The combination of inputs that achieved that success is well-known and some lessons may yet be relevant. The basic principles, however, are quite clear. Production of the relevant items has to be increased, mostly by increasing productivity. Cultivation risks have to be mitigated for farmers to find these products more attractive.
Transportation, storage and distribution efficiency have to be increased to keep losses and distribution margins down. These may seem obvious points, even clichés, but there is no getting around them. There will be some generic strategies and some crop-specific ones, which makes it worthwhile to approach the problem from a wider perspective.