2014年扬州市邗江区稻曲病发生特点及重发原因研究

Study on Occurence Characteristics and Reason of Rice False Smut of Hanjiang District in Yangzhou City in 2014

通过对扬州市邗江区大面积稻曲病调查研究,结合本地区的气候条件,分析了2014年邗江区稻曲病的发生特点及重发原因。针对稻曲病防治难度较大这一现状,提出了稻曲病综合防治新对策,即推广抗性较强的水稻品种,降低穗期的氮肥用量,气候条件有利的条件下在破口前防治1次,在破口期结合稻瘟病再用药防治1次。

Through the investigation study on large area of rice falsesmut of Hanjiang District in Yangzhou City,combining with climatic conditions in the region ,occurence characteristics and reason of rice false smut of Hanjiang District in Yangzhou City in 2014 were analyzed.Aimed at the large difficult prevention status, new prevention countermeasures of rice false smut were put forward, including extension of stronger resistance rice varieties ,reduction the period of nitrogen fertilizer ,prevention one times before the breach period under favourable climatic conditions ,prevention once again in the breach period combined with rice false smut.