| Cite this article: | 王月清,赵京,高青,等.添加生物炭对猪场废水灌溉土壤养分状况及铅有效性的影响[J].灌溉排水学报,0,():-. |
| wangyueqing,zhaojing,gaoqing,et al.添加生物炭对猪场废水灌溉土壤养分状况及铅有效性的影响[J].灌溉排水学报,0,():-. |
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| Effect of biochar amendment under the irrigation with piggery wastewater on soil nutrient situation and availability of Pb |
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wangyueqing1, zhaojing2, gaoqing1, qiaodongmei1, qixuebin1, 杜臻杰1
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1.Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences;2.Henan Institute of Technology
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| Abstract: |
| 【Objective】Piggery wastewater, which is rich in macro and micronutrients but also contains some heavy metals. A field experiment was carried out to study effect of biochar amendment under the irrigation with piggery wastewater on soil nutrient situation and lead migration in order to provide a scientific basis for high-efficient irrigation in the piggery wastewater. 【Methods】The experiment was performed in wheat with PVC rhizobox method, located in the suburb of Xinxiang City. This experiment included 5 treatments: CK (no fertilizer), 4 level of biochar (0、0.5%、2% and 2.5% w/w). The content of organic matter、available nutrients (N、P 、K)and lead in rhizosphere and bulk soils were analyzed, and the differences among the treatments and immigration of lead were also discussed. 【Results】Compared with the control, 2% and 5% biochar amendments significantly increased the content of organic matter, available nitrogen、phosphorous and potassium, especially in bulk soils. In addition, available lead content in biochar amendments (2% and 5%) were lower than in the control, with the lowest decrease of 20.7%~33.3%, while the content of lead in rhizosphere soils was higher than those in bulk soils. 【Conclusions】In northern alkaline soils, biochar amendment under the irrigation with piggery wastewater has significantly positive effects on soil physicochemical property, decreased the lead 基金项目：国家自然科学基金面上项目(51779260,51879268); 河南省科技攻关项目(192102110051)；“十三五”重大研发计划课题(2016YFD0800703);中央级基本科研业务费(FIRI2017-11)作者简介：王月清(1994-),男,河南信阳人。主要从事土壤污染控制与修复研究。E-mail: 1694629151@qq.com*通讯作者：杜臻杰(1982-),男,河南新乡人,副研究员,博士。主要从事农业水资源与水环境方面的研究。E-mail:imdzj11@163.com bioavailability in soils, avoiding the accumulation of lead in plants to some extent. |
| Key words: the availability of Pb; biochar; piggery wastewater; soil nutrient situation |
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