Field aging declines the regulatory effects of biochar on cadmium uptake by pepper in the soil

• DOI: 10.1016/j.jenvman.2022.115832
• Publication Date: 2022-08-13T17:47:27Z
• Authors: Dan Xing; Hongguang Cheng; Zengping Ning; Yizhang Liu; Shan Lin; Yongfu Li; Xi Wang; Paul Hill; Dave Chadwick; Davey L. Jones
• Keywords: Amendment; Charcoal; Soil conditioner

Biochar application is not only being widely promoted as an ideal strategy to mitigate global climate warming, but it also has the advantage of reducing heavy metal bioavailability and migration in soil. However, studies on effects field aging biochar reduce metals from soil are still limited. The present study aimed explore mechanisms aged added planted with pepper plants cadmium (Cd) uptake. To achieve this, un-amended (control), amended fresh biochar, (biochar recovered a long-term trial after 9 years) were used investigate adsorption efficiency. results revealed that amount Cd plant control soil, accounted for 40 ± 6.10, 17.18 1.19, 18.68 0.79, respectively. There was significant difference (P < 0.05) uptaken by among all treatments. significantly decreased compared biochar. This indicates declines potential lower retention demonstrates burial lessens ability interact suggests amendment can depending freshness