Thanks both, it was especially good to see a first-hand account.//
especially useless actually but hell this is AB - very prone to recall and observer bias
woofies article easi;y the best of three posts is a review article (where did you find it) - and in posh language says
you really have to explant the soil
mycorhizzal powder cannot be purified so the trials cant really be controlled but they are looking at reponse rates of 90% in the lab.
wow !
very good review article - I feel like I know a lot about mycorhiza now