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1 调查目的2 0 0 1年 ,新河地区种植的单季晚稻遭受了三化螟(俗称蛀心虫 )的严重为害 ,我校科技小组成员家中种植的水稻也同样遭受了不同程度的危害 ,因此为了分析造成为害的原因和防止今后更大规模危害的措施 ,我校科技小组学生在教师的带领下开展了调查。2 研究方法调查分
1 Survey Purpose In 2001, the single-cropped late rice planted in the Xinhe area suffered serious damage to the rice stem borer (Chilo suppressalis), and the rice planted in our home’s scientific and technological group members also suffered different degrees of harm. Therefore, in order to analyze the causes of harm and measures to prevent further harm in the future, our science and technology group students conducted a survey under the leadership of teachers. 2 research methods survey points