青海西宁地区属高寒冷凉性气候,种植大葱具有色白、无丝、味香甜、产量高等特点,深受消费者喜爱。近年来,青海高寒地区大葱种植面积逐年增大,经济效益逐年提高,成为西宁地区农业产业结构调整的主方向。高寒地区萝卜主要以早春萝卜为主,早春萝卜在4月中下旬起垄铺膜点播;大葱5月中旬定植,采用平地覆地膜后定植,但这种栽培方式特点是种植萝卜和大葱不易抽薹,缺点是大葱食用部位的假茎及长度较短,从而影 Xining, Qinghai Province is a cold and cold climate, planting green onions with color white, no silk, sweet taste, high yield, loved by consumers. In recent years, the planting area of ​​green onions in alpine areas of Qinghai Province has been increasing year by year, and the economic benefits have been increasing year by year, becoming the main direction of agricultural industrial restructuring in Xining. In the alpine region, the radish is mainly radish in early spring, and radish in early spring is draped and sowed on the middle and late April; onions are planted in mid-May and planted after covering the ground with the plastic film. However, this cultivation method is characterized by difficulty in bolting radish and green onion, The disadvantage is that the edible parts of the false stems and short length, thus shadow