Good questions. Lets hope vertical farming is well studied before it becomes common place or it could become another agricultural folly.
Harry On Sat, Mar 18, 2017 at 11:00 AM, Bob Higgins <[email protected]> wrote: > One of the problems with agricultural vegetables today is that they are > devoid of the micronutrients that the human body needs to be healthy. > These include a lot of trace minerals (boron, calcium, vanadium, iodine, > zinc, copper, magnesium ...) that are found in fresh soil; but for 100 > years, these micronutrients have been farmed out (and not replaced). > Farmers only add N-P-K back to the soil because they found that doing so > would make green plants, but that doesn't mean that the resulting plants > are chemically nutritious for humans. Historical farming was most > nutritious in flood plains because the flood silt would restore the > micronutrients to the soil. > > Plants cannot absorb these micronutrients as oxides or sulphates directly > - they must be broken down by consumption in bacteria within the soil and > chemically converted to metal chelates in the bacterial deficant before the > plants can absorb them. > > So, how in a vertical farm are the core nutrients and micronutrients > supplied to the plant in a way that the plant can absorb them? Are they > growing the bacteria in a vat from which they extract the chelate-rich > water (absorb-able nutrients) for spraying on the plant roots? Are the > resulting plants nutritious? > > On Sat, Mar 18, 2017 at 8:36 AM, H LV <[email protected]> wrote: > >> Vertical farming is slowly becoming more common. >> >> https://www.youtube.com/watch?v=-_tvJtUHnmU >> >> Harry >> > >
