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针对目前东北地区较易发生玉米低温冷害、不易诊断、数据获取时效性差、诊断参数代表性差等不足,研究构建一个准确、便捷的玉米低温冷害监控与远程诊断系统。通过总结东北地区玉米低温冷害领域专家的经验,结合多年的历史气象资料,对初终霜日期进行宏观预测,根据田间观测的适时环境参数对低温冷害作出及时准确判断和预测。在玉米灌浆期对该系统进行了验证和应用,得到很好的预期效果。初步构建了一个基于Web技术的玉米低温冷害远程诊断与管理系统,为玉米低温灾害的监控和诊断提供了准确、及时、便捷的途径。
In view of the fact that northeast China is prone to maize chilling damage, difficult to diagnose, poor data availability and poor representativeness of the diagnostic parameters, a accurate and convenient maize low temperature chilling injury monitoring and remote diagnosis system is constructed. By summarizing the experiences of experts in the field of maize chilling injury in northeast China and combining with historical meteorological data for many years, the date of initial and final frost was predicted macroscopically and the timely and accurate prediction and forecast of chilling damage was made according to the timely environmental parameters of field observation. The system was verified and applied during the corn filling stage, and the expected result was very good. A remote diagnosis and management system based on Web technology for low-temperature chilling injury was preliminarily established, which provided an accurate, timely and convenient way for the monitoring and diagnosis of maize low-temperature disasters.