黄土高原马铃薯晚疫病潜势预报及防治对策

Potentiality Prediction of Potato Late Blight in the Loess Plateau and Its Control Countermeasures

本研究应用黄土高原典型区域马铃薯晚疫病观测资料,分析了气象因子与马铃薯晚疫病扩散流行的关系,建立了马铃薯晚疫预测模型。结果表明,马铃薯晚疫病发病率与环境湿度、大气降水量、空气温度成正相关关系,与光照时数、风速成负相关关系,持续阴雨天气有利于晚疫病扩散流行。本研究建立了马铃薯晚疫病扩散流行预测预报模式,以期为马铃薯晚疫病防控提供科技支撑。

Based on the observation data of potato late blight in typical areas of the Loess Plateau,the relationship between meteorological factors and the diffusion of potato late blight was analyzed,and the prediction model of potato late blight was established.The results showed that the incidence rate of potato late blight was positively correlated with environmental humidity,atmospheric precipitation and air temperature,and negatively correlated with sunshine duration and wind speed.The continuous cloudy and rainy weather was conducive to the diffusion of late blight.In this study,the diffusion and epidemic prediction model of potato late blight was established,in order to provide scientific and technological support for the prevention and control of potato late blight.