水稻机插秧僵苗对产量影响大,一般可减产50kg左右。我们通过2年的生产实践和调查研究,已经初步掌握僵苗发生的原因和预防办法。1僵苗症状表现僵苗的共同点是植株矮小,叶片细瘦,直立不披,稻丛呈簇立状,根细而稀,新根少。因发僵程度不,长相长势有所区别,大致可分3个阶段:发僵初, Rice seedling transplanting seedlings impact on the yield, generally reduce production about 50kg. Through 2 years of production practice and investigation, we have initially mastered the causes and preventive measures of the phenomenon of stiff seedlings. A strong symptoms of stiff seedlings Miao common features are plants dwarf, thin leaves, upright without Phyllophyta was clustered, root thin and thin, the new root less. Due to the degree of stiffness is not, looks different, roughly divided into three stages: stiff early,