[dice]

[BioVam and phosphates]

I doubt that the interaction of mycorrhizal fungi and high
phosphates could dry up and kill your seedlings. (The paragraph
at the BioVam site gives that impression, but that would be
a wrong conclusion, in my humble opinion.) High phosphate
levels might be able to do that to the seedlings on their own,
whether mycorrhizae have been added or not (I have crisped
a few with high phosphate blossom boosters over the years,
trying to cure the early spring cold weather purples), *and*
high phosphate levels will inhibit the development and growth
of mycorrhizal fungi, but those two effects are independent
of each other.