研究不同程度的Cd胁迫下多种效态Si对低积累品种水稻生长的影响效果

Study on the effect of various effective states of Si on the growth of low accumulation rice under different levels of Cd Stress

通过试验,研究了在中度Cd污染偏酸性土壤中分不同实验处理下的修复效果以及水稻对Cd的富集效应。结果表明:五种不同的修复措施都对土壤的理化性质产生了一定的影响,其中pH值均升高,且最高可以达到2个以上的单位;且P4+Si的修复措施最佳,大大降低了Cd在土壤中的活性。相较对照组的作物稻米中Cd含量降低最大达到21.39%。

Through experiments,the effects of different treatments on the remediation of moderate Cd Polluted acid soil and the enrichment of CD by rice were studied.The results showed that:five different remediation measures had a certain impact on the physical and chemical properties of soil,in which the pH value increased,and the highest can reach more than 2 units;and P4+Si remediation measures were the best,greatly reducing the activity of Cd in the soil.Compared with the control group,the maximum reduction of Cd content in rice was 21.39%.