利用快中子活化分析研究水稻、土壤中硅含量与稻瘟病的关系

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本试验采取 kR-400T 型加速器产生的14兆电子伏快中子,产额为10~(10)中子/秒。植物和土壤样品均采用相对分析法。1.不同稻区的44个土壤样品中,全硅含量为27.37—39.91%,平均为31.82%。2.水稻样品中硅含量与稻瘟病发病率之间,有含硅多发病轻,含硅少发病重的趋势。3.施用硅肥可提高水稻植株中硅含量。 In this experiment, 14 trillion electron fast neutron produced by kR-400T accelerator was used, and the yield was 10 ~ (10) neutron / second. Plant and soil samples are used relative analysis. Among the 44 soil samples from different rice areas, the total silicon content was 27.37-39.91% with an average of 31.82%. 2. Between the silicon content of rice samples and the incidence of blast, there is a slight incidence of silicon-containing silicon, silicon-less incidence of the trend. 3. Application of silicon fertilizer can increase the silicon content in rice plants.
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