棉秸机械还田①易福华江苏省盐城农垦农科所２２４３１４江苏省国营新洋农场位于射阳县境内，年平均温度１３．８℃，土质轻壤到沙壤。过去棉花以春茬直播为主，收花结束期在１１月底前后，此时种麦已为时太晚，麦子只套种在棉行中，棉花宽窄行种植，大行可用手扶拖拉机旋... Cotton straw mechanical return ① Yi Fuhua Jiangsu Province Yancheng Reclamation and Agricultural Sciences 224314 State-owned Xin Yang farm in Jiangsu Province Sheyang County, the average annual temperature of 13.8 ℃, soil light soil to sandy soil. In the past, cotton was mainly broadcast on spring stubble, and the end of flower collection was around the end of November. At this time, it was too late for wheat to be planted. Wheat was only planted in the cotton line and cotton was planted in wide and narrow lines. .