Based on investigation materials of the occurrence degree of rice sheath blight, long period prediction models were built by means of correlative analysis with several predisposition factors.

根据水稻纹枯病发生与危害程度的调查资料，经与各诱病因素的相关性分析，组建成早、晚稻纹枯病的长期预测模型。

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Genetic studies on rice resistance to sheath blight were slow in that ideal resistant resources and effective method to identify resistance to rice sheath blight were short.

由于缺乏理想的抗源、有效的鉴定方法，致使水稻纹枯病抗性遗传研究相对滞后。

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A field experiment was conducted to investigate the development rule of rice sheath blight in rice-duck-fish complex ecosystem. A model was established based on experiment data.

通过田间试验，对稻-鸭-鱼共栖生态系统中水稻纹枯病的发生规律进行了研究并建立了相应的数学模型。

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