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近年来，迁安市迁安镇春季棚（室）已发展至１０００多个。但由于缺乏育苗技术经验，在很大程度上造成了春季棚（室）因苗情不好而效益低下。总结有关实践经验：春季棚（室）蔬菜育苗必须把好以下“四关”： 一、把好育苗准备关 一般要在１１月选房前或背风向阳处建５×３ｍ（
In recent years, Qian’an Qian’an Qian’an shed (room) has grown to more than 1,000. However, due to the lack of technical experience in nursery, largely contributed to the spring shed (room) due to poor performance and ineffectiveness. Summarize the relevant practical experience: Spring shed (room) vegetable nursery must be good to the following “four off”: First, the good nursery preparation for the general election in November before the election room or leeward to build 5 × 3m (