Rice fields directly managed by upper class feudal lords, such as head family and ryoke, may be called tsukuda while rice fields directly managed by lower class feudal lords, such as shokan and jito, may be called shosaku and yujaku to differentiate.
本家・領家など上級領主による直営田を佃とし、荘官・地頭など下級領主によるものを正作・用作として区分することもある。