洋葱在可以露地越冬地区,冬前定植产量高。秋季育苗的洋葱定植方式有两种:一是冬前定植,一是早春定植。一般说,冬前定植的洋葱,小苗在各自的冬前即完成了缓苗阶段,第二年早春小苗萌动后,即开始营养器官的生长;而早春定植的洋葱,则是在第二年早春小 Onions can be exposed to winter areas, winter planting high yield. Autumn nursery onion planting in two ways: First, pre-winter planting, first, early spring planting. In general, pre-winter planting onion, seedlings in their respective pre-winter to complete the Huanmiao phase, the second spring of early spring seedlings germination, that is, the growth of vegetative organs; and early spring planting onions, it is the second year in early spring small