i havent ever messed with anything like that.
for storing i would guess that cool, dark, and in amber or colored jar would be good. but thats just a general guess, cause thats the issue mostly with storing anything - no clear jars or exposure to light.
i have been pouring over stuff like this, on a learning curve with making IMO and fermented inputs.
theres a lot of different ways and recipes to make various things like this to add...and i dont think you have to be exactly precise as all this stuff to get this effect.
http://www.scribd.com/doc/17295835/Korean-Natural-Farming-Inputs
http://www.scribd.com/doc/15940714/Bokashi-Nature-Farming-Manual-Philippines-2006
http://www.scribd.com/doc/16646414/Farmers-Guide-on-BioOrganic-Inputs-from-Plants-Fish-Animal-Liquid-Extracts
with some recipes to make:
CRH Carbonized Rice Hull
FAA Fish Amino Acids
FFJ Fermented Fruit Juice
FPJ Fermented Plant Juice
FRB Fermented Rice Bran
IMO Indigenous Microorganisms
KAA Kohol Amino Acids
OHN Oriental Herbal Nutrients
but these are more bacteria and good funky stuff, fermented stuff, not mushrooms specifically..
the idea is to draw on your local good fungi and bacteria and help it along
here i just put out wood and within minutes it seems its covered in fungi!
exagerating a bit...but not really. so it seems good to just set up the conditions they like and they will come =)
i see mushrooms as more helpful to the soil, and then therefore the plants through helping the soil. well thats just the way i look at it...cause i guess theres some that are directly helpful to plants- but i have no knowledge of that.