由日本引进的旱育秧及其配套技术,采用日平均气温7～8℃开始播种的物候指标,这一指标在本地具体表现为3月10日前后播种。由于常用的早籼品种耐寒性弱,能否比传统水育秧提早15～20天播种并安全育秧,我们缺乏经验。为此应用了抗寒性强的早粳品种,一方面看其能否提高育秧质量,一方面看 The dry nursery seedlings introduced by Japan and their supporting technologies use the phenological indicators of sowing at the daily average temperature of 7-8 ° C. This indicator is sown in the local area around March 10. Due to the weaker cold tolerance of commonly used indica varieties, we can sow and grow safer seedlings 15 to 20 days earlier than traditional aquaculture seedlings, and we lack experience. To this end, the application of early cold resistance of japonica varieties, on the one hand to see if it can improve the quality of seedling, on the one hand