Soil contamination by arsenic (As) presents a high risk to public health, necessitating urgent remediation. This study sought to develop an efficient strategy for the phytoremediation of As-contaminated soil. The effects of Stevia rebaudiana Bertoni residue (SR) on the available As (A-As) concentration of soil and As extraction from the soil by Pteris vittata L. were studied by soil simulation, pot, and field experiments. The A-As concentration in the soil simulation experiment increased significantly by 84.20% after 20 days. The biomass, As concentration, and total extracted As of SR-treated P. vittata L. in the pot experiment increased significantly by 50.66%, 120.2%, and 171.2%, respectively, compared to the untreated control. The SR-treated rhizosphere soil in the pot experiment displayed a significant 21.72% decrease in total As concentration. In the one-year field experiment, treatment with SR resulted in a significant 191.1% increase in As extraction by P. vittata L. and a significant 10.26% reduction in rhizosphere soil As concentration compared to the control. This study proposes a potential mechanism for SR-mediated enhancement of P. vittata L. As extraction ability and provides a new, economic, and environmentally friendly method for As-contaminated soil remediation.

砷 (As) 对土壤的污染对公众健康构成高风险，需要紧急补救。本研究旨在开发一种有效的策略来对 As 污染的土壤进行植物修复。的影响甜菊对土壤的可用作为（A-AS）浓度和As从由土壤提取贝尔托尼残留物（SR）蜈蚣草由土壤模拟，罐，和田间试验进行了研究L.。土壤模拟实验中的 A-As 浓度在 20 天后显着增加了 84.20%。SR 处理的P.vittata的生物量、As 浓度和总提取 As与未处理的对照相比，盆栽实验中的 L. 分别显着增加了 50.66%、120.2% 和 171.2%。盆栽实验中经 SR 处理的根际土壤中总砷浓度显着降低了 21.72%。在为期一年的田间试验中，与对照相比，SR 处理导致P. vittata L. 的砷提取量显着增加 191.1% ，根际土壤中的砷浓度显着降低 10.26%。本研究提出了一种 SR 介导的增强P. vittata L. As 提取能力的潜在机制，并为 As 污染的土壤修复提供了一种新的、经济的和环境友好的方法。