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On March 23rd Dave wrote:
> I also know exactly why your kitty litter works and why its not the
> optimal substrate for growing plants ... even though it is adequate.
> There is a large body of literature that has examined substrate
> requirements of aquatic plants, and the data from controlled, repeated
> experiments clearly show that loam soils of low organic matter produce
> the best growth. For reasons of safety, of course, many prefer a
> sterilized commercial substrate, which is perfectly understandable.
I would appreciate a reference or two if you have them handy, actually I
greatly appreciate those who provide such references for those of us
who would be interested in some research but who are not literate in a
given field such as chemistry, botany, etc.