There is a bit of misconception about organic. Plants do not uptake organic compounds, only inorganic. So it's sort of a moot point about going organic. On the other hand, soil rich in organic fertilizer (manure, worm castings, bat guano, fish emulsion, etc) breaks down into the inorganic compounds needed by the plant and you can use a lot more of it than if you use chemical fertilizers. The best grows I've seen have been done using manure, worm castings, bat guano, fish emulsion, sea weed stuff, and so on.