水稻从秧田移栽到大田经返青成活后就进入分蘖期,这是决定稻穗多少及大小的重要生长时期。抓好这一时期的管理工作,对于争取水稻穗多穗大,提高产量有着重大意义。一、浅水管理。水稻分蘖期,稻田水层不宜过深。一般以1～1.5寸水深较为适宜。无水或水过浅,稻田易干枯或开裂,不利水稻分蘖。水过深,土温变低,根系发育不良,分蘖缓慢,尤其是深脚冷浸烂泥田,轻 Rice transplanting from the seedling to Daejeon via rejuvenation into the tillering stage, which is important to determine the size and size of rice growth period. Doing a good job in this period of management, for more rice spike paddy, increase production is of great significance. First, shallow water management. Rice tillering stage, paddy water layer should not be too deep. Generally 1 to 1.5 inches of water depth is more appropriate. Water or water is too shallow, paddy fields easy to dry or cracking, unfavorable rice tillering. Water is too deep, soil temperature becomes low, root system dysplasia, slow tillering, especially deep cold soaking muddy soil, light