There is this really excellent
video of
Fukuoka on youtube, about 1 hour long.
I did a full transcription of the video because I believe Fukuoka's message is important. He makes a lot of his key points explicitly so this is a good concise introduction.
"Fortunately, after 60 years practice
There is no cultivation, no fertilizer, no chemicals, no weeding
I finally can grow any crop with natural farming
Natural farmer says no to science.
All sciences, no.
No thank you, no nothing!
Only scattering clay balls
These are the mixture of science, philosophy, and religion"
Read on at:
http://www.gardenfood.org/2013/04/natural-farming-with-masanobu-fukuoka.html
Cheers