Mycorhizzae vs. Fertilizer

[Eric Grunden]

If a person was to isolate a fungus that would form a 
mycorhizzae relationship with an agronomic crop, would
innoculation of that fungus into the field (once it
became established) be an effective method for reducing
the need for commercial fertilization? Wouldn't the
"strength/abundance" of the fungi grow exponentially with 
the passing of years?
-- 
			* * * * * * *
"An empty can, just like a mind, makes noisy senseless clatter.
Full cans sit stoically behind, and contemplate the latter."
- excerpted from "The Collective Works of Johnny Pokerface" -