| 王邦芬，张崇玉.不同钝化剂对鸡粪有机肥还田重金属 （Cd、Cr、Pb）的钝化作用[J].广东农业科学,2015,42(8):38-43 |
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不同钝化剂对鸡粪有机肥还田重金属 （Cd、Cr、Pb）的钝化作用 |
| Effects of different passivators on heavy metals(Cadmium /Chromium/ Plumbum) in soil withchicken manure organic fertilizer |
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| DOI： |
| 中文关键词: 钝化剂 鸡粪有机肥 重金属形态 连续提取法 |
| 英文关键词: passivator chicken manure organic fertilizer metal speciation sequential extraction |
| 基金项目: |
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| 摘要点击次数: 1534 |
| 全文下载次数: 833 |
| 中文摘要: |
| 以烤烟为供试植物，采用土培盆栽试验方法，利用连续提取法研究了不同混合钝化剂对发酵鸡粪生
物有机肥还田重金属Cr、Cd、Pb的钝化作用。结果表明（1）向土壤中施加钝化剂会使土壤 pH升高，但不会影响
烤烟植株的正常生长；（2）施加不同混合钝化剂的土壤重金属（Cd、Cr、Pb）交换形态分配率与植株中重金属含量
变化基本一致，无显著差异；（3）不同钝化剂对不同重金属钝化效果不同，粉煤灰 + 膨润土组合是重金属（Cd、
Cr、Pb）钝化最理想的钝化剂，与对照处理相比交换态 + 碳酸盐结合态分配率降幅分别达 27.79%、14.91% 和
12.45%，粉煤灰+草炭和海泡石+钾长石组合钝化效果次之，而沸石+膨润土、沸石+草炭和粉煤灰+沸石组合
钝化效果最差。 |
| 英文摘要: |
| Taking tobacco as the research plant，by pot culture test method，the influences of different passivatorson the heavy metals（ Cd，Cr，Pb） contained in soil with chicken manure bio-organic fertilizer were studied with themethod of continuous extraction. The results showed that the application of passivator made the soil pH increased，buthad no effect on the normal growth of flue-cured tobacco plants. Applying different passivators could reduce the percentof exchangeable heavy metal as same as the amount of heavy metal in plant，and there was no significant differenceamong the different treatments. Different passivators had different effects on each heavy metal，fly ash + bentonitecombination was the best passivator for heavy metals，compared with the control treatment，exchangeable and carbonatefraction distribution rates of Cd，Cr and Pb in fly ash + bentonite treatment decreased by 27.79%，14.91% and 12.45%，respectively. The passivation effects of fly ash + peat and sepiolite + K-feldspar treatments were less than that of fly ash+ bentonite treatment，and the passivation effects of zeolite + bentonite，zeolite + peat，and fly ash + zeolite treatmentswere the worst. |
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