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一、精选品种选择适合早春保护地气候条件的栽培品种是实现高产高效的关键，经实践选择中农202、中农5号、津春2号等耐低温、耐弱光的早春大棚专用品种效果好。二、培育壮苗（—)播种前准备1、浸种催芽用55℃热水浸种5～10分钟(新种子10分钟，陈种子5分钟)并不断搅拌，待水温降
I. Selection of cultivars The cultivation of cultivars suitable for climatic conditions in early spring is the key to achieving high yield and high efficiency. The special varieties of early spring greenhouse suitable for low temperature and weak light such as Zhongnong 202, Zhongnong 5 and Jinchun 2 are practically selected . Second, nurturing strong seedlings (-) Preparation before sowing 1, soaking seed germination with 55 ℃ hot soaking 5 to 10 minutes (new seed 10 minutes, Chen seed 5 minutes) and continue stirring until the water temperature drop