早春定植的瓜菜主要有喜温性的茄果类、瓜类蔬菜和喜冷凉的甘蓝、菜花等,育苗设施主要有日光温室、阳畦、塑料大棚、小拱棚等,有条件的可在温室或大棚内埋设地热线或火道加温。一、育苗时间的确定育苗时间的确定取决于蔬菜种类、育苗设施、定植方式等。一般茄果类蔬菜定植前70天左右育苗;西瓜、甜瓜、黄瓜定植前35天左右育苗;西葫芦,冬瓜、南瓜定植前25～30 Early spring planting vegetables are the main warmth of the solanaceae, melon vegetables and likes cold cabbage, cauliflower, nursery facilities are mainly solar greenhouse, sunshine, plastic shed, small shed, the conditions can be in the greenhouse or Greenhouses buried hotline or flue heating. First, the nursery time to determine the nursery time to determine the type of vegetables depends on, nursery facilities, planting and so on. General solanaceous vegetables about 70 days before planting seedling; watermelon, melon, cucumber 35 days before planting seedlings; zucchini, melon, pumpkin 25 ~ 30 before planting