露地韭菜越冬管理技术露地韭菜产量高低和品质优劣，与越冬期管理关系很大。主要管理技术如下：（一）浇好冻水。立冬后，当气温低于－５℃，地面开始结冻，韭菜地上部分停止生长，进入越冬期，要及时浇好冻水。这样，可避免地下根颈遭受冻害，防止春旱，为春季早发快长打... Exposed leek overwintering management techniques leek yield level and quality advantages and disadvantages, with a great deal of winter management. The main management techniques are as follows: (a) poured cold water. After the beginning of winter, when the temperature is below -5 ℃, the ground began to freeze, leek to stop growing on the ground, into the winter, the timely pouring of frozen water. In this way, to avoid underground root neck suffering from frost damage, to prevent spring drought, early spring for long and fast fight ...