Oxygen Availability Governs the Mitigating Effect of 3,4-Dimethylpyrazole Phosphate on Nitrous Oxide Emissions from Paddy Soils under Various Water Managements DOI
Jun Wang,

Wenjun Jin,

Ningning Xie

et al.

Journal of Agricultural and Food Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 25, 2025

Alternate wetting and drying (AWD) frequently triggers nitrous oxide (N2O) emissions from paddy fields, while the inhibitory effect of 3,4-dimethylpyrazole phosphate (DMPP) on N2O under various water managements remains uncertain. Here, we evaluated effects DMPP associated biological indicators three managements: continuous flooding (CF), mild AWD (Mi-AWD), moderate (Mo-AWD). The Mi-AWD Mo-AWD practices increased by 2- 0.9-fold compared to CF treatment, respectively, due enhanced oxygen availability, facilitating coupled nitrification-denitrification. application notably reduced in treatments, attributed reductions nitrifier abundances, nitrification rates, nitrate accumulation. Nevertheless, failed suppress and, thereby, treatment. Overall, effectively mitigates oxygen-rich rather than anaerobic conditions, highlighting that trade-offs between water-saving irrigation mitigation can be overcome via inhibitors application.

Language: Английский

Oxygen Availability Governs the Mitigating Effect of 3,4-Dimethylpyrazole Phosphate on Nitrous Oxide Emissions from Paddy Soils under Various Water Managements DOI
Jun Wang,

Wenjun Jin,

Ningning Xie

et al.

Journal of Agricultural and Food Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 25, 2025

Alternate wetting and drying (AWD) frequently triggers nitrous oxide (N2O) emissions from paddy fields, while the inhibitory effect of 3,4-dimethylpyrazole phosphate (DMPP) on N2O under various water managements remains uncertain. Here, we evaluated effects DMPP associated biological indicators three managements: continuous flooding (CF), mild AWD (Mi-AWD), moderate (Mo-AWD). The Mi-AWD Mo-AWD practices increased by 2- 0.9-fold compared to CF treatment, respectively, due enhanced oxygen availability, facilitating coupled nitrification-denitrification. application notably reduced in treatments, attributed reductions nitrifier abundances, nitrification rates, nitrate accumulation. Nevertheless, failed suppress and, thereby, treatment. Overall, effectively mitigates oxygen-rich rather than anaerobic conditions, highlighting that trade-offs between water-saving irrigation mitigation can be overcome via inhibitors application.

Language: Английский

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