2024年7月18日 星期一 19:43:55

甘蔗套种马铃薯技术

     一、品种选择:甘蔗:奥糖93/159。马铃薯:合作88、胜利2号、会—2号。

     二、种植时间:

      1、新植蔗套种:马铃薯11月20日种植—12月下旬结束。甘蔗12月种植—次年1月结束。采用机械化深犁深松,做到深、松、碎、平

      2、宿根蔗套种:甘蔗12月砍收,马铃薯12月种植—次年月中旬种植结束。采用机械化进行甘蔗破垄松蔸后,将切好的马铃薯下种,并用松蔗蔸的土进行覆盖。

      三、下种量:

       马铃薯每亩用种量为250—300斤,根据薯芽的多少进行切块,每个薯块留2—4个芽。甘蔗每亩用种量为800—900公斤,砍成双芽苗,用2%的石灰水浸种。

       四、行距:
       甘蔗采用行距110厘米,并把行距整理成墒,并用锄具打一条深5厘米、宽20厘米的种沟,马铃薯株距为15—20厘米

       五、施肥量:
       马铃薯种植每亩拌施农家肥1000公斤(或普钙150公斤)、复合肥40公斤、尿素20公斤、硫酸钾5公斤、农药1公斤,将切好的籽种切口向下摆,然后用开甘蔗的沟的土来盖马铃薯,盖土厚20—30厘米。甘蔗种植每亩施复合肥60公斤,尿素10公斤、农药4公斤。
六、田间管理:
       马铃薯种植15天左右,开始出土,30天左右齐苗,每亩施尿素40公斤。收获马铃薯前,先揭除甘蔗地膜,再挖马铃薯,并把马铃薯茎、叶还田,同时每亩施尿素20公斤、普钙20公斤、农药4公斤施于甘蔗苗基部,进行小培土,培土后喷洒除草剂。以后甘蔗生产管理与大田管理相同。

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