Analysis of information sources in references of the Wikipedia article "Permaculture" in English language version.
Bill Mollison, often called the 'father of permaculture,' worked with indigenous people in his native Tasmania and worldwide, and credits them with inspiring his work. "I believe that unless we adopt sophisticated aboriginal belief systems and learn respect for all life, then we lose our own," he wrote in the seminal Permaculture: A Designers' Manual.
All the permaculture farms we visited had large, fully-functioning vermicompost which produced fertilizer that was naturally rich in nutrients and acid that was used as a substance for fumigation instead of synthetic based substances.
This focus in permaculture on learning from indigenous, tribal and cultures of place is based on the evidence that these cultures have existed in relative balance with their environment, and survived for longer than any of our more recent experiments in civilisation.