Antagonistic Effect of Microplastic Polyvinyl Chloride and Nitrification Inhibitor on Soil Nitrous Oxide Emission: An Overlooked Risk of Microplastic to the Agrochemical Effectiveness

Microplastics are widely persistent in agricultural ecosystems and may affect soil nitrous oxide (N2O) emissions. Nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP) is applied to decelerate nitrification and reduce soil N2O emission. Nevertheless, the interactive effects of nitrification...

Full description

Saved in:
Bibliographic Details
Published in:Journal of agricultural and food chemistry 2024-12, Vol.72 (48), p.26654-26663
Main Authors: Ma, Bin, Tahmasbian, Iman, Guo, Tao, Zhou, Minzhe, Tang, Wenhui, Zhang, Manyun
Format: Article
Language:English
Subjects:
Agricultural and Environmental Chemistry
Agrochemicals - chemistry
Agrochemicals - pharmacology
Bacteria - classification
Bacteria - drug effects
Bacteria - genetics
Bacteria - isolation & purification
Bacteria - metabolism
Microplastics
Nitrification - drug effects
Nitrous Oxide - chemistry
Polyvinyl Chloride - chemistry
Pyrazoles - chemistry
Pyrazoles - pharmacology
Soil - chemistry
Soil Microbiology
Soil Pollutants - chemistry
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Microplastics are widely persistent in agricultural ecosystems and may affect soil nitrous oxide (N2O) emissions. Nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP) is applied to decelerate nitrification and reduce soil N2O emission. Nevertheless, the interactive effects of nitrification inhibitors and microplastics on soil N2O emissions have not been investigated. Sole DMPP, polyvinyl chloride (PVC), and polystyrene (PS) substantially reduced agricultural soil N2O emission rates by 25.93%, 69.04%, and 73.89%, respectively. Nevertheless, PVC and DMPP had antagonistic effects on the N2O emission rates. The observed reductions in N2O emissions could be attributed to variations in soil oxygen availability, electron transport system activities, and Firmicutes, nap, and GDH genes. Moreover, the DMPP, PVC, and PS alone or copresences significantly enhanced the soil ecosystem multifunctionality (EMF). The findings shed light on the role of microplastics in soil N2O emission, EMF, and the microbial community, expanding the understanding of microplastics’ effects on agrochemical effectiveness.
ISSN:0021-8561
1520-5118
1520-5118
DOI:10.1021/acs.jafc.4c06528