Kanno is a term covering very wide-ranging concepts, it included the maintenance of irrigation facilities, lend-lease and benefit of seeds and agriculture fees ("suikyo," land lease at interest was also included), the allocation of farm lands, the organization of the agricultural labor, the development of denuded lands, the up-down adjustment of the tax rate, and so on.
勧農は非常に広い概念を有する語であり、例えば、潅漑用水の整備・維持、種子・農料の貸与・給付（出挙もこれに含まれる）、耕地の配分、農業労働力の組織編成、荒廃地の開発、税率の上下調整などが含まれていた。