hmm, to understand mushrooms its goes a lot deeper than just nutrition. mushrooms for the most part will leave a very nutritious compost, competition for nutrients are not relevant because they do not compete for the same nutrients as you would imply, yes they use similar nutrients, but fungi are decomposers, they must chemically process thier food, the plant would steal the mushroom nutes if anything, but also would proved food at the same time too.symbiosis man.
http://www.mushroomcompost.org/faqs.htmi use grow bags so my mycelium is getting plenty of FAE even so in a pot you can only pack straw so tightly, so there is tons of FAE. splenty of conversion of co2 to to 02 for the roots. which is not something i have really though about.
i wonder on the micro environment level, what the percentage of o2 in the straw is.
its good to play devils advocate, but when its what the threads about, colonized substrate planting was an after thought, to just growing in straw, which is the main subject, which thus far has been pretty good.i am considering adding a hefty amount to my soil mixes.