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> with an enormous array of yellow lamps Do they really need yellow? Plants do not really need green light (that's why leaves usually reflect green they don't
by deepsun 7y ago
> with an enormous array of yellow lamps
Do they really need yellow? Plants do not really need green light (that's why leaves usually reflect green they don't need), so they'd probably be ok with red/blue lamps only. So why yellow?
https://en.wikipedia.org/wiki/Grow_light https://en.wikipedia.org/wiki/Grow_light
- detaro 7y agoI guess they use sodium-vapor lamps because they're common and quite efficient, which happen to be yellow?
- Igelau 7y agoYou'd probably be right if they were only concerned with the growth of greenery. It's possible that the light needs of a flowering/fruiting tomato plant are different. It's also likely that the work of the humans and the bees is easier in something closer to daylight.