Soil bacterial and fungal communities respond differently to the biochar amendment in a cadmium-contaminated paddy field.

ABSTRACT: For slightly and moderately cadmium (Cd)-contaminated paddy soils, in situ stabilization technologies such as biochar amendment provide a sustainable way of safe agricultural production. A two-year study was conducted to investigate soil microbial communities responses to biochar amendment in a slightly Cd-contaminated paddy field. Soil Cd fractions, organic carbon content, microbial communities, and their relationships were analyzed. The results showed that biochar application decreased Cd accumulation in brown rice by 13.56-24.56% and HOAc-soluble Cd content by 35.65-52.5%. It mainly induced the transformation of soluble Cd to oxidizable and residual Cd. Soil organic carbon (TOC), total nitrogen (TN), available potassium (AK) and available phosphorus (AP) contents tended to increase with

SUBMITTER: Zhang M 

PROVIDER: S-EPMC12521584 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature