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第一完成单位：该项研究在揭飞虱猖沥程度长期预测和初始虫源地探索方面取得重要进展，探明了中南半岛是导致我国主要稻区褐飞虱猖极的主要虫源地，并将初始虫源地一直向南追朔到泥公河三角州；查明涓公河三角州10月和11月的降水量，以及北部红河三角州3月的降水量和气温，分别
First Completed Unit: The study has made important progress in long-term prediction of pest free rodents and exploration of the original source of insects. It is proved that Indo-South Peninsula is the main source of the brown planthopper in China’s main rice paddies and will The initial source has been traced back to the south of the Mud River Delta; identify the Delta River Delta in October and November precipitation, and the northern Red River Delta in March of precipitation and temperature, respectively