菠菜在河北张家口市坝上地区从4月下旬到8月上旬均可播种,具有抗寒性强、适应性广、生育期短、可机播、易管理、产量高的特点,近年已成为坝上越夏主要绿叶蔬菜之一。但在栽培过程中,存在品种单调问题,主栽品种只有帝沃二号。随着近几年来菠菜种植面积不断扩大,农民自发引进品种繁杂,加上坝上地区特殊的气候条件,夏季菠菜生产常出现抽薹过早,霜霉病发病重现象,使得农药用量大幅增加,农户投入增加,作物减产,所产菠菜食用不安全, Spinach in Zhangjiakou City, Hebei Bashang region from late April to early August can be sown, with strong cold resistance, wide adaptability, short growth period, machine sowing, easy management, high yield characteristics, in recent years has become a dam One of the main green leafy vegetables on the summer. However, in the cultivation process, there are varieties of monotonous problems, the main cultivars only Diwo II. With the continuous expansion of spinach planting area in recent years and the complicated introduction of varieties by farmers, combined with the special climatic conditions in Bashang area, the frequent occurrence of bolting and frequent occurrence of downy mildew in summer spinach production led to a sharp increase in the amount of pesticide used by farmers Increased investment, crop cuts, the spinach eaten unsafe,