out too fast get a bigger pot
quit beating yourself up beating yourself up
0:25:16.800,0:25:23.680
everywhere else and solve the problem in a simple
way or cut your plant size in half but um yeah
0:25:26.240,0:25:30.800
eric did that answer your question uh
absolutely more than enough thank you
0:25:30.800,0:25:34.480
amazing awesome thank you so much for asking
and just a reminder to everybody's on with us
0:25:34.480,0:25:38.480
we're here for you please feel free to type any
questions you have in the chat and actually if
0:25:38.480,0:25:43.120
you want to be entered to win a limited edition
to royal t-shirt type in your email address too
0:25:43.760,0:25:50.400
all right you guys we got quite a few write-ins
this week um this one came from pat who emailed us
0:25:50.400,0:25:56.400
hi folks i have a question regarding ec versus
moisture level starting with the thought of dry
0:25:56.400,0:26:01.680
out causes ec to rise i have a blue lab pulse
and when checking in the morning the moisture
0:26:01.680,0:26:08.960
level may be 25 and the ec 1500 as the irrigation
cycle starts the moisture content starts to rise
0:26:08.960,0:26:14.880
and the ec seems to rise also then the ec
starts to fall as the moisture continues to
0:26:14.880,0:26:19.840
rise is the ryzen ec due to needing more
water for the sensor to read properly
0:26:20.880,0:26:28.320
did you get all that yeah i don't know the
specifics on on what this um blue lab pulse
0:26:28.320,0:26:34.160
meter is using my guess is this is actually just a
physical parameters of the pot and or the pot size
0:26:34.160,0:26:39.280
as that water content is moving through
it during an irrigation you know honestly
0:26:39.280,0:26:43.360
when i look at that right off the bat is if
you're saying 1500 we're talking about ppm
0:26:44.000,0:26:49.600
uh if we convert that with the standard ppm
500 scale over we're looking at about a 3.0 ec
0:26:50.560,0:26:56.320
if you are pushing enough runoff um basically
your plants eating through some of that ec in the
0:26:56.320,0:27:02.640
daytime it's dipping below 3.0 when you go ahead
or 1500 in your case when you go ahead and water
0:27:02.640,0:27:08.880
with a 3.0 ec it's going to come up a little bit
just because that nutrient solution has more salt
0:27:08.880,0:27:13.920
than your than your media does but it's going
to go back down a little bit and then as the
0:27:13.920,0:27:20.640
media dries out we do expect to see that you see
value go up unless it's already a fairly low value
0:27:21.360,0:27:26.640
if we're at a fairly low value which 1500 would
not be very high 3.0 it would not be surprising
0:27:26.640,0:27:32.400
to see that go from 1 500 down to 1 000 back
up to 1500 throughout the day if you had 24 7
0:27:32.400,0:27:36.960
data logging yeah ec is a concentration so
if we have the same amount of nutrients and
0:27:37.520,0:27:43.520
less water then our ec is going to be higher
and the truth is for vice versa as well yep
0:27:43.520,0:27:48.960
and it's just like i said that as you get to
the lower range of ec a lot of times we don't
0:27:48.960,0:27:53.440
see the plants behaving quite like we expect
them to behave at a higher ec in the root zone
0:27:58.000,0:28:00.960
excellent thank you so much pat thank
you for writing in your question
0:28:01.760,0:28:07.200
we got a question from hippo they wanted to
know besides doing generative steering is there
0:28:07.200,0:28:15.840
any other way to get the bud to ripen faster
by adjusting the environment ppfe co2 and dc
0:28:16.880,0:28:22.880
there might be a few things you could try to do
but typically when we look at uh ppfd for instance
0:28:22.880,0:28:28.560
light intensity okay we want to use as much of
that light as possible in the timeline we're given
0:28:29.680,0:28:33.760
losing intensity especially if we have a plant
that you know if we're trying to get it to
0:28:33.760,0:28:37.360
finish that means it's still growing right we're
still packing on a little bit of weight we're
0:28:37.360,0:28:42.320
still ripening trichomes we don't really want to
limit any of our crop limiting factors too hard
0:28:43.040,0:28:46.160
so let's say if we a week early
back off on the light intensity
0:28:47.200,0:28:52.000
well we just created a limitation in the amount of
energy we have available to the plants same thing
0:28:52.000,0:28:58.880
with water we say oh we're going to run them dryer
at the top end you're limiting your plants so uh
0:28:58.880,0:29:04.000
you know a lot of it unfortunately will go back
to genetics there's a few things we can do but
0:29:04.560,0:29:09.600
pretty much once you kick a plant into flowering
it has a timeline that it has to live on you know
0:29:09.600,0:29:15.120
in a big way we can see that as a lot of screens
if we run them at 56 days they'll have a certain
0:29:15.120,0:29:24.640
thca percentage versus thc we pull that at 65 you
might see that ratio reversed so kind of the old
0:29:24.640,0:29:28.880
adage without door growers goes if you want it to
be done and you think it's about ready wait a week
0:29:30.800,0:29:34.640
you know we're i'll go back to
it we're just hitting that point
0:29:34.640,0:29:39.040
in genetic development in cannabis where breeders
are starting to pull together things like
0:29:39.760,0:29:43.280
you know how long is the flowering period
we're really nailing down some of these
0:29:43.280,0:29:47.920
traits that before we just we you know
no one had solid crop registration on and
0:29:48.640,0:29:54.080
no one was sharing it so do i want some
of my strains to finish faster yes but
0:29:54.080,0:29:58.560
do i have to accept the limitations that
running that strain presents absolutely
0:30:02.720,0:30:07.120
that's it mother nature will always be in charge
won't she yeah and i do want to stress that there
0:30:07.120,0:30:12.880
are techniques that people will use like drought
stress or you know low temp stress to try to speed
0:30:12.880,0:30:18.640
that up if we do that we are strongly risking
damaging the plant and pulling down a less
0:30:18.640,0:30:24.720
healthy plant which isn't what we want you know
if we're trying to force it to finish or force it
0:30:24.720,0:30:28.080
we are probably compromising some
quality somewhere along the way or
0:30:28.960,0:30:32.880
you know like if we're talking about temperature
stress looking at potentially running into
0:30:32.880,0:30:37.520
mold issues and other facility problems
that we just don't need to have present
0:30:41.280,0:30:45.360
excellent that's great thank you so much eric
you had another question you want to go ahead and
0:30:45.360,0:30:50.960
admit yourself uh yeah um so one
question for you guys i recently
0:30:50.960,0:30:56.480
got some winches installed so my lights are
much easier to adjust i guess up and down so
0:30:57.200,0:31:03.120
you know you get that uh that flexibility
you'd like and i've been pretty close like
0:31:03.120,0:31:07.760
within that one foot of my canopy and
i don't see any signs of light burn
0:31:07.760,0:31:13.280
but have you guys noticed anything like other than
maybe the leaves like my leaves look healthy um
0:31:13.920,0:31:19.840
that would indicate you're pushing too hard and if
you guys have any guidance there so specifics to
0:31:19.840,0:31:27.440
life cannabis is a very light hungry plant it
grows fast it can harvest a ton of energy and
0:31:27.440,0:31:32.080
so you know if you're using something like leds i
don't necessarily get concerned about being within
0:31:32.080,0:31:37.360
a foot of it here's something like hps's you get
a little concerned because the heat from those is
0:31:37.360,0:31:42.240
going to modify your environment your vpd so the
relative humidity temperatures are going to be
0:31:43.120,0:31:47.840
less controlled less ideal than you want
right at the top of the canopy but if your
0:31:47.840,0:31:52.400
light quantities are what you want with that
led and you're not seeing any negative impacts
0:31:53.520,0:31:58.720
i'd keep doing what you're doing yeah in terms
of light typically it'll tell you like in the
0:31:58.720,0:32:05.680
led situation i have run lights too close which
is basically touching them and they turn white
0:32:05.680,0:32:10.400
they bleach pretty hard or you know like with
the hps basically it just gets really hot the
0:32:10.400,0:32:14.240
closer you get to that light so if you're inside
i'm guessing you're at led if it's a foot because
0:32:14.240,0:32:20.160
with hps you probably would have have some of
that clawing dried out bud leaves general torching
0:32:21.200,0:32:27.200
um yeah what do you mean by getting too
white so basically they'll look albino
0:32:27.200,0:32:30.800
if you have them too close to those
leds like they'll just bleach it out
0:32:34.800,0:32:40.320
gotcha all right thank you thanks for your
question eric this is a perfect segue into
0:32:40.320,0:32:44.640
a question we got from ryan at wild west
genetics they're looking for some advice
0:32:45.200,0:32:49.280
we wrote i have an led room that is about to
harvest but the plants don't look as finished
0:32:49.280,0:32:54.000
as they normally do in our hps room some plants
still have light colored hairs when normally
0:32:54.000,0:33:01.760
they look more finished now the canopy is
at 990 to 1050 mole any thoughts yeah so
0:33:02.720,0:33:07.120
we're looking at the spectrum from leds
versus hps that's probably going to be the
0:33:07.760,0:33:13.520
factory that's playing in into this and so a
lot of hps's have quite a bit of red and far red
0:33:14.320,0:33:20.560
typically that's something we'd see in fall and
that's going to encourage those plants to ripen up
0:33:20.560,0:33:27.200
a little bit with leds they're going to be usually
closer into the actual photosynthetic ranges
0:33:27.920,0:33:33.120
for chlorophyll a and chlorophyll b so i
like that sometimes because we can grow
0:33:33.120,0:33:38.400
quite a bit larger plant maybe we'll have to
extend the harvest session by a few days in order
0:33:38.400,0:33:44.000
to achieve the same ripeness typically you know
even on top of the efficiencies that we've added
0:33:45.200,0:33:51.200
for utilities of using leds but a lot of times
you're going to get more weight because they're
0:33:51.200,0:33:55.040
pushing the right wavelength for those plants
to harvest and it is going to be brand dependent
0:33:55.600,0:34:02.160
fortunately leds have come a long ways in the
last five to ten years and manufacturers are
0:34:02.160,0:34:07.680
much more likely to have a well-tailored spectrum
so you know if you have any concerns look up the
0:34:07.680,0:34:14.080
manufacturer the model that you have take a look
at those spectrums and then do a little bit of
0:34:14.080,0:34:19.680
research on how plants behave yeah and you know
something to remember because like that hps we're
0:34:19.680,0:34:24.560
running that far red we don't have the ability to
like slowly bring that in one thing we are doing
0:34:24.560,0:34:28.720
is pushing a little bit of stress on the plant
that way the whole time by having not quite the
0:34:28.720,0:34:34.560
ideal spectrum so one way to look at it is like
yes maybe i do add a week switching to leds on
0:34:34.560,0:34:41.040
this strain however that's an extra week to grow
more mass and i have a more efficient light that's
0:34:41.040,0:34:45.200
allowing me to grow more mass per amount of
energy i'm putting in in the form of light so
0:34:46.800,0:34:50.800
again do we want them all to finish
early of course we do but if we can
0:34:50.800,0:34:54.080
work more with the plant rather than against
it we're always going to get a better result
0:34:54.800,0:35:01.200
and another thing is thinking about the rim
parameters so your environment with leds because
0:35:01.200,0:35:05.280
you've got less radiation hitting those leaf
surfaces a lot of times you're going to need
0:35:05.280,0:35:10.080
to up the temperature in your room uh slightly to
accommodate the change that the plant's feeling
0:35:11.120,0:35:15.760
yeah and that's i mean that's another tool
that's always good for a grower to have is a
0:35:15.760,0:35:21.120
small laser thermometer go get your leaf temp see
like how much radiant energy that light's actually
0:35:21.120,0:35:25.920
putting out you know if you're seeing a leaf temp
that's spiking up in the upper 80s and low 90s
0:35:26.640,0:35:31.200
move your hps up a little bit you know what you
might find though is like with the leds and a
0:35:31.200,0:35:35.360
lot of them just put out i mean some of the newer
models with uv supplementation a little bit of far
0:35:35.360,0:35:40.960
red will help out with that leaf temp but a lot of
growers find that taking that heat source of the
0:35:40.960,0:35:45.440
hps out of the room really does result in having
to significantly pump up the temperature in there
0:35:46.000,0:35:49.680
like the difference being that before
they never had to run their heat ever
0:35:50.240,0:35:54.000
and now they have to for quite a bit of
the year just to get it up to let's say
0:35:54.000,0:36:00.480
82 as a leaf surface tent it's one of the reasons
we love using paper pressure deficit to analyze
0:36:00.480,0:36:05.520
a room when we think about that temperature being
higher with hps as well hps's are also burning off
0:36:05.520,0:36:11.040
relative humidity so make sure that you've checked
in and that your room and those facilities can
0:36:11.600,0:36:16.400
accommodate the change that you've made
from running hps now and running led lights
0:36:19.360,0:36:24.240
dropping the knowledge i love it okay so just
a reminder for everybody who's on with us don't
0:36:24.240,0:36:30.160
forget to type your question in the chat
um this question came in from uh bmg 389
0:36:30.160,0:36:35.360
you guys spoke a little bit earlier about light
intensity so um they wrote some growers lower
0:36:35.360,0:36:43.600
light intensity and co2 later in flower any cons
to this save a little money yeah i mean it just
0:36:43.600,0:36:49.840
depends on how much you're talking about lowering
it obviously uh during the end of the cycle
0:36:49.840,0:36:55.600
the the plan is a little bit less vigorous in the
amount of growth is it's turning its chemicals
0:36:55.600,0:37:01.200
into a ripened product and so you might be able
to get away with it as long as you're not seeing
0:37:01.200,0:37:08.320
a significant decrease in your production yeah i
would you know much much like tapering off your
0:37:08.320,0:37:13.280
nutrient regimen you know do it do it minimally
you don't have to do it too much and uh you know
0:37:13.280,0:37:19.440
typically as far as light intensity goes um
we still are not really approaching indoors
0:37:20.320,0:37:26.400
what direct sunlight is outside so lowering it
back say 20 on your indoor grow light typically
0:37:26.400,0:37:30.880
isn't going to have the same kind of effect as you
as you know putting a shade glo cloth up outside
0:37:32.400,0:37:37.920
so looking at it you know you'd really to say for
sure that you want to do that i would want to have
0:37:37.920,0:37:42.960
some trial data and say all right when i did this
did this in fact increase my terpene content or my
0:37:42.960,0:37:48.640
thc content what what exactly happened because
some of those pathways too we're talking about
0:37:48.640,0:37:55.840
cannabinoid and terpene formation in the plant
have to do with time and energy inputs so if we
0:37:55.840,0:37:59.360
don't have intense enough light at the right
time you know some strains are going to ripen
0:37:59.360,0:38:03.520
earlier but they would actually be ripening
in some pretty warm months like late august
0:38:03.520,0:38:09.120
early september where they're from we may not
necessarily need to have a big overnight diff or
0:38:09.120,0:38:14.480
a big you know softening up at the end to try to
bring them down i think a lot of that knowledge or
0:38:15.200,0:38:19.040
techniques kind of came from the idea that
you know in the fall we get less intense light
0:38:20.640,0:38:24.960
then that's somewhat true but the far
red has a much bigger impact on that
0:38:25.760,0:38:29.440
than say lowering your light intensity
a little bit and as far as co2 goes
0:38:31.040,0:38:36.080
you know if it saves you money cool i
would just never drop my co2 below my ppfd
0:38:39.680,0:38:45.280
excellent thank you guys um so ryan at wild
west genetics had a couple other questions
0:38:45.280,0:38:50.800
specifically about um larging harvest data
in AROYA so they wrote when recording harvest
0:38:50.800,0:38:55.920
data is there a way to specify plants taken for
live extraction they wouldn't have a dry weight
0:38:58.640,0:39:04.160
so if you're using uh our metric integrated
version of the software that actually can
0:39:04.160,0:39:09.040
get captured because you're immediately going to
be putting it in a package however we are still
0:39:09.040,0:39:13.680
coming out with more and more analytic options
over time to give you control on how you want
0:39:13.680,0:39:18.560
to evaluate your harvest because that's a good
point we do have several growers that are going
0:39:18.560,0:39:23.600
straight to only fresh frozen for instance or a
certain portion of their crop is going to fresh
0:39:23.600,0:39:29.520
frozen a certain portion is going straight to
wet flower we're working on having more options
0:39:29.520,0:39:34.640
to evaluate that and one of those in the future
would be hopefully you know a historic poll which
0:39:34.640,0:39:38.800
we're looking at being will access some of your
previous data that's held in compliance databases
0:39:40.240,0:39:45.200
and uh yeah just overall trying to
get more harvest analytics for you
0:39:48.000,0:39:52.960
success their other question was any plans to
link harvest data data with metrics so currently
0:39:52.960,0:39:57.840
you can link harvest data to metric yes if you're
doing it in metric it all pipes right in because
0:39:57.840,0:40:02.560
you're getting the weights directly through arroya
that data actually is generated in roy and then
0:40:02.560,0:40:08.480
pushed up to metrics so that goes right in but
then we have to be clear that this functionality
0:40:08.480,0:40:14.800
does depend on where they're located right correct
yeah so right now market you're in yeah we support
0:40:14.800,0:40:22.320
california colorado michigan massachusetts nevada
i do believe for the the states that we have an
0:40:22.320,0:40:28.000
inactive metric integration for we're working
on uh deploying that in other metric states
0:40:28.000,0:40:33.120
one of the exciting things for uh those people
that we haven't addressed their state yet or are
0:40:33.120,0:40:38.880
not using metric is kept rolling out with
our generic our generic harvest workflow
0:40:38.880,0:40:43.520
and so that's going to just help people
capture those harvest weights using
0:40:43.520,0:40:50.800
the rfid and bluetooth scale that we sell with
the system we call it our touchless harvest system
0:40:50.800,0:40:56.480
it's great because you're not getting trichomes
all over your uh your computer or your cell phone
0:40:56.480,0:41:02.400
or in your notebook and it's also eliminating any
of the chances of error because you swipe your
0:41:02.400,0:41:07.280
your tag you weigh up that plant and it's going to
capture those weights pretty quickly yeah no more
0:41:07.280,0:41:13.440
change in the glove just to try to write it down
and be able to let go of the pen you know i know
0:41:16.640,0:41:21.360
awesome thank you okay so we have our son who's
on with us arson uh you have a question you want
0:41:21.360,0:41:28.000
to unmute yourself and ask away yes hi guys uh
first time viewer again sorry if you went over
0:41:28.000,0:41:34.160
this like a thousand times um i have i have a
room right now and we just harvested this is my
0:41:34.160,0:41:40.560
i want to say third one fourth one so i've had
some success but i feel like every time i cut my
0:41:40.560,0:41:44.880
plants and i hang them and going through the
whole drying and curing process i feel like
0:41:44.880,0:41:50.800
that's where i'm lacking some sort of guidance
or direction because it always seems to go south
0:41:51.680,0:41:57.600
so i don't really touch the humidity all that
much i just keep a fan on for air circulation in
0:41:57.600,0:42:04.480
the room and just maintain a temperature of around
70 degrees more or less um and that normally takes
0:42:04.480,0:42:08.240
about seven to ten days to dry so that's why i
haven't really been messing with the humidity or
0:42:08.240,0:42:14.480
anything at all um and the curing process once
we trim the trim the buds and put them in their
0:42:14.480,0:42:22.000
individual packages i uh put in those humidity
packets to maintain around 62 humidity so i just
0:42:22.000,0:42:25.440
want to know is there anything that i'm doing
wrong is there anything that i'm doing right
0:42:25.440,0:42:31.200
is there anything i can do better just general
guidance would be very helpful when when you say
0:42:31.200,0:42:36.160
that part of the process goes south can you detail
us kind of what uh what goals you're not achieving
0:42:37.680,0:42:44.640
well the the first the very first batch
that i did i was pulling in about 2.2 to 0.3
0:42:44.640,0:42:50.320
uh pounds per light and then after that i have
not been able to even hit that so it's been more
0:42:50.320,0:42:55.440
around like 1.7 uh 1.9 i think was that was the
max that i got and i don't know what's going to
0:42:55.440,0:43:02.160
be the next run this this run but um i'm not
anticipating it being over 2.7 again or 2.2
0:43:02.160,0:43:07.280
again so i just want to be hitting more yield
essentially so i don't know if i'm messing up
0:43:07.280,0:43:13.440
on the whole grow or just the drying process but
um yeah that's the that's the phase i'm in right
0:43:13.440,0:43:21.360
now so i just figured i might ask yeah so this is
where i would uh utilize different checkpoints of
0:43:21.360,0:43:26.240
data analytics so looking at your wet weights you
know the wet weights coming through consistently
0:43:26.240,0:43:31.360
or you know is it you know a decreased
proficiency in the cultivation that's actually
0:43:31.360,0:43:39.360
uh less dry yield uh if those wet weights
are all fairly same we endure increasing your
0:43:39.360,0:43:46.240
decrease then definitely take a look at the drying
process and that means attributing your cultivars
0:43:46.240,0:43:52.480
are you know we're looking at cultivars that maybe
just dry lose more wet weight than others and so
0:43:52.480,0:43:58.080
obviously those variables are going to help you
determine which uh which process to to take a look
0:43:58.080,0:44:05.120
at and how to run that one of the tools that we do
sell is called a water activity meter and it's a
0:44:05.120,0:44:11.520
very common sensor and industrial applications
of uh cereal manufacturing uh jerky process
0:44:11.520,0:44:18.000
control and any of those other food industries
it's actually what we've used the sensor for uh
0:44:18.000,0:44:23.200
quite a bit here in the history of meter group so
we're selling those into the cannabis industries
0:44:23.200,0:44:29.280
that you can go in and document what the the dry
downs or the water activity you know the loss of
0:44:29.280,0:44:36.560
moisture during your dry cycle looks like and help
you really standardize and make sure that your
0:44:36.560,0:44:42.800
your product is going out safe so if we do
have a plant that's got much larger buds we
0:44:42.800,0:44:47.360
may need to keep it in the room a little bit
longer and by documenting that water activity
0:44:47.360,0:44:52.720
you'll know exactly when to be taking it out to
achieve the correct wet weight keep the quality
0:44:52.720,0:44:56.960
of the product up and then also keep that
weight on the bud and make sure that it is
0:44:56.960,0:45:03.040
going to be satisfying your test constraints for
sale yeah if if you haven't been having you know
0:45:03.040,0:45:08.480
any quality problems or big problems with mold
forming in your dry room i would keep doing what
0:45:08.480,0:45:13.360
you're doing for the most part typically i run a
little bit lower temp you know around 60 and 62
0:45:15.360,0:45:21.200
but otherwise if you're not if quality is not your
problem i would definitely be looking more into
0:45:21.200,0:45:26.800
the cultivation side however one thing to always
watch out for you know seven to ten days for some
0:45:26.800,0:45:32.800
strains is a little even on the short side um
having some kind of sensor in the room so we can
0:45:32.800,0:45:36.960
monitor you know humidity in the room while it's
drying down and try to keep things consistent is
0:45:36.960,0:45:40.960
pretty key because we want to get past a certain
point when we first dry down to avoid mold
0:45:41.600,0:45:47.280
then we want to slow that process down if we dry
too fast that cure is just not going to work right
0:45:47.920,0:45:52.400
if that's bone dry in there we can't get the
chemical breakdown we want we can't get that
0:45:52.400,0:45:58.000
quality cure so another thing to kind of think
about uh you know as i mentioned those those
0:45:58.000,0:46:04.080
data choke points if you will is thinking about
the other handling involved with that product so
0:46:04.080,0:46:11.360
if you are carrying it just perfect and it ends
up in a processing room you know maybe during
0:46:11.920,0:46:19.200
breakdown trim rolling whatever your post process
is there are that humidity might be able to be
0:46:19.200,0:46:25.040
increased in those rooms to to help that product
stay at just the right water activity now if that
0:46:25.040,0:46:30.720
water activity goes in it's a .55 on those plants
and then they go into a room that's 30 percent
0:46:30.720,0:46:36.800
humidity they're going to actively lose weight and
they're going to lose some quality to that room
0:46:36.800,0:46:41.840
trying to get to equilibrium with the humidity
in any environment that they're residing in
0:46:42.640,0:46:46.640
absolutely that's a good point bringing
up processing and uh you know especially
0:46:46.640,0:46:51.760
joint rolling a lot of times that is not the
quickest process the product is you know in an
0:46:51.760,0:46:56.000
open environment for a fair amount of time we're
working with something that we grind you know
0:46:56.000,0:46:59.680
there's a few different ways to do that but we're
grinding it up we're exposing more surface area
0:47:00.320,0:47:05.280
so that's that's another point you know we want
to make sure that we're keeping that consistent
0:47:05.280,0:47:11.040
the whole time all the way into packaging
uh yeah we're just losing grams to the air
0:47:13.280,0:47:17.680
and so just you know a good example is
if our product goes into a processing
0:47:17.680,0:47:22.880
room and the product is at 0.55 for
water activity if our room is at 55
0:47:22.880,0:47:27.840
humidity there's going to be no increase or
decrease in the water activity of that product
0:47:32.880,0:47:39.200
arson did that answer your question absolutely
did thank you so much gentlemen awesome thank
0:47:39.200,0:47:43.200
you for joining us and for submitting your
question we we're happy to have you and
0:47:43.200,0:47:47.600
would love to send you an AROYA hat if you're up
for uh dropping your email address in the chat
0:47:49.440,0:47:53.440
yeah for sure i'll do that right now wonderful
excellent and then that's a reminder everybody
0:47:53.440,0:47:57.200
else on with us if you ask a question for
the first time live we will send you a hat
0:47:57.760,0:48:01.760
um all right well we've got a few more
questions just to close out the show just
0:48:01.760,0:48:07.600
kind of some general looks like some crop steering
questions so let's get to this one from space dog
0:48:07.600,0:48:13.760
select they want to know what's more important
substrate conditions or hitting specific drybacks
0:48:15.200,0:48:22.720
i think drybacks are a substrate condition um so
i guess it's gonna be really hard to prioritize
0:48:22.720,0:48:28.560
those because they are interrelated uh you
know obviously if your substrate conditions are
0:48:28.560,0:48:32.880
way off maybe you dried back too much or
you didn't get back up to field capacity
0:48:34.880,0:48:39.120
not sure where to go with this question yeah
so i think there's a few things to talk about
0:48:39.120,0:48:43.440
here like substrate condition in terms of how
well it's maintained the functionality we want
0:48:43.440,0:48:49.840
it to so in terms of rock wool really value your
rockwell's ability to retain water and have a high
0:48:49.840,0:48:55.520
field capacity over pushing a bigger dryback
so let's say we're running 55 field capacity
0:48:56.080,0:49:02.800
or at 55 in our rockwool and we just had a
burning desire to run a 30 dryback because
0:49:02.800,0:49:08.480
we've heard that's cool um yeah losing
your field capacity is not worth it
0:49:09.600,0:49:14.480
basically you know your media is what's
keeping your plant alive so we always have
0:49:14.480,0:49:20.800
to work inside of keeping that media inside of
a good you know a workable range of conditions
0:49:21.520,0:49:27.120
so as jason said they're very interrelated but you
can start looking at with different media types
0:49:27.120,0:49:30.560
where the limits to your dryback might
need to be to maintain those conditions
0:49:31.360,0:49:35.680
so in rockwool you know we're trying to keep it
above 35-40 percent all the time and in cocoa
0:49:35.680,0:49:39.920
usually call about 20 percent the bottom
line just so we don't have a plant that's
0:49:39.920,0:49:44.080
on the other end of the table that's a little
drier than the others hit 12 and actually wilt
0:49:48.720,0:49:54.800
wonderfully guys thank you so much i think this
is a good one for us to close off on here los
0:49:54.800,0:50:01.040
greene goss wrote in why is it important to give
intervals between shots during irrigation and how
0:50:01.040,0:50:07.440
long max should i wait great question uh i think
we hit it a little bit earlier on just talking
0:50:07.440,0:50:13.520
about giving the substrate a chance to to soak
up so that's capillary effect of a substrate
0:50:13.520,0:50:17.280
be slightly different for different
types of medias rockwool for example
0:50:17.280,0:50:24.960
has very good capillary effect just because it's
a unanimous it's very consistent uniform product
0:50:24.960,0:50:29.760
and i think i've used this analogy a couple
times before and it's just a you know dry sponge
0:50:29.760,0:50:36.240
and so if we've got a dry kitchen sponge and we've
got it under a sink that's dripping slightly then
0:50:36.240,0:50:41.040
it's going to help get that entire thing
saturated up as the capillary effect
0:50:41.040,0:50:47.040
pulls moisture throughout the sponge now if
we've got the sink on high it's very likely
0:50:47.040,0:50:51.760
just going to saturate the middle of the sponge
and then start running through the bottom before
0:50:51.760,0:50:56.560
the capillary effect has the ability to catch up
so it's one of the reasons that we like lower flow
0:50:56.560,0:51:03.680
drip emitters and it's one of the reasons that we
do intervals in between shots yep and we also want
0:51:03.680,0:51:09.200
to maintain a healthy root zone so for instance
if we had a dripper running on there let's say
0:51:09.200,0:51:15.200
24 7 constant flow we're really not giving the
chance for the media to drain a little bit and
0:51:15.200,0:51:20.400
pull air down into the root zone we really
need a heavily oxygenated environment so
0:51:20.960,0:51:25.040
if we're you're getting too much and not allowing
a dryback like let's say we're trying to go for a
0:51:25.040,0:51:30.160
point one percent and maintain a straight line
all afternoon we're not giving the planet the
0:51:30.880,0:51:34.960
media a chance to have any you know the right
amount of water and air movement through it
0:51:35.840,0:51:42.400
which is very essential yeah and so it's a
it's a vacuum that i mean is caused so when
0:51:42.400,0:51:47.280
we irrigate that water is going to pull
down through the substrate and behind
0:51:47.280,0:51:54.240
it it's pulling fresh oxygen and basically
rejuvenating those roots uh easy indicator that
0:51:54.240,0:52:00.400
there's not enough oxygen or maybe some other
issue is roots that are a little brownish so
0:52:00.400,0:52:06.720
obviously we're looking for very healthy robust
white roots uh some people do increase the
0:52:06.720,0:52:13.040
dissolved oxygen in their fertigation systems to
also help provide that uh that fresh air the roots
0:52:14.160,0:52:18.320
oh yeah absolutely that's you know that's probably
one of the keys there just watch for those
0:52:18.320,0:52:24.000
traditional over underwatering stress signs if
your block is super wet and your plants wilted
0:52:24.000,0:52:29.120
and it's kind of squishy down by the base you got
brown roots you're probably not really letting it
0:52:29.120,0:52:34.160
get enough of a dry back and really uh
refresh the root zone it's drowning yep
0:52:38.320,0:52:41.840
amazing thank you guys you also have me
uh thinking i gotta take a look at my
0:52:41.840,0:52:46.560
little can of babies in the backyard i am a
notorious over waterer i'm always so worried
0:52:48.560,0:52:55.760
get some pearlite get some pearl okay excellent
i'm on it you guys posted um seth and jason thank
0:52:55.760,0:53:00.560
you so much for what an excellent conversation
thanks to everyone who's on with us today and
0:53:00.560,0:53:05.760
submitted a question and thanks to folks who wrote
us in we're here for you we want to hear from you
0:53:05.760,0:53:10.400
um so that we can talk about what's going on with
your grow um if you have any questions about AROYA
0:53:10.400,0:53:14.480
how could be used to improve your cultivation
production process or any other topic you'd like
0:53:14.480,0:53:19.840
us to cover in a future episode of Office Hours
feel free to post it in the chat shoot us an email
0:53:19.840,0:53:25.600
at support.org metergroup.com or send us a dm
on instagram we definitely want to hear from you
0:53:25.600,0:53:30.080
we record every session everybody who came
today is going to get a link to the video from
0:53:30.080,0:53:35.440
today's discussion and we'll also post it on
the AROYA youtube channel like subscribe and
0:53:35.440,0:53:40.320
share while you're there and if you find these
conversations helpful please do spread the word
0:53:41.120,0:53:55.840
seth and jason thank you again i'll look forward
to seeing you guys next week thanks Kaisha bye