Soil acts as a buffer to the roots. so if you...
Over feed
have extreme ph fluctuations
The soil slows the effect's
which gives you more time to fix the problem.
Hydro you have no buffer for the roots.
effects are fast and sometimes could kill the plant.
Hyrdro has better o2 and h2o ratios...Faster growing.
Its like running a mile race against a smoker and non smoker.
Which do you think will win.