曹操迎献帝于许昌后,以“夫定国之术,在于强兵足食”为方针,在许昌附近实行屯田。结果“募民屯田许下,得谷百万斛”。因此,操设置田官于各州郡内,招募流民屯田,把屯田制加以推广,以改东汉末年军阀混战所做 Cao Ying Ying Xian Di in Xuchang, in order to “husband of the law of the country, is strong enough food ” for the principle of implementation in Tunchang near Xuchang. The results “raising the people Tuntian field, get Valley million Husbands ”. Therefore, the operation of the establishment of field officers in the prefectures, the recruitment of migrant workers Mita, Tuen Tin system to be promoted in order to change the last years of the Eastern Han Dynasty warlord made