WHAT no wonder it took so long to find a good video on lighting for plants bc no one putting respect on your name! This needs a million views and likes! Also thank you bc I am clueless about lighting this made so much sense and helps so much! I appreciate the hard work you put into this video:)
Great series! Have you been able to do any tests on whether it's better to run high intensity for 16 hrs vs slightly lower intensity for 20 hrs but achieving the same DLI? This would be for a crop like Basil. At what point is it too much light? Thanks again for all the videos.
Hey Nicholas, thanks for watching! Basil can handle a lot of light, I've seen it grow well with a DLI over 30 mol/m2/day. At minimum I try to give basil 12 mol/m2/day indoors (but more is better) and in a greenhouse I target a minimum of 17 mol/m2/day. For most leafy greens I'm comfortable running a 20 hour photoperiod. Usually it is cheaper for growers to design a system that runs lower intensity for longer photoperiod (ie. 20 hr). Lower intensity will generate less heat indoors and require less grow lights. Do you know what DLI you are running now? Are you indoors or in a greenhouse?
Thanks for the response! After watching your video that did seem like the way to go, so that you wouldn't need to ventilate as much on a daily basis. I'm growing indoors with a DLI of 15-17 on the edges and up to 25 in the middle of the rack (ZipGrow) also while supplementing CO2. They are 4000k white LEDs called QB120 boards from horticulture lighting group. They are dimmable so I can adjust intensity. My issue has been that the plants that get the higher DLI have had deficiencies, although I think it may be due to air stratification as VPD has been a little high, some of them get kind of tough growth compared to those who don't get quite as much light. Although after watching the blue light episode, I wonder if it partially has to do with my spectrum. What kind of humidity do you usually grow at? It's pretty dry where I am at.
What does the deficiency look like? If it is interveinal chlorosis in new growth (yellowing between leaf veins) it probably is iron. Basil is 'iron-inefficient', it is best to grow it in a nutrient solution with a low pH to keep the iron available to the plants, I aim for a pH of 5.5 when growing hydroponic basil. If it is chlorosis on lower leaves it is usually nitrogen or magnesium. Easiest fix for this would be to raise your EC. There are definitely many other possibilities but difficult to say without seeing the growing environment and checking out nutrient solution.
Yeah it's been interveinal chorosis mostly on new growth. That's interesting on the PH. Mine has been higher than that so that is possibly the issue. Thanks for taking a stab, I know it's really tough to diagnose without being around the plant but I appreciate it. Once again, awesome videos. These are all of those tests that I would love to do but don't have the means so I'm grateful there are others like you out there willing to share!
Nicholas Bouman have you stuck with the HLG 4ks for basil? I have found the spectrum to result in substantial stem elongation in many basil cultivars, I believe as a result of the high level of green in the spectrum, which may offset the blue peak.
I wonder if you could help me. I have 8 calathea that aren’t doing so good. I know it’s because they’re not getting enough light. I’m in the northern hemisphere in Scotland so I’m literally playing peek a boo with the sun 🤣🤣 What lights do you recommend for them? I’m so desperate to make sure they have optimal conditions. Many thanks, this video was super helpful.
30 some episodes in and I've noticed two of ur quirks or evolution processes yourself, both of which I find absolutely hilarious! First, either you're blazed 24/7 or your eyes have evolved to constant direct light. Second, you sound like you wanna burp alot and you cover it up by making your voice lower? It's a crazy anomaly, then there's your inherent goofiness...you say random stuff at correctly placed times. Thanks for the quality info and your ability to connect and relay-laymans terms.
Great video's, but that led blocks more light then it produces. You want a small reflector for green house applications, with a bulb like growers choice DE CMH 1000w 4200k 98cri. Its as close to pure sun light as it gets.....
Zaka Pentax If you think that California Lightworks SolarSystem LED in any way compares to the quality of light of the sun or a 98 cri bulb you have a lot to learn about light quality. Gavita makes a system that will automatically adjust the watts across a greenhouse to adust for light levels and or heat. So the 1000w de hps or cmh is fully and automatically adjustable and at a fraction of the cost 3 or 4 gavitas for 1 led especially with bulk discount. These Gavita setups are in the most well funded greenhouse grows across the world, they dominate the industry for a reason, they work! The LED shown in the video will never replace the light quality or intensity that it takes away from the greenhouse grow. Its to damn big for a greenhouse application! With low light loving plants the led would prove to be great by default of needing a low performance greenhouse grow. With cannabis, its a laughing joke for a greenhouse to block out the sun in an attempt to provide more light, small powerfull reflectors win. Plants use no less then between 360nm-760nm Leds rarely travel beyond 400-700 even "full spectrum LED'S".
@@fubar226Some LEDs produce a similar amount of PAR light as a DE HID light, while using 2/3 of the energy a DE would use, emitting far less heat and with far more control over the spectrum. So while LEDs are more expensive upfront (and costs continue to go down over time since it's a relatively new technology), they are more efficient consumption wise and they require less maintenance. DE lights are still awesome, don't get me wrong, they just use more energy than LEDs do to achieve the same results with plants, which makes them less profitable for a business.
Where’s you at blood. That’s one trick compound you gots there. Damn. It sucks you ain’t got no Ganga growing though huh. You need to find a balance hombre. Duh 🙄
WHAT no wonder it took so long to find a good video on lighting for plants bc no one putting respect on your name! This needs a million views and likes! Also thank you bc I am clueless about lighting this made so much sense and helps so much! I appreciate the hard work you put into this video:)
Dudes is living his best life! 🎊 Congratulations 😶🌫️
Great series! Have you been able to do any tests on whether it's better to run high intensity for 16 hrs vs slightly lower intensity for 20 hrs but achieving the same DLI? This would be for a crop like Basil. At what point is it too much light? Thanks again for all the videos.
Hey Nicholas, thanks for watching! Basil can handle a lot of light, I've seen it grow well with a DLI over 30 mol/m2/day. At minimum I try to give basil 12 mol/m2/day indoors (but more is better) and in a greenhouse I target a minimum of 17 mol/m2/day. For most leafy greens I'm comfortable running a 20 hour photoperiod. Usually it is cheaper for growers to design a system that runs lower intensity for longer photoperiod (ie. 20 hr). Lower intensity will generate less heat indoors and require less grow lights. Do you know what DLI you are running now? Are you indoors or in a greenhouse?
Thanks for the response! After watching your video that did seem like the way to go, so that you wouldn't need to ventilate as much on a daily basis. I'm growing indoors with a DLI of 15-17 on the edges and up to 25 in the middle of the rack (ZipGrow) also while supplementing CO2. They are 4000k white LEDs called QB120 boards from horticulture lighting group. They are dimmable so I can adjust intensity. My issue has been that the plants that get the higher DLI have had deficiencies, although I think it may be due to air stratification as VPD has been a little high, some of them get kind of tough growth compared to those who don't get quite as much light. Although after watching the blue light episode, I wonder if it partially has to do with my spectrum. What kind of humidity do you usually grow at? It's pretty dry where I am at.
What does the deficiency look like? If it is interveinal chlorosis in new growth (yellowing between leaf veins) it probably is iron. Basil is 'iron-inefficient', it is best to grow it in a nutrient solution with a low pH to keep the iron available to the plants, I aim for a pH of 5.5 when growing hydroponic basil. If it is chlorosis on lower leaves it is usually nitrogen or magnesium. Easiest fix for this would be to raise your EC. There are definitely many other possibilities but difficult to say without seeing the growing environment and checking out nutrient solution.
Yeah it's been interveinal chorosis mostly on new growth. That's interesting on the PH. Mine has been higher than that so that is possibly the issue. Thanks for taking a stab, I know it's really tough to diagnose without being around the plant but I appreciate it. Once again, awesome videos. These are all of those tests that I would love to do but don't have the means so I'm grateful there are others like you out there willing to share!
Nicholas Bouman have you stuck with the HLG 4ks for basil? I have found the spectrum to result in substantial stem elongation in many basil cultivars, I believe as a result of the high level of green in the spectrum, which may offset the blue peak.
Your explanation of light measurement would go smoother if you first stated what a Mole of something is (6.022X10^23 photons in this case).
Can you tell me why people need to control light intensity in a commercial greenhouse
I wonder if you could help me. I have 8 calathea that aren’t doing so good. I know it’s because they’re not getting enough light. I’m in the northern hemisphere in Scotland so I’m literally playing peek a boo with the sun 🤣🤣 What lights do you recommend for them? I’m so desperate to make sure they have optimal conditions. Many thanks, this video was super helpful.
I can help u if u want lol
30 some episodes in and I've noticed two of ur quirks or evolution processes yourself, both of which I find absolutely hilarious! First, either you're blazed 24/7 or your eyes have evolved to constant direct light. Second, you sound like you wanna burp alot and you cover it up by making your voice lower? It's a crazy anomaly, then there's your inherent goofiness...you say random stuff at correctly placed times. Thanks for the quality info and your ability to connect and relay-laymans terms.
Omg I’m noticing this too lol 😂 I’m like why’s his voice changing but that’s how it sounds when he finds something amusing.
Thank you, omg this was very informative
Great video's, but that led blocks more light then it produces. You want a small reflector for green house applications, with a bulb like growers choice DE CMH 1000w 4200k 98cri. Its as close to pure sun light as it gets.....
But it produces every time the same amount of light, so sometimes it blocks sun light sometimes it produces more than shaded sunlight
Zaka Pentax If you think that California Lightworks SolarSystem LED in any way compares to the quality of light of the sun or a 98 cri bulb you have a lot to learn about light quality. Gavita makes a system that will automatically adjust the watts across a greenhouse to adust for light levels and or heat. So the 1000w de hps or cmh is fully and automatically adjustable and at a fraction of the cost 3 or 4 gavitas for 1 led especially with bulk discount. These Gavita setups are in the most well funded greenhouse grows across the world, they dominate the industry for a reason, they work! The LED shown in the video will never replace the light quality or intensity that it takes away from the greenhouse grow. Its to damn big for a greenhouse application! With low light loving plants the led would prove to be great by default of needing a low performance greenhouse grow. With cannabis, its a laughing joke for a greenhouse to block out the sun in an attempt to provide more light, small powerfull reflectors win. Plants use no less then between 360nm-760nm Leds rarely travel beyond 400-700 even "full spectrum LED'S".
@@fubar226Some LEDs produce a similar amount of PAR light as a DE HID light, while using 2/3 of the energy a DE would use, emitting far less heat and with far more control over the spectrum. So while LEDs are more expensive upfront (and costs continue to go down over time since it's a relatively new technology), they are more efficient consumption wise and they require less maintenance. DE lights are still awesome, don't get me wrong, they just use more energy than LEDs do to achieve the same results with plants, which makes them less profitable for a business.
Nice movie voice :)
Please please please please please please please please please please
Where’s you at blood. That’s one trick compound you gots there. Damn. It sucks you ain’t got no Ganga growing though huh. You need to find a balance hombre. Duh 🙄