Masanobu Fukuoka wrote The One-Straw Revolution to describe his system of natural farming. He did not plough his fields, used no agricultural chemicals or prepared fertilisers, did not flood his rice fields as farmers have done in Asia for centuries, and yet his yields equalled or surpassed the most productive farms in Japan.
Videos
The One Straw Revolution by Masanobu Fukuoka
Natural Farming with Masanobu Fukuoka
Publications
Masanobu Fukuoka's Natural Farming and Permaculture
http://www.permaculture.com/node/140
One Straw Revolution