When I first started attending seminars of the Home Orchard Society, someone brilliant like Ted Swensen or Will Newman would talk about the intricacies of soil microbiology and I couldn't understand what they were saying. I knew it was really good, but I had to hear it like four times to get the whole process and why it was important. A professor at a college in Iowa has developed these short videos to let people see what it is we're talking about in terms of bacteria, soil, fungi, nematodes, etc.
John S
PDX OR

http://agron-www.agron.iastate.....achan/mov/