Cao, Xueying and Hu, Xinyue and Efrizal, Efrizal and Hayati, Isiah and Yang, Jia and Tan, Changyin and Zhang, Manyun (2024) Tradeoffs among yield, cadmium bioavailability, nitrous oxide emission and bacterial community stability: Effects of iron-modified woody peat and nitrification inhibitors on soil-vegetable systems. Journal of Environmental Management, 372. p. 123379. ISSN 0301-4797, DOI https://doi.org/10.1016/j.jenvman.2024.123379.
Full text not available from this repository.Abstract
Cadmium (Cd) pollution leads to soil degradation, decreases crop yield and affects human health through the food chain. Iron-modified woody peat (IMP) is an organic passivation material that significantly affects the migration of heavy metals in soil. Nitrification inhibitors are widely used to reduce greenhouse gas emissions. This study investigated the effects of the IMP and nitrification inhibitors dicyandiamide (DCD) and 3, 4-dimethylpyrazole phosphate on Cd content and form, crop yield, nitrous oxide (N2O) emission and bacterial communities in soil-lettuce systems. The simultaneous additions of IMP and DCD substantially reduced the soil available Cd content by 22.6 % and significantly promoted the lettuce yield by 42.9 %. Lettuce yield was significantly and negatively correlated with soil available Cd (correlation coefficient = -0.52). The simultaneous applications of IMP and nitrification inhibitors stimulated N2O emission risk by enhancing the soil NH4+-N contents and the relative abundances of Firmicutes, which could also decrease soil bacterial community stabilities. Therefore, tradeoffs among yield, Cd bioavailability, N2O emission and bacterial community stability should be comprehensively considered when evaluating the combined performances of IMP and nitrification inhibitors.
| Item Type: | Article |
|---|---|
| Funders: | National Natural Science Foundation of China (NSFC) (42107018), Young Scientists Fund of the Natural Science Foundation of Hunan Province (2021JJ40630), National Natural Science Foundation of China (NSFC) (42177026), Water Resources Science and Technology Program of Hunan Province (XSKJ2023059-43), Science and Technology Commissioner Serving Rural Revitalization Project of Hunan Province (2024RC8269), Hunan Province Graduate Research Innovation Project (CX20230688), Science Foundation for Young Scholars of Hunan Agricultural University (540742000199) |
| Uncontrolled Keywords: | Iron-modified woody peat; Available Cd; Yield; N2O; Bacterial community stability |
| Subjects: | G Geography. Anthropology. Recreation > GE Environmental Sciences S Agriculture > S Agriculture (General) |
| Divisions: | Faculty of Science > Institute of Biological Sciences |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 12 Mar 2025 08:11 |
| Last Modified: | 12 Mar 2025 08:11 |
| URI: | http://eprints.um.edu.my/id/eprint/47304 |
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