Regardless of organic/hydro nutes, if you can find nature's methodology for transporting nutrients into roots/through the cell walls of roots, you can get the same results, not worry too too much about burning plants (unless you're foliar spraying), and its cheaper (and can be free if you're smart!). Nature technically doesn't use a single molecule for this purpose, its more of a complex of chemical structures that "wheel" nutrients into plants. Capable of solubilizing complex chemicals through cell walls and directly into the root cell without having to get bogged down in transport channels. There's a reason why not only do natural areas triple and quadruple above ground biomass of agricultural areas if the same ecotype and plant community persists (not comparing rain forest to a lettuce patch), in addition to having measured EC values of soil water under field capacity at less then .001 the majority of the time -- discounting aridisols, but even mollisols and ultisols can have insanely low EC values compared to their above ground biomass, and then when you farm those soils you need an EC of like .2 to move any nutrients at field capacity.