In addition, in the latter half of the ninth century, local administrative organizations attempted to secure income through Suiko by allowing rich people and influential farmers in local areas to undertake the management of Ku-Suiko after admitting the private warehouse possessed by those people to be Shoso (Riso).
更に9世紀後半には、地域の富豪・有力百姓らの私倉を正倉と認め（里倉）、彼らに公出挙運用を請け負わせることで、地方機関の出挙収入の確保が図られるようになった。