| 黄 庆 1
，张建文 2，黄连喜 1
，魏 岚 1
，黄玉芬 1
，杨晓娟 3，许桂芝 1
，刘忠珍 1.生物炭 + 碱渣钙镁肥对镉污染土壤、花生产量和品质的影响[J].广东农业科学,2019,46(10):48-55 |
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生物炭 + 碱渣钙镁肥对镉污染土壤、花生产量和品质的影响 |
| Effects of Biochar + Calcium-magnesium Fertilizer Made of Soda Waste on Cd-polluted Soil, Yield and Quality of Peanut (Arachis hypogaea L.) |
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| DOI：10.16768/j.issn.1004-874X.2019.10.008 |
| 中文关键词: 生物炭 碱渣钙镁肥 镉污染土壤 花生 |
| 英文关键词: biochar calcium-magnesium fertilizer made of soda waste Cd-polluted soil peanut (Arachis hypogaea L.) |
| 基金项目:广东省科技计划项目（2017A020203001，2017B020203002）；广东省农业科学院创建市县农科所联系专家制及人才培训项目（2019 联系 01-13）；广东省农业技术研发项目（2018LM2157） |
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| 中文摘要: |
| 【目的】验证生物炭 + 碱渣钙镁肥对重金属镉（Cd）污染土壤的改良效果。【方法】在习惯施肥
NPK 对照的基础上，设置生物炭 20 t/hm2、碱渣钙镁肥 3 t/hm2 和生物炭 20 t/hm2+ 碱渣钙镁肥 3 t/hm2 处理进行花
生田间小区试验，研究不同材料处理对 Cd 污染土壤的养分含量、有效 Cd 含量，以及花生米、花生壳和花生茎叶
Cd 含量的影响。【结果】与对照相比，生物炭 + 碱渣钙镁肥处理土壤 pH 值提高 0.91 个单位，土壤有效 Cd 含量
降低 11.63%，土壤 pH 与土壤有效 Cd 含量之间呈现显著负相关；土壤有机质、交换性 Mg 和有效 Si 含量分别提
高 21.71%、72.05% 和 39.34%（P＜ 0.05）；花生荚果产量和花生米粗蛋白含量分别增加 22.57% 和 9.39%（P＜ 0.05）；
生物炭 + 碱渣钙镁肥处理对减少花生茎叶对重金属 Cd 的吸收累积有明显作用。【结论】生物炭 + 碱渣钙镁肥能
有效钝化土壤重金属 Cd，提高花生的产量和品质，可以作为重金属 Cd 污染土壤的复混改良材料。 |
| 英文摘要: |
| 【Objective】The study was conducted to verify the improvement effects of biochar(B)+calcium-magnesium
fertilizer(C) made of soda waste on soil contaminated by heavy-metal Cd.【Method】On the bases of conventional
fertilization(NPK), the treatments of NPK(CK), NPK+20 t/hm2 B, NPK+3 t/hm2 C and NPK+20 t/hm2 B+3 t/hm2 C were made
in the field plot experiment of peanut (Arachis hypogaea L.) and the effects of different treatments on nutrient content and effective Cd content of Cd contaminated soil, and Cd contents of peanut kernel, peanut shell and peanut stem leaf were studied.
【Result】The results show that compared to CK, BC significantly increases the soil pH by 0.91, O.M. by 21.71%, available
Mg by 72.05%, available Si by 39.34%, and decreases available Cd content of soil by 11.63% (P ＜ 0.05). The soil pH had
significantly negative correlation with available Cd content of soil (P ＜ 0.05). The BC can increase the yield of peanut pods by
22.57% and protein content of peanut kernel by 9.39% (P ＜ 0.05). The BC is beneficial to decrease the Cd content of peanut
stem and leaf. 【Conclusion】Biochar+calcium-magnesium fertilizer is a blended material that can be used to improve the soils
contaminated by heavy-metal Cd, and increase the yield and quality of peanut. |
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