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Originally Posted by Skipster
The article cited by the OP seems to be little more than an opinion piece and has little scientific background. If you're reading something without references following it, its nothign more than one person's opinion -- not scientific fact.
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I think the United States Department of Agriculture Natural Resources Conservation Service is a credible source with at least some science background. The article is not an opinion piece and was written for the public. Yes it should have cited sources, that doesn't mean they don't exist.
The scientific body of soil microbiology has been growing rapidly in the last 20 years. There is much to learn. What was considered scientific fact in many areas of science 20 years ago has fallen by the wayside.