1　前　言汉中市马铃薯地膜栽培始于 1986年 ,到 1996年发展到了 6 0 0多公顷 ,且多集中栽培于城郊和重要集镇周围 ,1997年以来 ,由于省市农技部门对马铃薯三项技术 ,特别是地膜栽培技术的推广 ,辅之以市场的调节作用 ,使种植面积逐年上升 ,1998年达到 4 6 2 0公顷。 1996～ 19 1 Introduction Hanzhong potato film cultivation began in 1986, to 1996 to more than 600 hectares, and more concentrated cultivation in the suburbs and around the important market town since 1997, due to the provincial agricultural sector of the three technologies of potatoes, In particular, the promotion of plastic film cultivation techniques, supplemented by the market’s regulatory role, has resulted in a year-on-year increase in the area planted to 46,600 hectares in 1998. 1996 ~ 19