Effect of Amendments on High Concentration Lead-contaminated Soil in Guangxi
In order to reduce the harm of high lead-contaminated soil to crops,three additives of superphosphate,organic fertilizer and phosphorus rock powder were used to explore the remediation effect on high lead-contaminated soil in Guangxi through pot experiments.The results showed that compared with the control group T0,the application of superphosphate,organic fertilizer and phosphorus rock powder significantly reduced the harm of lead poisoning(P＜0.05)to different degrees,reduced soil pH and soil DTPA-Pb,water soluble Pb content,improved the survival rate and biological yield of pakchoi,and reduced the enrichment coefficient of lead in pakchoi.The above amendments can be used as the preferred improvement materials for high lead-contaminated soil in Guangxi.
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