Subscribe
Share
Share
Embed
Seth Baumgartner and Jason Van Leuven open the mics for your crop steering and cultivation questions.
OH TX 68
===
[00:00:00] Kaisha: All right. How's it. Growing friends, welcome to office hours. Your source for free cannabis cultivation education. I'm Acacia, and I am home moderating side by side. And my good friend, Mandy, how are you doing over there?
[00:00:11] Mandy: Hey, Kaisha, Hey everyone. We're here for episode six. Eight or so sector. To be here with you all today.
[00:00:18] Mandy: We're also going live or over on YouTube. So if you're logging on over there, make sure you send us your questions and I'll make sure I get those to the team. If you're active on social media. Be sure you're following us on all the platforms. So we're on Instagram, Tik, [00:00:30] TOK, YouTube, LinkedIn, and social club.
[00:00:32] Mandy: And we've never done this before, but cultivators. We need your help with something. We're calling on you to vote for a Royal office hours for best cannabis best cannabis podcast of the year for the MJ international cannabis awards happening during MJ biz con this year. So I'm going to be posting the link right after this, in the chats with you all. And we're going to be sharing this on social too, and we'd really appreciate your support. But let's not forget why we're here. We've got a ton of your car steering [00:01:00] questions this week. So I'm going to pass it back to you, Kaisha.
[00:01:02] Kaisha: Awesome nanny. Andy. Thank you. And thank you to anybody out there that submits us for the MJ awards. We appreciate you. All right. Your. I live with us here and have a question. Type at any time in the chat. And if your question gets big, we will have you either unmute yourself or we will ask for you, Seth and Jason are.
[00:01:17] Kaisha: Oh, back in the house, gentlemen, how are you today?
[00:01:20] Jason: Good. Feels great. In the office. Yeah on. On the road for a few weeks, and it's always more fun to shoot these. In the studio.
[00:01:29] Seth: Yeah, it's been a [00:01:30] minute since we both been here.
[00:01:31] Kaisha: The band is back together. All right. You ready for our first question? We're just going to get like right to it.
[00:01:36] Kaisha: Yeah. All right. I got a couple here from paying buds. They wrote. Yeah, we've been following you guys and getting some of that Price's knowledge in. We were wondering if you could tell us if my humidity is fluctuating between 67 to 72%, because of a little oversized AC, which keeps cutting off, would it affect the plants?
[00:01:57] Kaisha: Temp is also 27 to 29. [00:02:00] Do you have any help at all for us on how to deal with an oversized? AC what advice do you have?
[00:02:06] Jason: As long as the 27 to 29 is in Celsius. Then you think things are probably going to be all right. As far as that. Plus, or minus two and a half degrees swing on a set point because an oversized AC, I would say that's pretty good.
[00:02:19] Jason: A lot of times to actual sensor that's running a control unit like that is going to be plus or minus. Two degrees. Or 2%. And relative humidity. And in that case, a. [00:02:30] You're getting as close as you're monitoring and that's probably why you're seeing those ranges in a roid. If you are using a Riaz it's a slightly more accurate sensor than most of the control sensors on the market.
[00:02:40] Seth: Yeah. That's pretty typical of what we see looking at grow rooms. All over the U S You see a little bit of fluctuation, four or 5% or five degrees is not uncommon. The tighter you can get it the better. But you also want to consider how quickly you're shutting things on and off and what your system's actually capable of without breaking.
[00:02:58] Seth: Because you're always going to have rising [00:03:00] humidity if you have good transpiration. So it's never going to be exactly one value. For any long amount of time, it's always going to be going up or going down. And if nothing else. You might be learning a little bit about how you would want to go about your HVAC and your next iteration.
[00:03:17] Seth: If you've got too much of an effect too quickly, when you turn your, when your a system cycles on, you might look at having more smaller units that are phased out to give you just a little bit more granular control on multiple set points. [00:03:30] That way you're only taking out a smaller amount of humidity or temperature at a time.
[00:03:34] Jason: Yeah. And that being said, I would way rather be in a situation where I'm oversized. I'm only dealing with He'll post your line is two per a 2.5% swing and be undersized to not be able to get rid of the humidity when I've got a. All canopy and then lots of transpiration going on in the room.
[00:03:54] Kaisha: Fantastic guys. Thank you so much for that. So ping-pong has had a part two here they wrote in. Can you give [00:04:00] some standards, CO2 targets for stretch Vulcan. Ripening. We think,
[00:04:05] Jason: So we usually just go with our rule of thumb. PFD or your light intensity values was two or 300 per PPMS.
[00:04:14] Jason: And I take those light values and add two or 300 and turn that into your. PPMS for CO2 levels. So we're at a. No. A thousand PFD when we're in bulking and let's be it. 12 to 1300 PPMS for CO2 levels. [00:04:30]
[00:04:30] Seth: Yep. And I think that's one thing we've seen a lot is Just waste when it comes to CO2.
[00:04:35] Seth: You know the point. It's not really a quick point of diminishing returns. There's adequate. And then there's a pretty wide band before we see any negative effects from it. If you've got a system that's not turning off correctly overnight, if you are running. 1500 PPM, even though you've turned your lights down from 1200 to 900.
[00:04:53] Seth: In your last week, ripening, if you do something like that. That's usually what we see. And then obviously the other side of it is that. [00:05:00] We always go back to sensor integrity here. If your CO2 sensor for your systems, not very good. You can definitely chase your tail, thinking that you might have 1200 when you do only have 900.
[00:05:11] Seth: Or vice versa. Thinking it's too low and it's higher. It really comes down to efficiency and making sure that you cross that threshold of enough. For about the plant growth.
[00:05:20] Jason: Yeah. And, matching these inputs is a great way to optimize. You know your costs and plant growth. So if you can.
[00:05:28] Jason: Match those inputs with [00:05:30] your crop needs and you're going to be doing a great job. When we look at the basic principles of the photosynthetic equation are looking at. Water plus CO2 catalyzed by life. And so in air. He wants our light levels to be right on, on our CO2 levels to be right on per.
[00:05:48] Kaisha: fantastic. Thank you guys. All right. Paying bugs. Good luck out there. Mandy got some live questions
[00:05:53] Mandy: on YouTube. Yeah. It's popping over there. We're getting shout outs. Poppy grows. Give us a shout out. Love the [00:06:00] show. You guys are just amazing. The knowledge you give us is unbelievable. Oh, thanks for that.
[00:06:04] Mandy: And then iron armor had a question. What are some pros and cons on keeping mother plants in Rockville, say a Delta, say Delta 6.6 and a halfs. On a unit slab compared to cocoa five gallon pots.
[00:06:21] Jason: I'm going to point this one to you. I don't think I've ever
[00:06:22] Seth: seen moms in Rockwell. I definitely have. Okay. And typically, where we, where you see that kind of happening is when you're cropping your [00:06:30] mom's relatively quickly, you're getting one or two cuttings off of them. They're alive for,
[00:06:34] Seth: Far less than three months, usually even less than two, oftentimes. As far as benefits, If you only have one thing to order, that's always nice in your facility. If you're already using Delta 6.5 and unit slabs. Sure. That's nice and easy. You already have it around. It will allow you to, potentially steer your mom's a little more. And obviously if you have enough volume, you can grow up pretty big mom out of it.
[00:06:56] Seth: As far as long-term goes though. Neither media are really ideal to keep a plan in [00:07:00] for more than three months. So either way, that's probably looking at mom health, a big part of it is going back and knowing that you need to have good, fresh root growth. If you have too big of a media at all, it's going to be pretty stagnant. So even we look at Coco.
[00:07:13] Seth: There's plenty of people out there still having moms and pretty big pots, just because it's really easy to go water. Just by hand and not under underwater. But that can also lead to all kinds of different soil borne disease problems past, and then also inconsistency in your clunk crop because your moms are in [00:07:30] varying states of health.
[00:07:32] Seth: So in terms of which one's better. Really neither. It's more about what are your SLPs and how much do you like sweeping? And maybe another consideration too, is the fact that you see a little bit quicker. Change and things like pH Niecy inside a Rockwell. So if you have only one injection set up or one reservoir for, let's say your veg and your mom's.
[00:07:55] Seth: You might want to consider that too, thinking that okay, all my pH and dosing is going to be the [00:08:00] same between two media. So that simplifies a little bit of my process there.
[00:08:07] Mandy: Awesome. Thanks for that. Iron armor. Thanks for that question. I'm going to keep going down our list. Dylan wants to know. I'm curious about your take on encouraging plants with purple genetics to get as much color as possible. Like just temperatures. If so, when do you turn temps down day and night? Any other recommendations?
[00:08:26] Jason: So that's the propylene color is a. [00:08:30] Anthocyanin turn turning, showing its colors in the plant. I see that in blueberries, huckleberries and lots of other crops the day night differences is really a huge pusher for those I personally like to. Sometimes keep my day temperatures a little bit higher than I typically see with people. Just encourage as much plant growth as possible.
[00:08:49] Jason: Keep them. I have metabolism up and then I'll drop my At nighttime temps, almost to 10 degrees. I'm just trying to turn to encourage that. That coloring. As far as, when it happens. It's going [00:09:00] to be a little bit strain dependent because we also want to think about how those cues are affecting the
[00:09:05] Seth: plants ripening.
[00:09:07] Seth: Yeah, You really nailed it there. It really is mostly temperature dependent. And I think, like what you're just touching on Jason, that 10 degree differential. Is really important. If we're for humidity reasons looking at, Hey, we can't go below 68 degrees Fahrenheit because we just can't control humidity below that point.
[00:09:24] Seth: Then we might not necessarily be right if purple is the desire, not necessarily max TURPs. We might be [00:09:30] looking at running 77, 78, the data. And so we can get as much of a differential as possible. For overnight. But there's always, like anything. Appointed diminishing returns. So a lot of people would like to turn to that 10 degree differential in the last two to three weeks, just to ripen.
[00:09:46] Seth: You can obviously do it sooner. The sooner, the earlier you're running cooler temps, I guess to get examples, if you look at some outdoor plants I guess outdoor or it doesn't get shipped around as much as it used to maybe, but some of the same strains grown outdoors in Northern California [00:10:00] versus Washington for instance, are going to turn out a little differently just because we have a little bit different day and nighttime temperatures, a lot of places in Washington, it's just going to ride lower nighttime temperatures, even all throughout the summer.
[00:10:12] Seth: And we might see that plant have a super purple expression. But also all my get. Two thirds of the size, given all the other singe conditions. Just because that's been exposed to that cold for so long that it actually affected. How much metabolism the plant was able to accomplish during that growing [00:10:30] season.
[00:10:30] Seth: You want to get that 10 degree differential, and the earlier you push it for a lot of strands, the more result you're going to get on that. Purpling. But if you're doing it too early, like I said, that typically comes with a little bit of yield cost associated with it.
[00:10:45] Mandy: Awesome. Thanks for that. I was taking notes there. Kaisha, were you taking notes? Are you, I'm trying to bring out
[00:10:50] Kaisha: that color. Not necessarily, but I am taking notes. I don't really know what the color of my blink, my little ceilings is supposed to be, but I'm noting. Thank you. [00:11:00] Thank you, John.
[00:11:01] Kaisha: That
[00:11:01] Mandy: was just such a great rent breakdown. Awesome questions. You guys poppy grows, wants to know. I'd love to know some insights on organics when using salt as your base. I use crop salts and B and the rest of my inputs are all organic. I know I may not get a hundred percent of the benefits from it. But am I getting
[00:11:21] Jason: benefits at all?
[00:11:23] Jason: If we're running in a toilets media like Coco or Rockwool. We might not be seeing as much benefits [00:11:30] as the input of the costs for running those products. Important living soil and there's a good chance to tell him amount of organics are going to be happening. Using a synthetic is just fine. And living soil actually emerged pretty good. It's what I do in my garden at home. It.
[00:11:44] Jason: It might not be the giving me an organic product at the end, as far as production flavor, all of that living soil. You're probably
[00:11:54] Seth: in a great situation. Yeah. I think what it really boils down to there is a. Is [00:12:00] your soil actually still alive? In your, your typically soilless mixed media in your grow room. So like when we're looking at living soils, a lot of times we're keeping them in pretty, pretty specific ranges.
[00:12:11] Seth: And a lot of times, if we're in, let's say a one or two gallon pot, that's, an organic soil mix. And we're drying it down 20, 30, 40% sometimes potentially that might be going too far for the biology in that soil to kinda, go that route for providing full plant nutrition.
[00:12:26] Seth: One thing to think about though, is when you're looking at, [00:12:30] organic nutrients there's a wide range and a wide range of systems with how that works. So are we sourcing those nutrients just from an organic source? Is that why it's got Omni certification and theirs and is organic or are we dumping, molasses and compost tea into the soil to feed?
[00:12:47] Seth: The bacteria in there so that, just because something certified organic doesn't necessarily mean that it's going to have a positive or negative effect, but anytime we're looking at organics, especially if it is a. More of a living soil application, it [00:13:00] really does come down to.
[00:13:01] Seth: Are you feeding that soil? And is it. Is it still alive? Because if not, if you don't have enough media volume. Let's say it to go just organic. So that's why you're using salts. Again, you've you, a lot of that biology might be dead in there by the time you get very far into the rod. And at that point, if, even if he keeps supplementing it.
[00:13:20] Seth: If you keep supplementing and everything you're Rating dies immediately. You're not really going to get a good symbiosis with the plant. And necessarily get the kind of [00:13:30] benefits again, not necessarily any negatives, especially if you apply it right. But. Not guaranteed benefits. And probably hard to track unless you've got everything real dialed in.
[00:13:41] Seth: And some good sensing technology.
[00:13:44] Mandy: Awesome. Thanks for that. Lou had a question. I love utilizing a Roy. Aw. Do you guys have any recommendations for irrigation strategy? When transplanting a 12 day vege plant rooted in half gallon, Coco bags, two, a two gallon cocoa [00:14:00] bag when transplanting into flower room bags.
[00:14:06] Jason: What were the sizes again?
[00:14:10] Mandy: Half gallon, Coco bags into two gallon cocoa bags.
[00:14:15] Mandy: 12 day vege plants
[00:14:17] Jason: rooted in. Oh, we're probably just going to do another type of birding in irrigation.
[00:14:23] Seth: Yep. We're just going to. Hit it with some of those very sporadic, not sporadic, but sporadic in terms of once a day. Maybe twice a day [00:14:30] early on. And ideally have some sort of a sensor even take a load cell out and make sure you're getting an appropriate drive back, I would say about 20% of that media before you start to hit.
[00:14:40] Seth: An actual P one. Strategy on there. Yeah. And really
[00:14:43] Jason: when we say rooting in you're engaged in the strategy, that means that we're not getting back up to field capacity. Every day until we see that drive back over a few days to equal the amount that we're trying
[00:14:53] Seth: to achieve. Yep, we got it. Just slowly, gently introduced irrigation as the plant can actually take [00:15:00] it. And that's why being able to monitor your dry bag is extremely important in making that process efficient, reliable.
[00:15:06] Seth: Okay. And physically
[00:15:08] Jason: what's going on is obviously. Roadster, always going to seek out areas that have more water content. Obviously when we do put that back on there, we need to get some irrigation events into that topper block in order to one, keep the plant alive and encourage root growth.
[00:15:22] Jason: Another thing we're doing is get more oxygen in there. And then that water is going through seeping down, and those plants are trying to turn the fall, that water [00:15:30] through the
[00:15:30] Seth: irrigation. Yeah. Since we're coming on the topic too, if you're a, you do happen to be transplanting, something like a half gallon into a two gallon.
[00:15:38] Seth: One thing to probably pay attention to. And if you aren't already using these types of media, maybe move to it, but moving to a stackable pot situation or potentially cutting the bottoms off of those bags and just setting it on top of your two gallon. Rather than pulling that apart. And there's two reasons for that. Number one, gravity's working for us then.
[00:15:55] Seth: Our roots are going straight down and they're following the path of water and we can really stimulate that [00:16:00] root growth. The other thing. Is we're not moving a half a gallon of material out of the way to shove that half gallon of colonized root mass down in there. So we can really take advantage of that full two gallon pot, a lot better.
[00:16:12] Seth: If we're not disturbing yet. And you're, water-holding, typically. If you've got pre-fill bags. Most brands that I've encountered as best. If you'd actually, you hydrate them properly, be patient and don't get in there and break it up. That can mess with your consistency bag to bag.
[00:16:27] Seth: So just setting that on Papa there helps you keep you. [00:16:30] That pack consistency and water-holding capacity is uniform as possible across your plant population.
[00:16:36] Jason: And it's faster and easier. Some manufacturers have those smaller. Starter cubes are, or bags actually have a tear off bottom, which is super cool.
[00:16:46] Jason: And then just not of benefit, we're going to have just slightly less evaporation from the bottom. So it's easier to keep our humidities and our water contents in check.
[00:16:55] Jason: Work
[00:16:56] Mandy: smarter, not harder growers. Awesome question. I'm going to keep going down the [00:17:00] list. Peter wants to know. Shooting for a zero differential in stretch. Ellis T is at 82. Fahrenheit room temp is at 87 degrees Fahrenheit. What's the nighttime temp supposed to be. You guys have any advice?
[00:17:18] Seth: Your nighttime temp. With your lights off. Probably closer to that. 82 value, 80 to 82, where we want to at least surface tab, because without that radiant light any kind of radiant energy from the lights. [00:17:30] That Lee surface temp is actually going to be a lot more similar to the room 10.
[00:17:33] Seth: And that's how you'll want to dial it. Even at night. We want to keep a pretty consistently surface tab.
[00:17:41] Mandy: Awesome. Great notes. Be Tom wants to know. Secret plants has mostly opposite nodes, but after revenge it changes to alternate. What changed? What causes this and is
[00:17:52] Seth: there a way to prevent it?
[00:17:56] Seth: So that, that goes along with like certain stomach clonal, various era [00:18:00] mutations that happen, most plants when we actually go from Mike, let's say a seedling. To one to two generations of clones in. Typically we'll lose that opposite, bud formation and go over to alternate. So most of your growing populations out there have alternate bud locations.
[00:18:15] Seth: The Rivage plant, that's a similar thing where we actually are, We're going outside of what the plan actually would ever naturally do. And that's one of those side effects that comes along with it. Now, the exact genetic mechanism behind it. I couldn't exactly tell [00:18:30] you other than that's a phase change, similar to, what happens when we see hormonal didn't expression differences going from vege to flower.
[00:18:38] Seth: If you are revenging, my guess is that you did a Fino hunt. You found one you really liked, and you're trying to revenge that to get some clones off of. Like I said, I personally haven't found a strain. Where it retains opposite, but formation, after going into clonal propagation.
[00:18:59] Mandy: Awesome. Thank [00:19:00] you so much for that. I do have another question that just came in over on YouTube. K9 wants to know if you have plants that are using more water than others that are in the same zone. For example, a plant that is at 85% saturation and the other's at 50% saturation.
[00:19:16] Jason: What should I do?
[00:19:18] Jason: I usually try to take a step back and think about how can I improve my My uniformity. Across the plant population. And for the next run. There's not always a lot you can do in there except for maybe. Trying to go in and add some [00:19:30] irrigations or just run the plants that aren't drinking as much. Oh no. Just make sure that they're not getting too dried out. So really what I try to think about is in my processes where what contributed to this inconsistency is my cloning process dialed in, in which I'm taking the same size.
[00:19:47] Jason: Cuts using clean utensils, making sure that all my clunk blocks are saturated out correctly. And basically I'll make sure my plant growth is all the same. Is this due to some room? Inconsistencies, [00:20:00] as far as temperatures, humidities, white patterns Basically, just trying to understand where we're in the process. Did it cause this.
[00:20:08] Jason: In some uniformity issue, is it? Cause my drippers might be clogged on a few of the plants, then let's make sure we get those. Corrected otherwise you're always going to be fighting that issue.
[00:20:19] Seth: Yeah, I think that's where having graphs is pretty awesome. Especially time series data.
[00:20:23] Seth: You can look back and go. Yeah. Where did that deviation occur? What, what was going on that day? What's everything leading up to it. And [00:20:30] then Moving forward. How are we going to treat it? If we're looking like Jason said there's all these points up to them that we can identify.
[00:20:36] Seth: And then after you've gone through that whole laundry list, A lot of times we see just microclimates in rooms, really contributing to that. When that happens, you try to do as much quantification of that as possible. Go do go take your spot measurements, try to map out that gradient so you can understand it.
[00:20:52] Seth: And how it's going to affect your plants. And then, use that negative reinforcement from going in there and pulling drippers and doing spot waterings, [00:21:00] trying to fix different slabs and stuff. And all that extra labor has reinforcement to really dial it. And be on top of it next time. And, for some people, what does that turn into? We might end up at adding a lot of handbells and stuff to our irrigation system. So you can go out there and, do some spot waterings and bring everything back into alignment.
[00:21:17] Seth: For a lot of greenhouse growers, for instance, we've got a long rectangle with air going all the way across to. Version 1.0, your benches are parallel to your air flow. So you've got a gradient across it. After you've dealt with that long enough, you'd [00:21:30] probably have a light bulb. Aha moment where you go. If I just turn this bench 90 degrees, this whole irrigation zone is going to be in the same.
[00:21:36] Seth: Area along that gradient rather than having a granule along my entire self. So once you've identified the problem, I said just. It's tough because a lot of girls are just running and running. It feels like you're always understaffed and never caught up, but sometimes that negative reinforcement can be a good source of inspiration.
[00:21:54] Seth: To really do better next time. I hope so. At least, because if you're stuck in a cycle where you're. Really [00:22:00] chasing your tail. Eventually you should try to do something to get out of it.
[00:22:05] Mandy: Thank you for that. Awesome. Landon outlandish wants to know. When lights go off, how much should my humidity differentiate?
[00:22:16] Jason: Do you want. You want the humidity to always match the temperatures that you're going to be shooting for in order to achieve the ideal VPD. We're looking for. The smallest variations in DVD as possible. And so when we talk about, Maybe we've [00:22:30] got a day night temperature difference than we do need to drop our humidity in order to maintain a good VPV in the room.
[00:22:38] Jason: So that's on the long range. You don't want to. The shorter range. If we're talking about quick swings the smaller, the possible. The smaller, the better.
[00:22:47] Seth: Yeah. Yeah. VPD really is what we use as our guiding beacon. To try to determine what that humidity needs to be at that temperature. And actually, I don't.
[00:22:55] Seth: As your laptop logged in Jason. Yeah. Oh, [00:23:00] maybe not. So what. It, Jason can get it up quickly. Now we'll just share a little BPD calculator there. And basically, if your temperature is going to go down overnight, we've got to get that humidity down as well to maintain the same VPD value.
[00:23:14] Seth: A good example is trended not run into mold for instance, towards the end of your run. A lot of times we want to make sure that BPD doesn't go below at 1.0 or a 1.1. At 65 degrees, that's more like 43% humidity. 75 [00:23:30] degrees. We're back up into that, mid to upper fifties, which may be a lot more achievable.
[00:23:35] Seth: With your particular D dehumidification setups. To answer that too. It also depends on what your LEDs or your lighting situation is. And hid rooms. We typically see a bigger lights on lights off swing. And with led rooms, we don't have nearly as much input heat input from the lights. So we don't typically see quite as big of a humidity swing.
[00:23:56] Seth: But when we're trying to pinpoint, where we want to set our values and [00:24:00] set points, this is the type of gravel Villa. I hadn't looked at it. You want this? Yeah, go ahead and explain the case and tell him
[00:24:06] Jason: what you're doing. Sure. So let's say we're shooting for a five degree. At night, day death, maybe we're middle in the plant cycle.
[00:24:12] Jason: Obviously, we're going to be shooting for a VPD of Revlon linked to at that time. And so we can see if I'm a. Yeah, 81, 82 degrees for my daytime Tims, then we'll want my humidities to be up between about Say, 50 and. [00:24:30] 60. Percent
[00:24:31] Jason: Thanks. Sure. I did that. Yeah. 1.2. Ideally we'd be at, let's say 81 and a half and 52% humidity. And if we go to night, nighttime. Oh, he's doing a five degree differential and we're at 77 degrees at night and we can see, Hey, we didn't do anything with her. Relative humidity that our KPIs.
[00:24:49] Jason: Way too high or VPs too high. So we'll need to make sure that we reset that if we want to be a. One to 1.2. Now we're at 62%
[00:24:57] Seth: humidity. [00:25:00]
[00:25:00] Seth: Yeah. I always like to highlight to people that I'm talking to this about. A few degrees in temperature. Fluctuation can mean a pretty big difference in BPD. That's why, when we're playing with that, Later flower overnight, if getting down closer and closer to 65, even 63 degrees. Some, sometimes really the differences you might be able to achieve 68 and not 65. That's kinda the line. We're all trying to ride on that ragged edge of efficiency and.
[00:25:25] Seth: It's always better to approach it in a way that stays in the safe zone, rather than [00:25:30] trying to go to way too low of a VPD and having a lot of risk.
[00:25:35] Jason: Few. I want to use this VPD calculator. It's right there. APD to roy.io. I know. So at the back, we did a full rundown of how you can use it.
[00:25:43] Jason: Nice and interactive and you can even use a different temperature scale if you're in other parts of the world is in metric.
[00:25:51] Seth: Yeah, we should've had that up for the question earlier. Yeah, we could've
[00:25:54] Jason: just. That's the button. Cause I don't know metric enough to know what time. 26 to 27. [00:26:00] Degrees Celsius to Fahrenheit. Yep.
[00:26:03] Mandy: Awesome. Thanks for walking us through that. And yet you guys. That use the tools at your fingertips at your disposal. We do have that VPD chart that where you can basically calculate. For every phase of growth. Awesome. Thank you for that. We're still getting questions over on YouTube. So I'm going to keep going.
[00:26:18] Mandy: I are never wants to know. What are some pros and cons on using tap water compared to aro water for your nutrient mix. And what's the best way to determine whether it's more cost [00:26:30] effective to run, tap water,
[00:26:30] Seth: or a water. It depends on your tap water. Where do you live? What kind of water quality you seeing and what, it always starts with the basic PPM assessment, but like what are we seeing for PPM?
[00:26:43] Seth: Was it coming out at? How much is it costing you to treat if you're going to treat it that way? If your incoming water has things like at the emphasis area High iron.
[00:26:54] Seth: Oh, man, there's a whole bunch of things. You don't want it, your water, but there's also a lot of things that aren't [00:27:00] necessarily that bad of a situation to be in. Personally, I use tap and whitewater. I have over the years just fine. Where. Where Jason and I are out here generally. Pretty decent water quality.
[00:27:12] Seth: There's not like high loads of sulfur in it. No. I think the biggest thing we have is some carbon load and that brings our pH up to light around a seven. Coming out of a usually, so that's pretty easy to deal with, right? If we had some water that had come out of a soda areas and it was super alkaline, like [00:27:30] 8.5 or nine.
[00:27:31] Seth: Maybe we would not look at trying to use that at all. Really. That might be far too expensive to treat. And Solution, but. R O. Does have some of its own problems. It's totally devoid of ions going in. So you don't have any kind of interaction with Your salt's going in, that might be good or bad.
[00:27:49] Seth: And then. It can be expensive. However, If I was in. No, let's say. Somewhere near long beach. [00:28:00] In California. I would probably be looking at using R O because depending on where I'm at, I might struggle to get water that is. Quality that I want without anything that I don't want in it. And also coming in at a certain temperature.
[00:28:14] Seth: Water treatments, very important. And it really is. Situational basis. Some places you'd run into like higher chlorine contents in some tap water. And if that's the case, a lot of times you can just guess that off. You need to be able to let it rest for a day and a Rez with an airstone and.
[00:28:28] Seth: To get rid of that corny, but. [00:28:30] Boy. That's a really case-by-case answer there. Yeah.
[00:28:34] Jason: The really easy way is a few step process. First thing you do is to know for a water quality sample. They're very inexpensive and usually pretty quick to turn around. If you have low nutrient load in there and there's nothing bad, then you probably don't even need to change what type of
[00:28:51] Jason: Nutrient. Composition you're going in with, and you won't need aro. If there, there's lots of loads of calcium in there, then you might need to think about how that's [00:29:00] going to affect your nutrient composition and you might need to get a custom blend or for what you're feeding those plants.
[00:29:06] Jason: And then, if you just don't want to think about in nutrients at all, and you want to run a stock blend in. There's two too much ions in solution coming out of your well and do an aro and you'll know that. But the only thing that's really in your
[00:29:18] Seth: water is what you're adding to it.
[00:29:20] Seth: Yeah. And the, you. I like to highlight to people to this is one of those areas. Unlike a. Sending plant tissue samples to a lab somewhere or anything like that seems like it [00:29:30] might be scary. You can get pretty standard even at home water tests. A lot of the things that we're looking out for that are not good for plants are generally not good for people either.
[00:29:38] Seth: So that's also another way to put it. I used Los Angeles as an example there, but that's just because I know I've been to places where the hot tap water comes out hot. Basically no one in that area drinks it. Okay. That's a good starting point to say, maybe.
[00:29:51] Seth: Maybe we should really look into water quality.
[00:29:55] Seth: And it's worth your money to, and time to invest just that little bit in it that you could have. If you have a [00:30:00] fundamental problem with your water quality. And you can't figure that out. You can spend a lot of time and money chasing around different problems that are really a problem. You need a solution for the real problem. If it's water quality.
[00:30:13] Seth: Here we go.
[00:30:13] Mandy: Thank you for that. Poppy grows, wants to know. What's a good way to start the dry process. Should I do lower humidity first few days, then 60, 60, or what's the best? I've had bud rot, the last few runs and every dry sense. It's just been nerve [00:30:30] wracking.
[00:30:31] Jason: Oh, get some time series data, as far as what you're committed to, it looks like in the room. If you can't entertain your target humidities for the first few days, then I would usually try and start that room almost as dry as possible.
[00:30:43] Jason: And when you put plants in there, it's instantly going to go. Above your target, but you're doing everything you can. Long-term is invest in additional dehumidification. We see this quite a bit when we, it. Tax clients turned on to crop steering. They'll hit a run. That's just got way more.
[00:30:59] Jason: Plant matter, [00:31:00] then they're used to putting into their dry room and now they're having challenges keeping that dry room in, in, in tune for the right dry cycle. They'll see some of the issues that you have. So we do see this a lot. As you, if you're. Dry room is, under capacity or just act capacity as you start to improve the cultivation processes. You'll want to make sure that you're also improving the HVAC capabilities in your dry
[00:31:25] Seth: rooms.
[00:31:26] Seth: Yeah. And sometimes if you're, if you are running into that, like Jason [00:31:30] set up your D your capacity. Try to get sensors in there and evaluate how short you are though. Anytime you are going over that 60, 60 to our H and your dry room. That means you're under capacity at that point in time. So even if we, like we can try to start with the room as dry as possible, but that's going to get overwhelmed as soon as you fill it.
[00:31:47] Seth: So at the end of the day, it's either, expand that dry space. And your D your capability and. Probably, if you have sensors in there and you see it gone wild, be prepared, just go buy some rolling dehumidifiers or. [00:32:00] Thrill, Good. Quest on a car or something. I do what you gotta do to get it in there and maintain, but.
[00:32:06] Seth: I know personally I've been. And having been in an experience where we're doubling our yield over about two years that was a constant problem we ran into. And unfortunately the only solution was. Buying more dehus and then figuring out how we were going to power. All of them. And make everything fit in the room. It's.
[00:32:23] Seth: It's an unfortunate limitation, but I think compared to five or six years ago now, We [00:32:30] can look at you. No, no one had a great idea of what kind of yields they were going to get. And a lot of people were coming out of never producing more than, let's say, 30 to 50 pounds. I have a single indoor run.
[00:32:40] Seth: So now we have a better idea of What kind of capacity we can see off of a given square footage, given height and power limitations.
[00:32:47] Jason: Can we've got a feature in there. If you are using a Ray, you can enable the data type of absolute humidity. And just see how much more water you need
[00:32:56] Seth: to get out of that room.
[00:32:59] Seth: [00:33:00] Yeah that's actually super helpful, especially in the dry room when you can look and it, When you're thinking about how you're sizing your DJ, when any time you can get some kind of quantification. If you can even look at it, like, all right, I got X amount of cubic meters in there and there's X amount of grams per cubic meter.
[00:33:15] Seth: Started doing a little math grams to milliliters and it's not a perfect it's a good conversion. It's not a perfect representation because that's static, not dynamic, but you can get a rough idea. Hey, if we've got to get out. When he gallons of water from the air in this huge room. [00:33:30] Is
[00:33:30] Seth: It's a 50 pint. Is that enough capacity?
[00:33:34] Seth: No. So good
[00:33:37] Kaisha: to comment here, bill. I don't know if you want to unmute yourself, but he wrote bad. Rotten happened in flour. Drive off the off of
[00:33:43] Seth: VPD. And yeah that's another thing we see a lot too, as bud county. Again, that's. Already got it. Setting in, essentially. You just can't quite see it from the outside yet. And then once you chop it and hanging upside down in a nice damn dark room.
[00:33:57] Seth: You know that plant's got no immune system left as it's [00:34:00] dying. So that molds just going to take over. So yeah, trying to get it out and then also looking at, Going farther and farther back. Why was your plant in that? Healthy plants, always the best defense, right? Healthy plant and an environment that won't grow it.
[00:34:13] Seth: So you can track it back. That's another thing we see sometimes is Excessive flushing and a few other things that really cause a decline in plant health during ripening.
[00:34:23] Seth: Nobody. Yeah.
[00:34:23] Kaisha: You
[00:34:23] Seth: want to say something?
[00:34:26] Bilbo: No in the Arroyo. Hi. And knowing their Roy ecosystem, you [00:34:30] can Set tolerances. I know that in the new
[00:34:32] Seth: notification.
[00:34:35] Bilbo: Rollout. There's a lot more customization that you can do. So if you are seeing, but right. My hypothesis that it's likely to have occurred during a point where you were out of spec. For a certain period of time. It could be different with different cultivars, different rooms. So knowing your room with time series data,
[00:34:53] Bilbo: And then being able to set alarms that are real alarms, that you actually will respond to.
[00:34:59] Seth: Could [00:35:00] help you. I have more confidence going into your dry, knowing that
[00:35:04] Bilbo: you didn't spend too much time out of
[00:35:06] Seth: spec.
[00:35:08] Seth: Absolutely. Unfortunately, a short amount of time out of spec on anything. Can, really let basically plant disease, mold, things like that set in. And once. Once I've said, Andy, you're not going to get rid of it. Short of cutting it out of the room. And
[00:35:22] Jason: the shorter time that you're out of spec.
[00:35:25] Jason: The less likely that you're going to have these issues. So there's. We [00:35:30] may need many of cases where we hear from clients that because of a quick alert, they were able to respond to. Those parameters being outside of the ranges that they need. And then they go in, sometimes middle of the night go fix the problem and they know they've saved quite a bit of product from being ruined.
[00:35:47] Jason: And also on that. When you get into harvest analytics, you can take a look and it'll tell you how much time. Yeah. That crop's been outside of the target ranges. And so if you're trying to compare. Run the turnout. Awesome to run. That [00:36:00] was maybe lackluster. Go look and see if it was due to a time out of spec.
[00:36:05] Seth: Yeah. And you. Just covered all your basis too. If you're in a. Relatively sealed indoor environment. Make sure it's actually sealed in that. You're filtering your incoming air now. Where are you at? Are you in an agricultural area? Because of, so you're going to see a little bit more plant diseases. It turns out a lot of crops share those.
[00:36:22] Seth: Cover your basis, make sure everything's clean and again, check your plant health and don't there's. It's going to be hard to pinpoint exactly where [00:36:30] it's at because the dry room is like the last part of that phase. It could be something as simple sometimes as not understanding that your dewpoint up at your ceiling is different than your do point down where your plants are. So you're getting condensation on the ceiling.
[00:36:42] Seth: Dropping down on your buds. You've got buds that are just soaked, but Hey, your environmental sensors say it's fine. At five and a half feet off the ground, right? Where your canopy side.
[00:36:52] Jason: Thanks for time and in Bilbo. Yeah.
[00:36:56] Mandy: So my love is succession. Oh my gosh. Yes. Thank you for bringing that up. Our [00:37:00] notification center did just get a whole new refresh and yeah, you have more customizability and that visibility really does help. I didn't mean to cut you guys off. If y'all wanted to add something.
[00:37:10] Mandy: I love the notifications. All right. We are. We're getting our questions. So we wants to know. When you think a dissolved oxygen generator, what PPM would you recommend feeding in flower at?
[00:37:24] Seth: I'll be honest. I haven't messed with it. Dissolved oxygen generator. Oh,
[00:37:27] Jason: I've definitely seen you. Some of those. [00:37:30] Err bubblers and her nano bubblers And all that stuff, as far as getting you. Some amounts of dissolves auctions. I actually haven't. Done much recording of what those numbers are. I think typically more dissolved oxygen is better. I don't know that you can get too much and that's why, there are systems like nano bubblers where they're trying to.
[00:37:48] Jason: Expose as much surface area to the oxygen. Gas is in solution. There. So our apologies. As far as PPM. I don't think I'm in a position to recommend. What's just right. [00:38:00]
[00:38:00] Seth: Yeah, I think when you're looking at that too, I know one thing and in. Like we could probably adjust and I looked hard enough to find it.
[00:38:08] Seth: Theoretical optimal PPM, right? I'm sure. If we actually looked at just some sales literature, we can see what people are really looking out for it for that. But one thing to consider with the enrich oxygen like that is. What are you going for? And what is your system like? If you're in a deep water culture system where we're running, let's say that.
[00:38:25] Seth: A big nursery. We've got all these huge moms in deep water culture that we're wanting to keep us [00:38:30] fresh. We've got all this shared media essentially, cause we've got hundreds or thousands of gallons of water. That's going around the facility getting recycled. That's where we want to make sure we have a super aerobic environment and we're not,
[00:38:41] Seth: Being at risk of infection. If you can store your water, out of light, in a very reasonable temperature, sub 70 degrees, and you're in a drip irrigation situation, as long as you have a general airstone in your reservoir. One of the things that happens is when that water comes out, it's actually pulling oxygen into the root zone. So [00:39:00] we're not only relying on the OD the dissolved oxygen in the water.
[00:39:03] Seth: We were also using physics to help people. Watch David as well.
[00:39:09] Seth: Awesome.
[00:39:11] Kaisha: Some of this.
[00:39:14] Kaisha: What's that. You want to speak to your comments on this?
[00:39:18] Seth: Back to laminar airflow.
[00:39:21] Kaisha: Yeah. And dissolve
[00:39:22] Seth: oxygen. Why was, it was more of a question.
[00:39:26] Bilbo: As I sometimes lose my train of thought as well.
[00:39:29] Bilbo: [00:39:30] I know that facultative arrow is can. Be a
[00:39:34] Seth: factor in high dissolved
[00:39:36] Bilbo: oxygen content. Anything else is. There's a certain balance that we
[00:39:39] Seth: want to hit. I use a.
[00:39:42] Seth: An agitating. So on irrigation, a pump
[00:39:46] Bilbo: comes on that agitates the fluid. I would say accessibly and
[00:39:51] Seth: attempts to inject your more oxygen into the fluid
[00:39:55] Bilbo: that's. As far as I go, I'm not monitoring or P.
[00:39:59] Bilbo: [00:40:00] Basically, because if I continue monitoring more things, I'll become obsessed and probably have another
[00:40:04] Seth: paralysis.
[00:40:08] Seth: Oh, RP, that's pretty important. We were looking at water quality and how easy it is for different microbes to grow inside of it. Yeah, that's basically what we're looking at. A good reference guys as we grew up. Outdoors. We're all these plants come from. We grow them in mud, essentially.
[00:40:21] Seth: It's just what dirt. If you go back and look at other industries that rely on heavily oxygenated water, such as like the fish hatchery industry or aquariums, anything [00:40:30] like that, they're typically using just. Like I said, bill buck, essentially an agitation. They got a reservoir with a waterfall above it.
[00:40:37] Seth: And that water tumbling into the bigger Raz is generally oxygenating everything they need to, or they'll run through. An agitation chamber, which is just a cylinder full of all kinds of different blades and vents. So it tumbles the water around as it goes through it.
[00:40:51] Jason: Yeah. To answer your question. ORP is related to a dissolved oxygen. They are different.
[00:40:57] Jason: Dissolved oxygen is just the amount of [00:41:00] oxygen. As that is in solution in the irrigation system or batch tanks or whatever, and then oxidation. Reduction potential or P is a whore. Water
[00:41:12] Seth: only.
[00:41:14] Seth: Yeah. How easy is it to grow things in there. Basically.
[00:41:22] Seth: Let's say I had a bunch of good and bad bacteria. That
[00:41:25] Bilbo: was potential in my facility due to.
[00:41:28] Seth: Cleanliness different [00:41:30] solutions. Environment, the outside, outside contributing factors.
[00:41:35] Seth: How I'm
[00:41:35] Bilbo: linking it together as if I. I have a bunch of good bacteria that are going to do better in a more aerobic environment. And I do have some
[00:41:44] Seth: Higher or P potential to reduce that box sedation potential.
[00:41:49] Bilbo: As its namesake.
[00:41:51] Seth: Isn't it then. In a balance of the two to maintain a certain
[00:41:55] Bilbo: ORP and maintain a certain level of dissolved oxygen, regardless of our pumping [00:42:00] ability
[00:42:00] Seth: or injection of oxygen.
[00:42:03] Seth: Yeah. At the end of the day, you're absolutely right. We do have good bugs, essentially are good microbes that work with us and in aerobic environment. And that's also, If we go back to, like, when we're talking about organics and living soil, that's also part of why. It's very difficult to maintain those systems is because we're looking at, fairly narrow ranges to maintain that balance. Sometimes.
[00:42:22] Seth: And keep what we want to keep alive and what we want to keep dead. Dead. So the best we can do is try to get, A simple solution to keep [00:42:30] that oxygenated. And then also realize that, when were. We've got something in a facility like that. You're like, Hey we've got few cerium in here.
[00:42:39] Seth: Any time you have anything like that, you've got to be on a constant journey to find the point of infection. And start to treat that as well. You can If you've got contaminated water, let's say. You can get so far with basic water treatment, but at a certain point, You probably need to go to a better filtration system. If you just got water that.
[00:42:58] Seth: Your treatment system isn't handling, you [00:43:00] can only dump so much of any kind of chemical in there before we're at a concentration that's affecting. Plant health or throwing something else off in our water.
[00:43:11] Mandy: Awesome. I love this discussion. Oh, my gosh. We are like really getting close to the end of the show. So I'm going to keep going down our list. Landon, the outlandish wants to know. Have you ever had a plant start with three? I'm going to say this word wrong.
[00:43:25] Mandy: oh my gosh. And then start with two tops, zero training, [00:43:30] minimal environmental stress. And also tell me how to say that word.
[00:43:33] Seth: Please. Oh, you're pretty good. Coddle even. Personally, I've never seen one start with three. I've had them fused. But that's super interesting. I would want to watch how that plant definitely flowers out.
[00:43:46] Seth: See what it does. Sometimes though you can also get multiple embryos inside of a seed. So that could be part of what's going on too, is you actually do have essentially two plants. That are growing together somewhat as one. [00:44:00] So cool. Probably not a trade that you're going to be able to get passed on in seed or in clown, unfortunately.
[00:44:09] Seth: It's kinda like when you got to Like when you ate your twin or whatever. How does that work out?
[00:44:15] Jason: How did people don't have two headed people?
[00:44:17] Seth: No. Like when you just like your pinky is all you got. Rent or whatever.
[00:44:23] Mandy: I've seen a, like a strawberry that looked like it was like two and three strawberries, fuse together, like that. I don't know if it's separately. Yeah. [00:44:30] Interesting. Okay. Good questions over there. Diane also had a question. Y when we increase our VPD in the last two to three weeks why does that make the plants drink more? And will that make us water them more?
[00:44:45] Mandy: Let's see. I'll start
[00:44:47] Jason: there. Okay. I'm at. Depends how much higher you're going with your BPDS. Usually, once these plants mature, Like 1.2 is ideal. Even towards the end of our, even in [00:45:00] ripening. I'll be in at 1.2 is, is ideal. That being said a lot of times to parole prevent mold mildews if we don't have a perfectly ideal airflow in there.
[00:45:09] Jason: We don't have a really well controlled environment. Or we just can't keep our humidities down low enough to match some of those. Then we've tried to push it up. As high as possible. It is. As high as possible. Like 1.4, maybe 1.5. He really had issues. In some of your cycles.
[00:45:26] Jason: If our drinking more than. Then Evan. Some more [00:45:30] water. But typically actually If we start getting our VPs too high. Her still mates are going to start closing up to prevent that plant from drying it out. And so we'll actually see just a slight. Loss or site slight decrease in the amount of.
[00:45:43] Jason: Transpiration of.
[00:45:45] Seth: Yeah. And that's a lot of things. One thing to remember too, is this is all dependent on what your actual leaf surface. So it depends on what your light source is doing, how hot the actual leaf surface is. And the simplest way to think about it. Not knowing like for me, not knowing a bunch of other [00:46:00] factors around this question and your particular grow.
[00:46:02] Seth: Is If we look at VPV and we think about a plant as a straw. And the era, second things through it. The higher, the BPD up to that certain point, like Jason said, once we hit like an actual lead VPD of above 1.4, 1.5. That's when we start to see the Stamets losing efficiencies starting to close up, but essentially.
[00:46:22] Seth: There's pulling on the the plant a lot harder. It can pull more water faster because there's more energy potential helping that water [00:46:30] move upward through the plant.
[00:46:34] Mandy: Great advice. And yes, we do have an article that goes all over VPD. So that's over on roy.io. That's in our knowledge base articles, you'll find over there. And I'm going to go down to Holden child's question. His crops during possible using a soilless mixed with peat, perlite, and Coco. If so, do you have any tips or suggestions on applying crop steering to a soilless media versus straight Coco?
[00:46:59] Jason: [00:47:00] Yes, pretty much all the tactics are still going to be working for a blend, like
[00:47:04] Seth: you mentioned. Yeah. Okay. So came on the market because a Piedmont is not the most environmentally friendly production. It takes a long time to regenerate those peat bogs. So Coco is a, basically a straight up replacement for peat Moss in the market.
[00:47:18] Seth: And otherwise, you're just looking at the original soil list mix. Before we were. Before Coco became a hot word or Rockwell, yeah. Listen to back episodes of the show. There's plenty of [00:47:30] advice on what kind of irrigation strategies you're going to want to apply. And then.
[00:47:33] Seth: Get yourself a sensor and see what your water contents looking like? I would say maybe one of the biggest struggles you'll have is make sure your pots are all packed pretty consistently. You know if you're, if that's what your mix is, my guess is your hand potting. So just try to make sure you're doing.
[00:47:47] Seth: No. Dotting your I's crossing the T's. Taking care of things.
[00:47:55] Mandy: Awesome. Thank you for that. Lou wants to know. I [00:48:00] found three. Three quarters seeds popped off a cultivar. Have very geisha carried through cloning from seed mother. Have you seen true, very gated plants flower
[00:48:11] Jason: before.
[00:48:13] Jason: I've seen variegated plants flower before. Absolutely.
[00:48:18] Seth: Yeah, yes. Is it a good or a bad trait?
[00:48:22] Seth: It's cool. It's interesting. When you find it out there in the grill room. If you run a big enough population of plants long enough, you'll definitely see some interesting [00:48:30] summer clonal variation like that. One of my favorite ones. Aside from seen some variegation is Like the polyploid nugs. It's where you get some chromosome dabbling, like just in one branch of the plant. So you'll have just, like you said, the few strawberries, Mandy, two fuse nugs.
[00:48:45] Seth: Or three sometimes.
[00:48:48] Jason: Just to. Anecdote because Kim dog is one of my most favorite strains. We had a Kim dog. Our cuts had a very consistent. Half leaf irrigation. So [00:49:00] one half of one. Leaf. The little thing of the flags of the leaves would be barricaded with white and it was pretty consistent throughout the crop. And one of the.
[00:49:10] Jason: The first, really big installs I did for a Ray was I was in the room and. Installing some sensors and I saw that variegation at night. Hey is this Kim dog? And he's yeah, it's Kim doc.
[00:49:21] Jason: Thousands of miles away. They had probably a similar cut from. Up the chain.
[00:49:27] Jason: Oh, my gosh.
[00:49:28] Mandy: Amazing. I love that. [00:49:30] Great questions, everyone. I think we have a couple more minutes and Kaisha, I think you have some Instagram questions I'm going to pass back to you.
[00:49:37] Kaisha: Fantastic. Thank you, Mandy, on and popping today, even though that's not wearing any shades. We are blending y'all with science. So good.
[00:49:44] Kaisha: Okay. We got this one submitted here. Leland Rogan. Legends. What is your strategy for calculating how much CO2 to put into a room? Currently our flower rooms are only getting around 800 PPFD at canopy height. [00:50:00] And around 1400 PPM of CO2. Do you think this could be causing some issues?
[00:50:05] Jason: Cheers.
[00:50:08] Jason: If 800. The light levels is as much as you can get. Then no, you could probably drop your CO2 injection a little bit just to optimize. Input costs, but. Having the CO2 up at 1400. And your life today to a hundred, isn't going to hurt
[00:50:22] Seth: the plans. Now you're totally in the safe zone, probably just.
[00:50:26] Seth: Around some change app here and there. [00:50:30]
[00:50:31] Seth: Oh,
[00:50:31] Kaisha: all right, Leland. Keep us posted. All right. I got another question here from someone who wants to talk about CO2 enrichments. So my simple question is, do we need to turn our CO2 off at night? And can we connect the regulator to the lights timer, to both go on and off at the same time. Yes.
[00:50:52] Jason: Yes, it is good to turn your CO2 injection off at night. So during the day plants are transpiring. So they're using [00:51:00] up CO2.
[00:51:00] Jason: And at night, Lance you're actually respiring. So they're actually going to be. Releasing some CO2. Basically when we're going through photosynthesis in the day, we're building sugars at the plant is going to use for growth. And then at night during respiration, it's actually going to be using some of those sugars.
[00:51:17] Jason: Per plant growth.
[00:51:19] Seth: Yeah, the, you also are not gonna use any CO2 in the room at all. So if you do an earnest situation where you can't trust your timer to turn off via the sensor overnight, cause it shouldn't hit your set point. And turn [00:51:30] off if your set point was like the previous question, 1400.
[00:51:33] Seth: Your site, your Your controller should turn it off. However, if it's not connecting it to a light switch might be a good idea. I would definitely check with your specific controller manufacturer. Read the instructions. And see if it defaults to off, when you cut power to it. Probably just ensure a little bit of proper equipment operation.
[00:51:55] Kaisha: Awesome. Guys. Alright, good luck out there with that one. And to keep it [00:52:00] moving here. And just a reminder folks, we got a few more minutes. If you have a live question now, is your chance. Solomon king of Kings Rogan. I'd be interested to see the difference in water holding capacity. Between the different grades of cocoa Corp that your sensors are used yet.
[00:52:15] Kaisha: I prefer a much more generative mix with larger Childs, like Rococo. I find that you'll have better irrigation uniformity. The more often you irrigate. Who are that's Coco peat, smaller fibers and vest tends to be way too whack. And because of this, you don't want to irrigate [00:52:30] often causing uniformity issues between beds.
[00:52:33] Kaisha: I wanted to see if you saw this on the data as well.
[00:52:36] Jason: Absolutely. So usually Or most mixes for manufacturers. There are some that are blended that kind of fall in between, but usually we'll see. Water holding capacity or. Field capacity for the chunkier stuff, right about that at 45% water content range.
[00:52:51] Jason: And then the stuff with the smaller pit, the ground up stuff. Coffee, ground cocoa with QL is a, usually a purchase 60 to 65%. [00:53:00] And as far as which one, I prefer, it comes down to what size media that I'm using. So if I'm going to one gallon cocoa yeah. Gonna be trying to grow big planets. I'll definitely want to be at that 65% water holding capacity. Cause I'm going to have some early massive dry backs. And since I will be at that one,
[00:53:16] Jason: Or that. 65%. Water-holding capacity. I can still irrigate quite a bit because I've got a big plant. That's using a lot of water. So yeah, great point, but what you're saying there. But if I wanted to gallon a lot of times It's better to be at that lower [00:53:30] water-holding capacity.
[00:53:31] Jason: So that we can irrigate more often.
[00:53:34] Seth: Yeah. And, just depending on where you're at and what your experience is using something like the Rio Coco, it's gonna be a lot more just like you described it. Similar to running, say a 70, 30 cocoa for lifeline. Probably think about what you're comfortable with and how tight you want to live right in the line, a, a.
[00:53:48] Seth: Ah, two gallon Rio, Coco pot. With 45% water. We'll ask these gonna be,
[00:53:53] Seth: Less. I'm going to say efficient, but it's going to hold less water than a two gallon that holds 65% water. That's great. [00:54:00] So we can, like Jason said, we can affect. You get a bigger spot, bigger plant out of the smaller pot with the higher ratio. However, we gotta be a little more careful about our routing and procedures.
[00:54:10] Seth: And just watering in general, a little more precise. It's a lot easier to run a one gallon. Hi water capacity, cocoa bag. With the sensor than it is to run without it. That's prescribable. All these say that. And then if your irrigation system has any kind of unreliability or anything like that, that bigger pots [00:54:30] usually going to give you a little more buffer room.
[00:54:32] Seth: On potentially missing a watt afternoon irrigation or something like that. You. And anytime we go down to a smaller and smaller volume of water that gives us the opportunity to irrigate more and more for a given size plant. But then everything gets to be a little bit more technology dependent and we're already pretty technology dependent. So anytime.
[00:54:51] Seth: We can put some redundancy in the system and, Had it. And so mistakes either, Don't happen or if they do we're prepared, then it's okay. I'd always rather have a.[00:55:00] Less high-performance looking grow, but never have a plant wilt on me. And then I would run it right at the red line all the time and then have a power outage or some equipment failure. And then I lose a whole batch or something like that.
[00:55:14] Jason: Yeah. And let's just do some quick math here. If we've got a one gallon. Coffee, ground cocoa. If you will. And our holding capacity water or. Field capacity or water content is 65% and we have. Point six, five gallons of water [00:55:30] that can be helped in that media. Now if we're in a two gallon of chunky Coco.
[00:55:34] Jason: Then we'll have, water holding capacity of 45%. We'll be a 0.9 gallons of water in that substrate. Field capacity.
[00:55:44] Seth: Yep. And that's, if you are thinking about switching media at any point in time, It's really good to take that into account when you're trying to compare, side by side, do I run the Rio one, Coco. Or Rio one gallon versus the Dutch plant in one gallon, even though I'm running into [00:56:00] different water holding capacities.
[00:56:01] Seth: I want to really take that into account when I'm looking at the size of the plant, I hope to grow.
[00:56:07] Seth: Cause if we go back to let's say at the classic five or seven gallon pot, That was approaching 50 50 Coco perlite. Or water holding capacity is what Jason, 38% or something like that. 35. It's just, you really don't actually have that much water. In that space at that point. But you're very well aerated and you do have enough that you've got a pretty big buffer. You [00:56:30] just it's just, if we grew plants,
[00:56:32] Seth: In a five gallon, the way we're growing them in a one gallon, we'd have 12, 15 foot tall plants.
[00:56:40] Kaisha: Wow. Yeah. This episode was a wealth of knowledge. Amazing. Mandy, before we wrap it up, anything else on YouTube?
[00:56:48] Mandy: Oh, my gosh. Thank you guys for all the questions. All the shout outs. Oh, my gosh, it just popped off over there. So such a good show again. Thank you.
[00:56:57] Kaisha: Yeah, so good. All. Before we go, we're going to end this on [00:57:00] literally a high note. We are proud to announce that the rice wagged shop.
[00:57:04] Kaisha: Just went live. You can check it out@aroyal.shop. And in the next few days we're going to be releasing special collection shirts. Just like the one stuck where right now, so y'all want to head over there and get fitted. This is, this blindness is available to you now. Get some of that.
[00:57:21] Kaisha: All right. So the Jason, anything else before we wrap it up?
[00:57:25] Jason: I've great day.
[00:57:26] Kaisha: Yeah. Excellent. All right. Thank you Seven days and for [00:57:30] another excellent episode break conversation, Mandy, thank you for your amazing co moderating skills and producer. Chris, thank you for everything you're doing behind the scenes. We appreciate you. Thanks to everybody. For joining us for this week's episode of array office.
[00:57:42] Kaisha: Office hours. We do this every Thursday. And the best way to get answers from the experts is to join us live. If you're ready to learn more about a web book, a demo on a Ray. Dot IO. Our experts will tell you all about how it can be used to improve your cultivation production process. Got a topic you'd like us to cover on apple sours.
[00:57:58] Kaisha: I was questioned at any time [00:58:00] via the rap. Drop your questions in the chat or on YouTube. Send us an email at support dot Arroyo at I made a group back home. We're a DMS. We. All the socials and want to hear from you after the show we'll send everyone in attendance the link to today's video it'll also live on the Arroyo youtube channel like subscribe and share while you're there see if the next session thanks everybody