Not to sound contrary... but if their techniques are better, why haven't they been replicated widely? If they can output just 20% better financial return, they will double the profits for most farmers.

Understand that it is my wish and hope that these sort of low/no fertilizer organic techniques can work better than "traditional" heavy-fertilizer/irrigation farming the west now mainly employs. It's just that vaguely recall hearing about this sort of thing 30 years ago. And 20 years ago. And 10 years ago.