天津市武清县农业技术推广中心 邵凤成 陈胜利 孙桂凤 张玉敏（ 301700） 洋葱为百合科葱属 2～ 3年生草本植物，在我国广大地区均有种植。华北、东北地区冬季寒冷，露地栽培的洋葱秧苗在原地保护的情况下仍不能正常越冬。所以，华北、东北地区常采用秋季播种，冬季假植越冬， Wuqing County, Tianjin Agricultural Technology Promotion Center Shao Fengcheng Chen Shengli Sun Guifeng Zhang Yumin (301700) Onions are Liliaceae Allium 2 or 3 year-old herbaceous plants, in our vast areas are planted. In northern China and northeast China, the winter cold and open-field onion seedlings could not survive the winter in situ. Therefore, the North China and Northeast China often use autumn sowing, wintering winter planting,