稻秆生物炭对污染土壤中印度芥菜（ Brassica juncea (L.) Czern.）生长、修复铅污染及微量元素吸收的影响。
Effect of Rice Residue Biochar on Lead Remediation, Growth, and Micronutrient Uptake in Indian Mustard (Brassica juncea (L.) Czern.) Cultivated in Contaminated Soil.
机构信息
Division of Soil Science and Agricultural Chemistry, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
Department of Soil Science, College of Agriculture, Punjab Agricultural University, Ludhiana, 141027, India.
出版信息
Bull Environ Contam Toxicol. 2024 Oct 28;113(5):62. doi: 10.1007/s00128-024-03973-z.
A pot experiment at Punjab Agricultural University, Ludhiana, India, assessed rice residue biochar's effect on remediating lead and cadmium in soil and on Indian mustard growth. Soil spiked with Cd (0, 10, 25 mg kg⁻¹) and Pb (0, 25, 50 mg kg⁻¹) was amended with biochar (0, 0.5, 1, 2% w/w) in a completely randomized design with three replications. Adding 2% biochar reduced DTPA-Pb in soil and Pb in shoots by 61% and 56%, respectively. Biochar increased dry matter yield (DMY) by 18% at 1% but decreased by 19% at 2%. The 1% biochar increased shoot Fe, Mn, Zn, and Cu by 11.39%, 26.74%, 5.89%, and 17.72%, respectively. Rice residue biochar significantly improved the DMY and micronutrient content of Indian mustard by reducing lead contamination in co-contaminated soil.
印度旁遮普农业大学在卢迪亚纳进行的一项盆栽实验评估了水稻残体生物炭对修复土壤中铅和镉以及印度芥菜生长的影响。采用完全随机设计，在土壤中添加 Cd（0、10、25mg kg⁻¹）和 Pb（0、25、50mg kg⁻¹），并用生物炭（0、0.5、1、2%w/w）进行改良，设三个重复。添加 2%生物炭可使土壤中 DTPA-Pb 和植物地上部 Pb 分别减少 61%和 56%。生物炭在 1%时使干物质产量（DMY）增加 18%，而在 2%时则减少 19%。1%生物炭分别使地上部 Fe、Mn、Zn 和 Cu 增加 11.39%、26.74%、5.89%和 17.72%。水稻残体生物炭通过降低复合污染土壤中的铅污染，显著提高了印度芥菜的 DMY 和微量元素含量。
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