The standard 1 part earth worm castings 1 part high quality spagnum peat moss. 1 part aeration(pumice/perlite)
then to every cf of this is 2-3 cups NPK ammendments like kelp, alfalfa, neem, crab.
4 cups minerals. Like basalts, azomite. Greensand,glacier rock dust et
1 cup oyster shell
1 cup...