水稻纹枯病的发病因子及防治方面几个问题的探讨

• 作 者: 杨德金 朱睦钧
• 机 构: 金华市农业局,金华市病虫测报站,
• 出 处: 浙江农业科学
• 发表日期: 1983年06期
• 关键词: 水稻纹枯病 因子 早稻 栽培管理措施 观察试验 田间小气候 综合防治 宽行窄株 水稻种植方式 井冈霉素

水稻纹枯病是我市早稻的重要病害。随着施肥水平和密植程度的提高,栽培管理措施一时跟不上去,因而病情有加重的趋势。为了有效地防治纹枯病,我们进行了发病因子和综合防治的观察试验。一、发病因子水稻纹枯病的发生是病源和田间小气候综合作用的结果,据我们观察,与下面诸因子关系较密切。

Rice sheath blight is an important disease of early rice in our city. With the improvement of fertilization level and planting density, cultivation management measures could not keep up for a time, so the condition tended to aggravate. In order to effectively control the sheath blight, we carried out the observation of the incidence of factors and comprehensive prevention and control. First, the etiological factor The occurrence of rice sheath blight is the result of a combination of pathogenic and microclimate in the field. According to our observation, the following factors are closely related.