Around the time of Tadahira's administration, Myoden (rice field lots under the control of nominal holders) or Fumyo (tillers of public rice fields) were started; under either system, powerful farmers (the rich class) undertook management of rice fields and tax payments.
忠平執政期ごろに、有力百姓層（富豪層）へ土地経営と納税を請け負わせる名田もしくは負名が開始していた。