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三、壮秧早栽密植壮秧早栽,适当密植,是抗寒栽培的一项重要内容。实践证明:壮秧长势稳健,抗寒力强,适于早栽,缓苗快,分蘖成穗多,早熟高产。近年我省试验和推广了水稻薄膜旱育苗和隔离层育苗,收到了抗御低温冷害,促进水稻早熟高产的明显效果。旱育苗一般具有壮秧的特点,据调查,旱苗在平均气温12～13℃的5月上旬移栽,能顺利缓苗。比湿润苗早缓苗、早分蘖7～8天,早抽穗5～7天.早成熟5天以上再从产量构成因素分析每亩能增加1～5
Third, strong seedling early planting Closely planting strong seedling early planting, appropriate close planting, is an important part of cold cultivation. Practice has proved that: Strong growth of strong seedlings, cold and strong, suitable for early planting, slow Huanmiao, tiller into more spikes, early maturity and high yield. In recent years, our province experimented and popularized rice seedling nursery and isolation nursery seedlings, and received the obvious effect of resisting low temperature and cold damage and promoting the yield of rice. Dry nursery seedlings have the general characteristics of strong seedlings, according to the survey, dry seedlings in the average temperature of 12 ~ 13 ℃ transplanting in early May, can be smooth Huanmiao. Early germination than Miao Miao, early tillering 7 to 8 days, early heading 5 to 7 days. Early maturity of more than 5 days and then from the yield component analysis can increase 1 to 5 per acre