日本寒葱是山东省菏泽地区特优瓜菜研究所从日本寒葱中选育培育成功的高抗寒大葱优良品种。该品种一般立秋前后 1 0日内育苗 ,1 0月栽培 ,春天上市 ,冬季不需保护。入冬以后 ,寒流到来之前浇好封冻水。大寒过后 ,立春将至 ,北方气温逐渐回升 ,要及时浇水、施肥。前期气温低 ,可 Japanese cold onion is the Heze region in Shandong Province gifted vegetables Institute from Japan, cold onion in the breeding of high-quality cold-resistant varieties of green onions. The species generally 10 days before and after the beginning of autumn nursery, 10 months cultivation, spring market, winter without protection. After entering the winter, cold water poured before the arrival of frozen water. After the cold, the beginning of spring approaching, the northern temperature gradually picked up, to be timely watering, fertilization. Pre-low temperature, can