This post is intended for kalampre, and the rest of you that have now looked.
Is any part of Afghanistan humid ? To grow the Oyster mushrooms outlined in this how to need 95 percent humidity. The average they had when they claimed to be growing was 40-60 percent.These folks claim the are doing it ?
Well anyways this is a cool how to:
http://www.instructables.com/id/How-to-Grow-Oyster-Mushrooms-Low-Tech/
Article on mushroom cultivation in A Stan :
http://buildingmarkets.org/blogs/afghanistan/2011/06/23/mushrooms-in-afghanistan-2/
Somewhat recent, remotely accurate ?