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Re: Mycorrhizae is a secret weapon

What Lee Reich writes is very true.  Many mycorrhizae strains are present in
good soil, and they are specific to certain plants.  Those that enhance
pines, for instance, won't do a thing for most vegetables.  The VAM that
most commercial purveyors sell is specific to many vegetables, but don't do
a thing for lettuce, the mustards, palms or many monocots.  And, yes most
soil has mycorrhizae naturally, but unfortunately, many lawns, gardens and
tree plantings have been deluged with high nitrogen and phosphorous
fertilizers which have destroyed the nature soil balance and killed
mycorrhizal fungi.  A good example of this is virgin prairie that supports a
host of plants easily.  The prairie is plowed and planted.  The first few
years of crops are good, but the yields decline.  Then fertilizer is spread
on the fields, and it has to be applied every year, many times in increasing
doses to equal earlier yields.  If the field has been left alone, compost
and other natural fertilizer been applied, the never-ending-fertilizer
circus could be avoided, because the mycorrhizae and other beneficial
microbes would be alive.  I cringe every time I see an anhydrous ammonia
tanker along side of prairie fields in IL and IA .
End of my rant for the day,
Doreen Howard

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