寒地水稻白穗产生原因及防治对策

Reason and Countermeasures about White Paddy in the Cold Region

自2002年以来水稻白穗在黑龙江省大面积发生,现已成为影响寒地水稻生产最为严重的因素之一。分析其产生原因主要为水稻品种不抗病,气候条件有利于发病,栽培管理不当加重白穗的产生,另外,二化螟也是产生白穗的因素之一。针对其产生原因应采取相应的措施:选用抗病品种,适当推迟播种期,科学管理以及正确的药剂防治。

The white paddy took place in large area of Heilongjiang province since 2002. It become one of the most serious factors to the rice production in the cold region. The main reason was the species not anti-disease, the weather condition fit to the disease outbreak and the nonappropriate cultivation management aggravated the creation of white paddy. Furthermore,Chilo suppressalis was also one of the factors. Therefore, we should adopt homologous measure： Choose anti-disease species, postpone to sow seeds,apply scientific management and medicine prevention rightly.