Efficiency of two nitrification inhibitors (dicyandiamide and 3, 4-dimethypyrazole phosphate) on soil nitrogen transformations and plant productivity: a meta-analysis

Scientific Reports, Journal Year: 2016, Volume and Issue: 6(1)

Published: Feb. 23, 2016

Abstract Dicyandiamide (DCD) and 3, 4-dimethypyrazole phosphate (DMPP) are often claimed to be efficient in regulating soil N transformations influencing plant productivity, but the difference of their performances across field sites is less clear. Here we applied a meta-analysis approach compare effectiveness DCD DMPP trials. Our results showed that were equally effective altering inorganic content, dissolve (DIN) leaching nitrous oxide (N 2 O) emissions. was more than on increasing productivity. An increase crop yield by generally only observed alkaline soil. The cost benefit analysis (CBA) applying fertilizer with produced additional revenues $109.49 ha −1 yr for maize farms, equivalent 6.02% grain revenues. In comparisons, application monetary $15.67 . findings had an advantage bringing net over DMPP. But this may weakened higher toxicity especially after continuous application. Alternatively, option related achieved through reducing purchasing products.

Language: Английский

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Dissimilatory nitrate reduction to ammonium (DNRA), not denitrification dominates nitrate reduction in subtropical pasture soils upon rewetting

Soil Biology and Biochemistry, Journal Year: 2018, Volume and Issue: 125, P. 340 - 349

Published: Aug. 11, 2018

Language: Английский

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Effects of the Nitrification Inhibitor 3,4-Dimethylpyrazole Phosphate on Nitrification and Nitrifiers in Two Contrasting Agricultural Soils

Applied and Environmental Microbiology, Journal Year: 2016, Volume and Issue: 82(17), P. 5236 - 5248

Published: June 18, 2016

The nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP) is a powerful tool that can be used to promote nitrogen (N) use efficiency and reduce N losses from agricultural systems by slowing nitrification. Mounting evidence has confirmed the functional importance of ammonia-oxidizing archaea (AOA) bacteria (AOB) in N2O production; however, their responses DMPP amendment microbial mechanisms underlying variable efficiencies across different soils remain largely unknown. Here we compared impacts on dynamics ammonia oxidizers between an acidic pasture soil alkaline vegetable using (15)N tracing (13)CO2-DNA-stable-isotope probing (SIP) technique. results showed significantly inhibited production only, transient inhibition was coupled with significant decrease AOB abundance. No effects community structure or abundances total denitrifiers were observed either soil. experiment revealed autotrophic predominant form both soils. (13)CO2-DNA-SIP indicated involvement active soils, but assimilation (13)CO2 into only Our findings provide could effectively inhibit through impeding abundance metabolic activity not soil, possibly due low adsorption organic matter.The combination model technique provides important nitrous oxide emission influencing AOB. In contrast, no effect nitrifiers potentially owing possible matter. have direct implications for improved practices utilizing appropriate situations, they emphasize communities efficacy DMPP.

Language: Английский

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Denitrification losses from an intensively managed sub-tropical pasture – Impact of soil moisture on the partitioning of N 2 and N 2 O emissions

Soil Biology and Biochemistry, Journal Year: 2015, Volume and Issue: 92, P. 58 - 66

Published: Oct. 21, 2015

Language: Английский

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The efficacy of 3,4-dimethylpyrazole phosphate on N2O emissions is linked to niche differentiation of ammonia oxidizing archaea and bacteria across four arable soils

Soil Biology and Biochemistry, Journal Year: 2018, Volume and Issue: 130, P. 82 - 93

Published: Dec. 8, 2018

Language: Английский

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Nitrifier‐induced denitrification is an important source of soil nitrous oxide and can be inhibited by a nitrification inhibitor 3,4‐dimethylpyrazole phosphate

Environmental Microbiology, Journal Year: 2017, Volume and Issue: 19(12), P. 4851 - 4865

Published: July 28, 2017

Soil ecosystem represents the largest contributor to global nitrous oxide (N2 O) production, which is regulated by a wide variety of microbial communities in multiple biological pathways. A mechanistic understanding these N2 O production pathways complex soil environment essential for improving model performance and developing innovative mitigation strategies. Here, combined approaches 15 N-18 labelling technique, transcriptome analysis, Illumina MiSeq sequencing were used identify relative contributions four including nitrification, nitrifier-induced denitrification (nitrifier nitrification-coupled denitrification) heterotrophic six soils (alkaline vs. acid soils). In alkaline soils, nitrification dominant application inhibitor 3,4-dimethylpyrazole phosphate (DMPP) significantly reduced from pathways; this probably due observed reduction expression amoA gene ammonia-oxidizing bacteria (AOB) DMPP-amended treatments. however, was main source not impacted DMPP. Our results provide robust evidence that DMPP can inhibit denitrification, potential significant agricultural soils.

Language: Английский

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Field application of pure polyethylene microplastic has no significant short-term effect on soil biological quality and function

Soil Biology and Biochemistry, Journal Year: 2021, Volume and Issue: 165, P. 108496 - 108496

Published: Nov. 22, 2021

Language: Английский

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Annual nitrogen dynamics and urea fertilizer recoveries from a dairy pasture using 15N; effect of nitrification inhibitor DMPP and reduced application rates

Agriculture Ecosystems & Environment, Journal Year: 2015, Volume and Issue: 216, P. 216 - 225

Published: Oct. 19, 2015

Language: Английский

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Nitrification inhibitors can increase post-harvest nitrous oxide emissions in an intensive vegetable production system

Scientific Reports, Journal Year: 2017, Volume and Issue: 7(1)

Published: March 7, 2017

Abstract To investigate the effect of nitrification inhibitors (NIs) 3,4-dimethylpyrazole phosphate (DMPP) and 3-methylpyrazole 1,2,4-triazole (3MP + TZ), on N 2 O emissions yield from a typical vegetable rotation in sub-tropical Australia we monitored soil fluxes continuously over an entire year using automated greenhouse gas measurement system. The temporal variation showed only low cropping phases, but significantly higher were observed post-harvest accounting for 50–70% annual emissions. NIs reduced by 20–60% phases; however, this mitigation was offset elevated treatments fallow period. Annual conventional fertiliser, DMPP treatment, 3MP TZ treatment 1.3, 1.1 1.6 (sem = 0.2) kg-N ha −1 , respectively. This study highlights that use systems can lead to storing profile is available microbes during decomposition residues. Hence has be treated carefully fertiliser rates need adjusted avoid oversupply phase.

Language: Английский

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The nitrification inhibitor DMPP (3,4-dimethylpyrazole phosphate) reduces N2 emissions from intensively managed pastures in subtropical Australia

Soil Biology and Biochemistry, Journal Year: 2017, Volume and Issue: 108, P. 55 - 64

Published: Feb. 4, 2017

Language: Английский

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