AUTHOR=Chen Yao , Tian Xin , Wang Jia-hao , Zhang Yu , Wang Jie , Li Zhang-tao , Zhao Ke-li , Wu Ji-zi TITLE=Silicon-iron modified biochar remediates cadmium and arsenic co-contaminated paddy soil by regulating cadmium and arsenic speciation JOURNAL=Frontiers in Microbiology VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2025.1579213 DOI=10.3389/fmicb.2025.1579213 ISSN=1664-302X