River's Edge
Imperial Masterpiece
If you check my initial response you should note that i use organic first to help establish microbial activity and then in some instances use additional types of fertilizers. So i never suggested you cannot use both. I prefer organic whenever possible due to environmental concerns and potential chemical toxicity issues for my trees and the micro-organisms that are beneficial to their optimum health.Why not both? *shrug*
However i recognize it is cost effective, less messy and simpler to apply synthetic chemical fertilizers. I do not use synthetic on refined trees or those confined in bonsai pots. Personal choice based on my understanding of the research and current body of knowledge surrounding the use of fertilizers.