I just aquired one of your PAR meters and it makes it soooo much easier to adjust light intensity and height above the crops. It eliminates the math errors w lesser meters that must be converted. Thank you Doc, one of if not my most important tools.
I really enjoy your interviews with Dr Bruce, I've been growing for 10 yrs or so and learned most of what I know by making mistakes from bro science, now my grows are are solid but I still watch your vids to keep up with new science THANK YOU for what you do
Don't completely discount bro science and learning from your mistakes. My most favorite bro science guy was from my hometown in Brantford Canada. He was a deaf/speech teacher named Alexander Graham Bell who invented the telephone. There are some New Yorkers who claim he got the idea from an Italian immigrant who had a working phone in his home and was visited by Bell but it's never been fully proven. Bro science is great especially when people like Dr. Bruce share the real science so we have knowledge to work with. I created a huge pest infestation a little bit by accident in my outdoor grow shed with my first crack at RWDC and it was a ton of fun learning all the different and even experimental ways to kill them.
So wait to give red +far red till done stretching then I can put them asleep and wake plants up with red +far red during flower I think I reading this right.😮?!
@@keithgustafson7786 ya u can I mean I use reds in veg now I do crypto chrome signaling for sunrise and then run Emerson for the rest of the day staying below 10%overrall ppfd of 660nm so plants don't bleach...been doing end of day reds for years now even run it in veg too
I was just thinking about you today when i was thinking about what id love to do in life! And then i hop on here and immediately see you and a new video! Love it! Thanks for all your info and work! 👊🏻🤘🏻
I'm sold on intra canopy lighting after running it recently. The overall quality went up, and so did the yield. The upper canopy was getting 700-900ppfd of a red leaning light with far red. The under canopy was getting up to 200ppfd of a blue leaning light. The lights under the canopy stayed on the full 12 hours a day from day 21F onward.
@concreter6832 no there not, i used the Mars Hydro VG80 bars under the canopy at pot hieght. They are a visibly blue light but full spectrum. Above the canopy I use mars hydro TSL2000'S. Which are visibly orange with plenty of red and far red.
In a 2x2 or 3x3 space, it is not about economics always. Its entertainment. Second comment is. Why don't you hook a dimmer up to a C02 meter and select a preset over canopy height based on approx DLI levels relative to current C02 supply? Then it can self adjust to be even more economical for the other half.
yea my best grows are fall to winter in Arizona. starting them when its still warm and then finishing during december or january is the best grow season for me (indoor). inside the house it gets to the low 60's for flower which is great for the anthrocyanin production.
Thanks for this episode. Always good to see Master Bugbee. 24:10 This section is nuts. I always start my seedlings low then move them, and they get that odd blistering/discoloration look on the leaves. I guess I should just let the things pop under full power. Think I might test that today. I might be overthinking this one. 51:19 This section on lighting under/in the canopy is pretty good. As a scrogger who sometimes deals with tight node spacing, I use the mylar side of old grow tent fabric to cover the tops of milk crates I use as platforms acting to essentially raise the shiny floor of my tent to be just under my scrog's canopy. Really brightens it up a bit and wont cost you much. The crates keep the circulation adequate. You could probably use something even better but I had the crates. It will also confuse the hell out of any aphids should you be so unlucky. Hope everyone is looking forward to spring. Good luck to everyone especially you outdoor folks.
same on the seedling light sensitivity... perhaps seedlings were never innately sensitive to light, but merely adapted to the low light conditions they were started under, and then moved to a very different intensity.
@@andrewstephens8790 I was talking it over in a group today and this seems to check out. At any rate, i have 35 bag seeds in just to see how it goes. might have to ditch the lit seedling dome for a xs1500 pro or something like that.
I think allot of this info only applies to hydroponics. As someone that starts in supersoil and runs in living soil I have found time and again that anything over 800 in veg causes leaf stress (turning) possibly because of the overall water uptake. With seedlings I don't reduce the light intensity as much as increase distance, bringing the light closer every couple days essentially going from 300 to 700 over a 2 week period. Seems to work well. 👍
In soil with only organic inputs I've found that anything over 800 in veg causes leaves to turn, and actually stresses the plants. Good info in general, but also important to keep in mind they are referencing very specific grow methods.
Great episode. Oregon CBD has triploid cannabis breeding dialed in. They released their 1st triploids in 2021 I believe.. Now they have released triploids for Type 1 cannabis as well. They hired an experienced PhD to do the work.
I love it when Dr Bruce spills the beans and this round was an absolute food fight. 🥰 Thanks Shane, Thanks Dr Bruce, your work is very much appreciated.
I bought P.E. thrasher spore syringe and knocked up some grain yesterday, along with making up some liquid culture with it. Im using monotubs, have some hygrometer and thermometers consistently monitoring. Ive done a lot of research but its definitely more information than i thought it would be. Very fun, and i figure if i can get any of these going then maybe il be downhill from here! This is my very first time btw so fingers crossed ❤
Some advocate for a 6C/10F temp swing between day and night during flower. Is 17C/63F night and a C23/F73 day a reasonable shift or are we better off opting for a smaller shift, perhaps a 2C/4F shift like 18C/64F night and 20C/68F day for example? Dr. Bugbee's emphasis on temp is an eye opener!
True. It is not that easy, even if you are here with much experience... the education requirement is pretty expensive and a longer degree study than most growers will ever get or be able to afford at his college(or most colleges)
Yup, that’s what I do. I don’t use a dome. I use high intensity light right away for my seedlings but I keep the humidity in about 50% and the temperature is about 26 and they’re loving it.
I produce my Co2 with an Fzone fish tank generator for 100 bucks. I fill it with industrial grade Citric acid powder and bicarb, used by cleaning companies. 10kg of each cost me 65 bucks and last me about 15 weeks. in my 4x4 in a 10 x 7 lung room. at 900 - 1000 ppm. I do have to reload it every couple of days. As I found doubling the quantity didn't double the time I got from it. so reduced to 200g of each. Controlled by the IAQ Monitor Controller with solenoid and lights out cut off function. 140 bucks. I have to set my dehumidifier in the lung room at 10% below the desired tent RH in order to get the balance..
Works but does not last long... most use co2 scuba size tanks, which do not last even a week, buddy... i got paid to pickup co2 tanks before in Denver every weekz heh... many tank refills. a mushroom tent is more efficient and you get product... buildAsoil jeremy proves this (that channel and this one is the top no nonsense for homegrowers to get correct information without the salesman biases)
@@dertythegrower AS This got bumped, I'll add some more details. The point I was making in my OP, was that 2 tubes purchased from amazon arrive by post and last me 15 weeks in my sized tent and lung room for 65 bucks. No going out to fill tanks. As it is now filled in house every few days.. It's worked for me for 4 years. And as I have tweaked the airflow, I have got it Running in a wave of 1100 - 1300ppm in late veg and flower. I run it at 600- 800 in early veg. Adding 3M silicone door tape to all four sides. gave me the seal to run at 1200, and still be economical. Cost was important, As I need to run dehumidifier in flower. But the bunus, is that it bushes the air to the area I want it to, which increases the efficacy of my Co2 circulation. I'm a home grower, so not suggesting this is good for fully automated run. As I do Go in the tent at lights on, to give it a natal boosts. And to tend to the plants and water. Which can raise it up to as much as 2000ppm which takes a couple of hours to drift back top my trigger point of 1100. But it works for me. And I'm actually quite proud of the way it works for the price. One more thing...I recently discovered that the internet recopy of 300 g of citric and the same of bicarb, into 450ml of water, is wrong. the correct formulae is 230g of anhydrous citric acid and 300 bicarb into 500ml of water. Good news as the citric is the more expensive of the two.
Humboldt Seed Company are working with Triploids, Shane. I'm not sure if they're publicly available, but I've seen video of the plants, and they explain how they do the work. Very interesting work they're doing!👍💯✌️
What the industry needs is a chart like a phase chart. including feed concentrations, dli, co2 and most importantly temperature(plant vs atmos). there balance and relationship is obviously of utmost importance and i would dream of being a golden ratio for any plant due to finding a plants optimum dli and therefor optimum co2 and feed rates. As my machinist father taught me, it always comes down to speeds n feeds.
I always had issues with nutrient deficiency. After listening to a podcast with bruce where he said he pushes EC to 6+ during first 3 weeks of flower with elevated Co2. I pushed EC to 3 for first 3 weeks and there is almost no deficiencies. Bruce is a hero
Great show again, thanks Shane and Dr Bugbee! If an autoflower is under 24/0 lighting but still receives a DLI of 60, will the lesser intensity needed have any effect on quality?
On this topic, where myths and pseudo-science from armchair experts abound, it's always a privilage to listen to reliable, evidence based scientific fact. Your channel and of couse Bruce, always deliver. Thanks!
Should I supplement if the ambient CO2 level in my lung room is between 800 and 1200ppm? I still don't know why it's so high in there, but I monitor it constantly and that's where it is, the rest of my house is ~400ppm. Amazing video, I'll be watching more than once.
Great info! Shane could you please spec bar lights: 1) Phillips greenpower toplighting linear 2.2 2)Fluence VYPR 3p 3) ThinkGrow model-I plus All with dimmers. I appreciate all your efforts bringing technical knowledge to the bro-science knuckle heads. PEOPLES
thx! i learned a lot and still got so many questions. is there a gentic or strain which is the most effective concerning photosynthetical datas? what about outdoor green fingerprint; input/output? what might be the role of cannabis in a green transformation?
I found mycrobal rock dust and frass to be so good i never check anything but leaf health ever since i started it. And DJ Shorts 11 on 13 off on flower cycle does show different phenotype expressions.
I'm new to growing and I'd like to know using the Far Red and Blue UV. How long is it applied for the day? Is it only like an hour during 1st light and 1 hour for dawn or all Day through Veg and flowering? I'm doing AutoFlowering..
Wow a DLI of 100 on a controlled cannabis plant. That's so bright. I can't imagine the lights for that test. Very impressive and great content. 1200ppm co2 at 4000 micromoles per square inch per second, For 12 hours.
I just switched to a NextLight Mega Pro. I was using Pro Bestva 4000W. I am already noticing wilting. I understand the new light has 1600 output. Any advice to help alleviate this? Cannabis crop with no Co2.. I feed once a week with an organic line of liquid nutrients.
I love Bruce he is such a kind human being with amazing amounts of knowledge and understanding. I dont think people realize how important and necessary these DLI sensors will be. As the world increases in temperature, the ability to grow gardens in backyards and random locations with limited amouts of sun will become more accessible; these sensors would be able to lyk how many people are able to grow their own food in their locations. Even people who live in apartment buildings who use windows to grow during certain parts of the year will also know how much extra supplemental lighting to give to their plants, food and herbs!
There are many growers, who panic about burning the seedling with too much light, that they keep them much too dark in the first three weeks. Then they have leggy seedlings, which need to get help for stability.
