Creating demonstration farms would help, as would carrying out system - scale research to evaluate what works best to adapt specific practices to general principles in different settings. (scientificamerican.com)
They also set up a research and demonstration farm site, prepared training manuals and videos, and supported 11 key farmers to take the lead on agricultural innovations. (scientificamerican.com)
If the interns then become active in their own communities and also become demonstration farms too... training their own new interns.... (realclimate.org)