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There was a,long wait in shipping. Thus far, I have seen no appreciable changes between the treated plants and the untreated. [a year later] I put it in the soil and see absolutely no difference in the gardens. I'm no Luther Burbank but I do know my way around gardening. I used it in one section and not another. There was no connection aside from identical soil and husbandry. Absolutely no change that I could see. Perhaps there are other measures of the efficacy of this expensive product but they are not apparent to me.
I've read about this stuff (commercially used) and it appears to be a sound idea. My question is, why does this not produce the same as the stuff farmers use with success? I used it over two seasons so no one can say i didn't give it a try.