摘要
为对黑龙江省稻瘟病的预报和防治提供指导,从气象条件对水稻稻瘟病的影响出发,选择6月下旬降雨量、8月下旬湿度2个指标,运用多元统计中的系统聚类法将黑龙江省33个主要水稻种植区域稻瘟病发病情况进行分类。结果表明,所选指标与稻瘟病流行指数密切相关,可将这33个地区划分为3类。
In order to forecast and control the rice blast, this passage begins with the influence of weather condition to the rice blast, and chooses the rainfall of the last ten-day of June and the humidity of last ten-day of August as the indexes and uses the system cluster to sort the 33 regions growing rice in Heilongjiang province. The results show that the indexes are closely related to the rice blast epidemic index. These 33 regions can be sorted into three types.
出处
《黑龙江八一农垦大学学报》
2008年第4期23-26,共4页
journal of heilongjiang bayi agricultural university
关键词
黑龙江省水稻稻瘟病
系统聚类
区域划分
rice blast in Heilongjiang province
system cluster
regional division
