is moonlight beneficial?

Kassiopeija said:

Rare blue moon will bring a Halloween 2020 treat to the skies.


Could you perhaps take a SPD as well please?

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I hasn't got a spectrometer but I found this link..... which might be of interest


There's not much info on the net.



Only other thing I found was spd 1
So, on that note ....

After signing the SPD-1, President Trump holds an astronaut toy
Lunatic - is an antiquated term referring to a person who is seen as mentally ill, dangerous, foolish, or crazy.... lol

Brettman said:

love bro science.

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I totally use the moon when growing. I just dropped seeds on Wednesday and 4/5 are up out of the dirt today. I have great success germinating one week to a full moon and haven’t stopped cycling my grows according to the moons cycle.
This year so far I grew a crop germed on the snow moon and the pink worm moon and now the blue. It’s been a busy year!

Well I guess it's time to put in that sky light.

Check this link, https://mooncalendar.astro-seek.com/gardening-moon-calendar-farmers-guide

KootenayDIY said:

Check this link, https://mooncalendar.astro-seek.com/gardening-moon-calendar-farmers-guide

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Yes a calendar, used as a time guide, nowt to do with growing under a moon though, I know it's Halloween but come on ffs.

I always found the moonlight to be quite freeing.

pulpoinspace said:

why don't you take a lux meter outside at night and see what it says, then turn your grow lights on, even at the lowest setting, and see what that says.

results might surprise you.

(spoiler alert: moonlight, even with a full moon a clear night is less than 1 lux. less than ONE, sunlight is 20k-100k+)

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Plus, the moon reflects the sun - as opposed to generating its own light.

AND - it goes from out to full power in a 28 day cycle.

Moflow said:

Spectrum of moon light – OliNo

There's not much info on the net.

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Thx for the link, that hardware used seems promising. That company even got 250-1000nm stuff, but not for fields...

BTW one article by Dr. Karolina M. Zielinska-Dabkowska posted in the comments, is very interesting:

I'm gonna change the bulbs in my rooms. Some for day, and some for nights. Nevermind the hardware costs... she still uses incands., but Samsung electr. has developed chips for human application "DAY" and "NITE" which cut out, or extremely increase, the "Melatonin" band:

Moflow said:

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Read previously some stuff by her:

but a lot is too short and doesn't really go deep in. Oversimplification can lead to false conclusions as well:

IF one uses a full-spectrum light, ok, but what if only FR/NIR?:

Works - light with wavelengths >700nm creates etiolement, no chloroplasts, leaves stay yellow, just as if under soil.

*Nightlight*

Kassiopeija said:

I'm gonna change the bulbs in my rooms.

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Interesting.
This might be useful.

Here's the calculator

The Samsung lm302n spectrum looks good, especially in the blue area around 480nm which would fill the gap missing in the Samsungs below.

But I suppose it's more use for human circadian rhythms?
Maybe for people who are suffering from SAD?
Excerpt from the NHS Website says
It's thought the light may improve SAD by encouraging your brain to reduce the production of melatonin (a hormone that makes you sleepy) and increase the production of serotonin (a hormone that affects your mood).
Sunrise alarm clocks, which gradually light up your bedroom as you wake up, may also be useful for some people.

elibaltutiimaidumituti said:

it would seem that moonlight does have a demonstrated positive/natural/necessary? effect on plant growth. reference the spectral chart and lunar phase plant response chart. i imagine a “moon light” system that replicates lunar spectral frequency at appropriate and natural light levels. perhaps even programmable to dim or brighten thus accurately simulating lunar phases. thoughts?

Can moonlight affect plant growth? - Permaculture Principles

Modern research is confirming many of the observations about how moonlight affects the growth of plants, but is just beginning to explain why.

permacultureprinciples.com

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I was under the impression that its not the light of the moon that is beneficial to some crops, but more so the gravitational effect of the moon itself?????

Kassiopeija said:

Thx for the link, that hardware used seems promising. That company even got 250-1000nm stuff, but not for fields...

BTW one article by Dr. Karolina M. Zielinska-Dabkowska posted in the comments, is very interesting:

Make lighting healthier

Artificial illumination can stop us sleeping and make us ill. We need fresh strategies and technologies, argues Karolina M. Zielinska-Dabkowska.

www.nature.com

I'm gonna change the bulbs in my rooms. Some for day, and some for nights. Nevermind the hardware costs... she still uses incands., but Samsung electr. has developed chips for human application "DAY" and "NITE" which cut out, or extremely increase, the "Melatonin" band:

Read previously some stuff by her:

Linda Chalker-Scott | Washington State University

Horticultural Myths Looking for the newest myth-information? Check out our blog The Garden Professors. You’ll find science-based information from four horticultural professors from around the country. Fertilizers The Myth of Beneficial Bone Meal (pdf) The Myth of Vitamin Shots (pdf) The Myth of...

puyallup.wsu.edu

but a lot is too short and doesn't really go deep in. Oversimplification can lead to false conclusions as well:

https://s3.wp.wsu.edu/uploads/sites/403/2015/03/light-pollution.pdf

IF one uses a full-spectrum light, ok, but what if only FR/NIR?:
View attachment 4730558
Works - light with wavelengths >700nm creates etiolement, no chloroplasts, leaves stay yellow, just as if under soil.

*Nightlight*

View attachment 4730557

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LOVE the new avatar!

Moflow said:

But I suppose it's more use for human circadian rhythms?

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Yes, these are for human application

Moflow said:

Samsungs below.

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Which are these? IRRC the lm301b/h doesn't have that "dent" @ orange...

Considering Samsung fixed some problems with 301b's ability to work in a high rH environment, I wonder if the 301b spectrum has even been developed for plant application...?

I find the lm301b-ONE of superior spectrum:

They say it's been developed after actual tests done on leafy plants, this spectrum should allow for higher penetration, PS rates & may allow higher umols to be shot at the intial leaf, but may also loose more light to the ambient and therefore should be used in a closed reflective environment.

Moflow said:

especially in the blue area around 480nm which would fill the gap missing

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Maybe this is a good thing, as ß-carotene in leaves is used to dissipate excess heat away, and therefore mustn't artificially heat up by extra light.
I've addressed this further here a bit:

Moflow said:

But I suppose it's more use for human circadian rhythms?
Maybe for people who are suffering from SAD?
Excerpt from the NHS Website says
It's thought the light may improve SAD by encouraging your brain to reduce the production of melatonin (a hormone that makes you sleepy) and increase the production of serotonin (a hormone that affects your mood).
Sunrise alarm clocks, which gradually light up your bedroom as you wake up, may also be useful for some people.

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Yes, indeed. Also there are special IR wavelengths (IRRC @ 2500nm) which holds great health potential for humans, they do something in our skin.

curious2garden said:

LOVE the new avatar!

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Thank you, sort of a combination of Peggy Bundy & Nebula Haze. Came across that on eBay coincidentally...XD

Kassiopeija said:

Yes, these are for human application


Which are these? IRRC the lm301b/h doesn't have that "dent" @ orange...

Considering Samsung fixed some problems with 301b's ability to work in a high rH environment, I wonder if the 301b spectrum has even been developed for plant application...?

I find the lm301b-ONE of superior spectrum:
View attachment 4730622
They say it's been developed after actual tests done on leafy plants, this spectrum should allow for higher penetration, PS rates & may allow higher umols to be shot at the intial leaf, but may also loose more light to the ambient and therefore should be used in a closed reflective environment.


Maybe this is a good thing, as ß-carotene in leaves is used to dissipate excess heat away, and therefore mustn't artificially heat up by extra light.
I've addressed this further here a bit:

Indoor Lighting vs. Mother Nature

He just announced that he was closing down, but mass medical strains shares a similar philosophy, that there are valuable qualities in landrace sativas from back in the day that have been somewhat forgotten about in the pursuit of the denser, more convenient instagram-worthy indicas. might be...

www.rollitup.org

Yes, indeed. Also there are special IR wavelengths (IRRC @ 2500nm) which holds great health potential for humans, they do something in our skin.


Thank you, sort of a combination of Peggy Bundy & Nebula Haze. Came across that on eBay coincidentally...XD

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Bundy's rule. Props to Nebula Haze too

Doug Dawson said:

Bundy's rule. Props to Nebula Haze too

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I loved Peg