Such a monistical land ruling was called Ichien chigyo (monistical ruling), and the Jitouke that jito undertook to collect nengu in place of shoenryoshu (lord of manor) or kokushi began.
このような一元的支配を一円知行といい、一円内の年貢を地頭が荘園領主や国司に対して請け負う地頭請が行われ始めた。