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Re: Mycorrhizae is a secret weapon

Lee Reich wrote:
 Mycorrhiza alone could not support agriculture. The nutrient that is most
> evanescent and needed usually in greatest amounts is nitrogen, which
> mycorrhizae have little effect on. Their greatest effect is on
> nutrients, such as P, that are only slowly mobile in the soil.

Very true, but......  It's all the soil microbes--bacteria, virus and
fungi--that do the job.  Mycorrhizae is just one piece of soil fertility.
And large amounts of nitrogen added to the soil kill mycorrhizae and other
microbes.  The addition of anhydrous ammonia virtually sterilizes the soil
of these.
Doreen Howard

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