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24hr plant propagation

ForestDave

Member
Joined
12 Nov 2020
Messages
240
Location
Forest of Dean
Plants are expensive.
Has any one tried splitting some plant specimens into new rock wool pads and a empty tank, adding a low bath of nutrient rich water and sticking the lights on 24hrs a day?
 

Nick potts

Member
Joined
25 Sep 2014
Messages
599
Location
Torbay
Splitting plants and growing them emersed is a good way of growing and propagating plants. You can use rockwool, but I find standard potting compost works well and if nutrient rich.

Don't know on the 24hr light though, I am sure I have read somewhere that after a certain period the plants won't use the light anyway??
 

dw1305

Expert
UKAPS Team
Joined
7 Apr 2008
Messages
12,072
Location
nr Bath
Hi all,
Don't know on the 24hr light though,
It depends on the plant, commercially they grow some <"salad crops under 24 hour light"> ("continuous illumination"), but others need a "night" and they use a 16 hour day for them.

My guess is with the coming of LEDs, there is now a lot of work on R:B ratio and on LED pulsing. It may be that a series of light periods, with small dark gaps, increase yield and decrease energy use. One of the issues with discharge light (HPS) is that they don't re-strike etc. meaning that you have to have them constantly on during the programmed photo-period. A very flexible light could be linked to photo-sensor and come on and off as PAR levels vary from clouds etc.

It only needs to be a marginal gain to be commercially viable.

cheers Darrel
 

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