Biochar-Urea Peroxide Composite Particles Alleviate Phenolic Acid Stress in <i>Pogostemon cablin</i> Through Soil Microenvironment Modification.

ABSTRACT: The continuous-cropping obstacles of Pogostemon cablin (patchouli) is severely constrained by autotoxic phenolic acids accumulated in the rhizosphere soil. Biochar adsorption and chemical oxidation are common remediation strategies; they often fail to simultaneously and efficiently remove phenolic allelochemicals while improving the soil micro-ecological environment. To address this issue, this study developed a novel biochar-urea peroxide composite particle (BC-UP). Batch degradation experiments and electron paramagnetic resonance (EPR) analysis confirmed the synergistic adsorption-oxidation function of BC-UP. A pot experiment demonstrated that application of BC-UP (5.0 g/kg) significantly alleviated phenolic acid stress. Specifically, BC-UP application significantly enhanced shoot

SUBMITTER: Tu Y 

PROVIDER: S-EPMC12735811 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature