Brian Van Fleet
Pretty Fly for a Bonsai Guy
..I've been deathly afraid of over-fertilizing. . . .
Doubtful you do more harm than clogging the soil a bit by heavily fertilizing with organics. I use organic cakes that cover 25-50% of the soil surface, March-November, and feed weekly with fish emulsion at about double strength...muddy...around 1/2-2/3 cup per 4 gallons (I don't really measure, just a few big glugs from the gallon jug).