水稻早穗发生的原因及预防

阐述了水稻早穗的概念;分析了种植熟期太早的品种是寒地水稻产生早穗现象的主要原因,春夏高温是水稻早穗的必要条件;指出播种量过大、棚温过高等不当技术措施也会出现早穗;针对早穗产生的原因提出了选择适宜品种、早熟品种不育大苗、适当稀播、加强秧苗适温管理等4项预防措施。

Occurrence Cause of Rice Fringes Coming out in Seedling Stage and Its Control

Set forth the concept of rice fringes coming out in seedling stage.The main occurrence cause is plant the variety whose mature time is early.The necessary condition is high temperature in spring and summer.In addition,some inappropriate measures may make it happen too that seeding amount is large and the temperature is high in room.So advance four terms of countermeasures that select appropriate variety;early-maturing variety don't raise big seedlings;sowing is scarce in proper and management of appropriate temperature is reinforce.