漳县位于甘肃省定西市南部,属黄土高原和秦岭山地的过渡地带。20世纪80年代以来,该县的浅山半干旱区和河谷川水区引进并推广了地膜覆盖栽培技术,除广泛应用于玉米、小麦和马铃薯等粮食作物的栽培外,也示范推广于蔬菜和中药材等园艺、经济作物的生产中。地膜覆盖具有显著的增温 Zhang County is located in the southern part of Dingxi City, Gansu Province. It belongs to the transitional zone between Loess Plateau and Qinling Mountains. Since the 1980s, the shallow and semi-arid areas of the county and the rivers and valleys in the valley have introduced and popularized the plastic film mulching cultivation techniques. In addition to being widely used in the cultivation of food crops such as corn, wheat and potatoes, it is also demonstrated in vegetables and herbs Materials such as gardening, cash crops in the production. Mulching has significant warming