What Is The "Fly Ash" In Commercial Top Soils Made Of?
What is the "fly ash" in commercial top soils made of? I would *hope*
it would be comparable to what is left on the ground after a forest
fire, but *suspect* it's nothing more than some sort of industrial
waste recycled. The top soil I'm specifically referring to is sold
under the Lowes' brand name for about a buck a bag. Anyone know the
answer?
Patrick
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