春季蔬菜保护地育苗技术讲座 第一讲 育苗程序、设施和设备

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育苗程序是指育苗生产流程的几大步骤.近些年来,蔬菜育苗程序改革试验和推广结果证明,以电热温床和催芽室为设备前提的二级和三级育苗程序,可以克服过去常规育苗程序中土温低、营养面积不足等缺点.其中,二级程序为温室内电热温床播种出苗、育籽苗和小苗→塑料大、中棚育成苗;三级程序为催芽室播种出苗→温室育籽苗和小苗→塑料大、中棚育成苗.各地可根据自己需要及条件选用以上育苗程序.各种育苗程序都以相应的育苗设施及设备为前提,当前普遍被采用和正在推广的主要有以下几种: Nursery procedure refers to several major steps in the process of nursery production.In recent years, the experiment and promotion results of vegetable nursery program reform prove that the secondary and tertiary nursery procedures based on electric hotbed and germination room can overcome the problems of conventional nursery programs Medium and low temperature, lack of nutrients and other shortcomings.Among them, the second program for the electric hothouse hothouse sowing seedlings in the greenhouse, seedling and seedlings → plastic large, middle shed nursery seedlings; three procedures for germination germination seedling → greenhouse seedling Seedlings and seedlings → plastic large, nursery seedlings in the growing.According to their needs and conditions can be selected around the above nursery procedures.A variety of nursery programs are based on the corresponding nursery facilities and equipment as the prerequisite, the current widespread adoption and promotion are the following Several:
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