For those that want an overview of the 'whole field of behavior change that CGIAR has not tapped into', this book which reviews much of what has been done in the field of 'communication for rural innovation' could be interesting: https://onlinelibrary.wiley.com/doi/10.1002/9780470995235.fmatter/pdf
For those that want an overview of the 'whole field of behavior change that CGIAR has not tapped into', this book which reviews much of what has been done in the field of 'communication for rural innovation' could be interesting: https://onlinelibrary.wiley.com/doi/10.1002/9780470995235.fmatter/pdf
see also this summary article in the IDS bulletin special issue Abby referred to: https://onlinelibrary.wiley.com/doi/10.1111/j.1759-5436.2012.00363.x/abst...
This work also notes that individual behaviour change of farmers is not sufficient, but work at several levels in 'innovation systems' is needed.