There are certain aspects that I’d like to go into with with this topic...
I think focussing in on changes in more recent times, snapshots of 300, 200, 100 years ago and now might be an efficient way. I think also seeing the specific crops that have developed in certain areas in those times (like areas with volcanoes vs. areas by the sea) and how that has affected the food culture there, in Kyushu and, possibly all of Japan. With that, I think seeing how agricultural processes has developed and affected food cultures and how that might be at a risk with
the lack of interest in the young generation.
For resources and backgrounds materials I’d like to find information on early agriculture in Kyushu and the regional specialities and how they came about. If it is at all possible maybe personal accounts. I was thinking of contacting some people I met in Japan and seeing if it is possible to get more of their family history in the area of agriculture. Despite some of the things we have read, I still believe that Japan is very agriculturally based and even partly preserved in those lifestyles - though not necessarily just around one crop (rice).