Harri Tavaila wrote:

29.11.2016, 4:53, Fred J. McCall kirjoitti:

Try growing plants in soil with no carbon in it and see how that works
for you (it mostly will work very poorly, if at all).

I believe this is essentially what hydroponic farming is about.


Yes, but that's not what's being discussed. If you 'predigest'
everything for the plants, you can grown them in air.


--
"Some people get lost in thought because it's such unfamiliar
territory."
--G. Behn