Anthem
- Posts
- 4,155
- Reactions
- 6,998
- Joined
- Dec 6, 2019
- Points
- 263
That sound like a reasonable test, but using a couple clones would help narrow down the data, exactly the same DNA
That sound like a reasonable test, but using a couple clones would help narrow down the data, exactly the same DNAI’m running as close to a side by side comparison right now with cheese phenos I picked 2 similar from seed plants one is flowering under the sp-250 and the other under a kingbrite with far red and Ir. Been a couple weeks since flower started and already a noticeable difference. Mars works well for veg but needs a little supplementing in my average joe opinion
Ya all know I’m not nearly as scientific or knowledgeable as you two, however I’m facing this dilemma as we speak , I have added the extra calmag , but I am trying to cut back the calmag to .2 and up 1.0-1.2 of pbp grow - just got done feeding so we will see what happensIm glad you brought that up. I dont see how or why a plant would be needing more of only a specific nutrient. If nutrient needs increase and they obviously do with fuller spectrums and more intensity rhe plants would need more of everything. I just think calcium tends to show first under stress.
My phillips cmh bulb requires more nutes than the t-5 flourescents in my 3x3 for sure. But i just upped the ec to compensate.
Of course with fertilizer i needed to be even more careful to over feed or have salt buildup with the higher ec in the same size pots so i think the opinion of “mag hungry” or needs more calcium is just what we see first. Adding only cal mag would only be a band aid in my opinion.
That sound like a reasonable test, but using a couple clones would help narrow down the data, exactly the same DNA
I would not say not a very good test but the way people see things is different and when there is room for speculation people speculate!!!Ya I know it’s not a very good test( they are autos) just opinionated but everyone has one! Lol
Happy growin !
What about tomatoes? I mean nobody has to agree but I am seeing more than enough evidence all over the place to suggest spectrum absolutely affects nutrient uptake and can influence what ratios would best suit our plants... Further complicating shit and explaining why we see such different results from the nutrients we use and someone else using the same. Also it's no secret that more than a few LED ppl often run into cal issues after switching to LED.I believe Bruce B references the lighting requirements for Lettuce in his you tube video on PPFD requirements. Lettuce max's out on PPFD at such a low amount of light I would question the valid of a test on lettuce being useful to the outcome on Cannabis.
I believe tomatoes to weed would prove to be more useful. Secondly, I also believe the spectrum and specifically the far reds and UV change the nutrient uptake of the plant but we have to be careful. I say careful because people are going to assume that because their new LED has far reds and UV LEDS onboard that is the reason why they have experienced larger yields. But they more than likely have a higher PPFD as well. Additionally, I two am of the belief the amount of light drives the nutrient needs of the plant. When you increase PPFD's there is also a need for additional nutrients. Including Cal Mag. I do not fully understand the need for addtional cal mag and incresed PPFD's.What about tomatoes? I mean nobody has to agree but I am seeing more than enough evidence all over the place to suggest spectrum absolutely affects nutrient uptake and can influence what ratios would best suit our plants... Further complicating shit and explaining why we see such different results from the nutrients we use and someone else using the same. Also it's no secret that more than a few LED ppl often run into cal issues after switching to LED.
I absolutely agree with you. Light intensity will drive overall nutrient uptake and growth. What I'm saying is the ratio of the nutrient needs may change with spectrumI believe tomatoes to weed would prove to be more useful. Secondly, I also believe the spectrum and specifically the far reds and UV change the nutrient uptake of the plant but we have to be careful. I say careful because people are going to assume that because their new LED has far reds and UV LEDS onboard that is the reason why they have experienced larger yields. But they more than likely have a higher PPFD as well. Additionally, I two am of the belief the amount of light drives the nutrient needs of the plant. When you increase PPFD's there is also a need for additional nutrients. Including Cal Mag. I do not fully understand the need for addtional cal mag and incresed PPFD's.
Trying to relink. Not working... This is one of the papers.I believe tomatoes to weed would prove to be more useful. Secondly, I also believe the spectrum and specifically the far reds and UV change the nutrient uptake of the plant but we have to be careful. I say careful because people are going to assume that because their new LED has far reds and UV LEDS onboard that is the reason why they have experienced larger yields. But they more than likely have a higher PPFD as well. Additionally, I two am of the belief the amount of light drives the nutrient needs of the plant. When you increase PPFD's there is also a need for additional nutrients. Including Cal Mag. I do not fully understand the need for addtional cal mag and incresed PPFD's.
I agree with you Aqau Man. The challenge becomes how to understand the plants needs as the spectrum changes. If I threw out the PPM's I run people would say I am going to burn the crap out of the plant. But they are happy and no leaf burn.I absolutely agree with you. Light intensity will drive overall nutrient uptake. What I'm saying is the ratio of the nutrient needs may change with spectrum
This one might be the one you are looking forTrying to relink. Not working... This is one of the papers.
EFFECTS OF LIGHT SPECTRAL QUALITY ON NUTRIENT UPTAKE BY TOMATO
Read that like 20times... Also supporting. That is a great read I suggest it for anyone interested on learning about spectrum.This one might be the one you are looking for
An Update on Plant Photobiology and Implications for Cannabis Production
Oh absolutely use more calmag than other growers it’s a balancing act for sure and I can’t explain it at all but the mars and kingbrites require different amounts.What about tomatoes? I mean nobody has to agree but I am seeing more than enough evidence all over the place to suggest spectrum absolutely affects nutrient uptake and can influence what ratios would best suit our plants... Further complicating shit and explaining why we see such different results from the nutrients we use and someone else using the same. Also it's no secret that more than a few LED ppl often run into cal issues after switching to LED.
those numbers ain't bad. Here's the numbers on the mammoth lightsNot that anyone asked buuuut...
In my 4x4 tent I'm using a Timber 4VS at 3500k for veg/full spectrum (https://timbergrowlights.com/model-4vs/). It pulls 420w from the wall:
View attachment 990504View attachment 990505View attachment 990507
Seems a little underpowered for a full 4'x4' canopy so for flower I'm supplementing with a Trio of Daisies at 3000k spectrum - 'supposedly' better than HPS watt for watt for producing buds. These are like 95w a piece for an additional 285w from the wall I believe (https://timbergrowlights.com/trio-of-daisies-3/):
View attachment 990506
Since the Daisies are pendants you can arrange them how you like which is why there's no PAR map (same spectrum graph applies). *EDIT* Also forgot to add that you can get an extended remote cable to hang the driver outside the tent, helps if you are in a hot area running a grow tent in a non-climate controlled garage :)
Planning to spot-hang the daisies since I have an uneven canopy with multiple strains.
They're worth checking out. I went that way cause I didn't know absolutely one fucking thing about grow lights (just started) but I had seen BAS rave about the Timber COBs on some video so I didn't think it could be a bad place to start.
I'm an engineer by day so I love nerding out on this stuff.
hi guys - I'm looking at some LEDs from europe - what do you guys think based on these stats:
Power consumption: 200W
light output: 400W + / 520 umol / m2 / s
LED: 200 x 3.0W 5050 SMD high end horticulture chip (Made in Japan) - load per LED 35%
Spectrum: Full PAR cannabis spectrum 3410K / 2.62 umol
you gotta scroll down in link below to find it... its the Horizon 400
can we keep on topic folks? There's some great data here but it's not regarding my original post. I'm looking for advice on which commerical grade LED to get. The effectiveness of the LED light is not in quesion here, although ya'll have posted some good qeustions and data that deserves their own threads, ok? thanks!!
Guilty and your absolutely right.can we keep on topic folks? There's some great data here but it's not regarding my original post. I'm looking for advice on which commerical grade LED to get. The effectiveness of the LED light is not in quesion here, although ya'll have posted some good qeustions and data that deserves their own threads, ok? thanks!!
Gavita + fluence two dope brandsGuilty and your absolutely right.
Gavita + fluence two dope brands
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?