Fudokoku is rice in the husk kept in fudoso (a warehouse which was sealed after the regular warehouse became full) put in provinces in the ritsuryo system (a system of centralized government based on the ritsuryo code).
不動穀（ふどうこく）とは、律令制において令制国に置かれた不動倉に保管された稲穀のこと。