การประมวลอากาศเพื่อการเฝ้าระวังการระบาดของโรคไหม้ในพื้นที่เสี่ยง

Abstract

According to an empirical of rice blast severity model in Thailand derived in 2001 . The model described rice blast severity by weather index called Blast unit of severity (BUS) (Kim et al ,1987). Using BUS for rice blast early warning, a net work of experiments were conducted in rice research centers located in hotspots of rice blast epidemics in northern, north-eastern and southern area of Thailand. Weather data from various meteorological stations were compiled through algorithms for daily BUS value. Meantime, occurrence of rice blast monitoring were carried on by scouting plots in each rice research center (RRC). Monitoring result in Khon Kaen RRC, Nongkai RRC, Prae RRC, Sakon-nakorn RRC, and Pattalung RRC, preferable climate indicated on BUS values in seedling stage and slightly leaf blast occurred (LT 1 percent) . BUS values in booting/flowering stage influenced to following moderately neck blast (20 percent). Beside those RRC, in Pisnulok RRC, slightly leaf blast occurred in scouting plots due to absent of BUS value.