由于北方高寒地区无霜期短 ,因此提高复种指数以及延长结果期是保证产量效益的重要手段。而育苗又是解决其问题的关键措施。早甘蓝作为春季的主要蔬菜 ,其熟期、产量和效益对人民生活的影响很大。而培育适龄壮苗是早熟、丰产、高效的基础。影响壮苗的因素很多 ,本试验主要研究 Due to the short frost-free period in the alpine region of northern China, increasing the multiple cropping index and prolonging the fruiting period are important measures to ensure yield. Seedling raising is also the key measure to solve its problems. Early spring cabbage as a major vegetable in spring, its maturity, yield and benefits have a great impact on people’s lives. And nurturing age-appropriate seedlings is precocious, high yield, efficient basis. Many factors affect strong seedlings, the main study of this experiment