Wet-field rice basically *is* a type of hydroponics/aquaculture. It's *incredibly* productive, a lot of the nitrogen-fixing is done by algae growing in the wet fields. There can also be seasonal fish and ducks in the fields, so you can get more protein than you might expect. So: think food of south China/southeast Asia: rice, fish, duck, shrimp, bok choy and other oriental cabbage, lemongrass, cilantro & other herbs. Growing the rice productively, enough to feed people, would mean that the rice "fields" should be really bright, hot, and humid: think Java or Bangladesh.