1 part Perlite or Vermiculite
1 part Compost
1 part "Store Bought" Topsoil
1 part Composted Steer Manure
For each gallon of the above mix, add:
1. Your favorite dry "organic" fertilizer (such as FoxFarm's Marine Cuisine) at about 1/4 - 1/2 strength.
2. About a good Tablespoon of Dolomite lime.