Plants take up 16 elements from the soil, and they can take them up actually very good from a nutrient solution. Research is ongoing of course, but this is pretty much fact.
If you eat non-organic produce, you are basically eating not much different from hydro produce, because fertilizers contain essentially the same elements as hydro nutrients, only they are much more damaging to the environment (you have to apply a lot b/c of runoff).
I'm not saying hydro is the way to go for all our produce, but the veggies sure are just as nutritios and beatiful (if not more) than those from dirt growing.
If any one has a horse (I'm getting to a point here) thery would know the amount of carp there can produce. So soil is better b/c it gets rid of the montain of manure. (or can you use it in hydroculture? not sure)
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