The soil I prefer is my own as it is. It never had chemicals on it at least for the last 12 years. I used to buy shrimp compost but not so much anymore. I make my own, and fertilise with organic stuff some I make myself. Don't ask me to describe how I do, I'm too busy for that really don't have time. I am very interested in forces of life and need all the help I can to heal my body. When I read about something good, I just got to experiment with it.
Did you see the movie posted here on Trapper's site about a new way of gardening? AWESOME !! Will try and find it later. It's name was something like "eden garden"...