The Plant Pathology Journal

한국식물병리학회 (The Korean Society of Plant Pathology)
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A Web-based Information System for Plant Disease Forecast Based on Weather Data at High Spatial Resolution

  • Kang, Wee-Soo (Department of Agricultural Biotechnology, Seoul National University) ;
  • Hong, Soon-Sung (Gyeonggi-do Agricultural Research and Extension Services) ;
  • Han, Yong-Kyu (Epinet Corporation, Business Incubator, Seoul National University) ;
  • Kim, Kyu-Rang (National Institute of Meteorological Research, Korea Meteorological Administration) ;
  • Kim, Sung-Gi (Gyeonggi-do Agricultural Research and Extension Services) ;
  • Park, Eun-Woo (Department of Agricultural Biotechnology, Seoul National University)
  • 투고 : 2009.10.27
  • 심사 : 2009.11.18
  • 발행 : 2010.03.01
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초록

This paper describes a web-based information system for plant disease forecast that was developed for crop growers in Gyeonggi-do, Korea. The system generates hourly or daily warnings at the spatial resolution of $240\;m{\times}240\;m$ based on weather data. The system consists of four components including weather data acquisition system, job process system, data storage system, and web service system. The spatial resolution of disease forecast is high enough to estimate daily or hourly infection risks of individual farms, so that farmers can use the forecast information practically in determining if and when fungicides are to be sprayed to control diseases. Currently, forecasting models for blast, sheath blight, and grain rot of rice, and scab and rust of pear are available for the system. As for the spatial interpolation of weather data, the interpolated temperature and relative humidity showed high accuracy as compared with the observed data at the same locations. However, the spatial interpolation of rainfall and leaf wetness events needs to be improved. For rice blast forecasting, 44.5% of infection warnings based on the observed weather data were correctly estimated when the disease forecast was made based on the interpolated weather data. The low accuracy in disease forecast based on the interpolated weather data was mainly due to the failure in estimating leaf wetness events.

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참고문헌

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