"Mike" wrote in message

Hum...well what would be a safe additive that would complement the soil
along with Ammonium Phosphate and Sulfur?

Thinks earth worms. The feeding and breeding and growth of earth worms.

Anything that is good for worms is good for your soil.

Worms are a gardeners best friend and if you have lots of worms in your
soil, then you should have no problems. No earth wroms or only a few of
them in your soil is a sign of "Dnager Will Robinson". Learn about and read
about earth worms.