Joint mitigation of NH3 and N2O emissions by using two synthetic inhibitors in an irrigated cropping soil

Recio, Jaime; Montoya, Mónica Brenes; Ginés, Celia; Sanz-Cobeña, Alberto; Vallejo, Antonio; Álvarez, Jose M.

doi:10.1016/j.geoderma.2020.114423

Cited by 35 publications

(13 citation statements)

References 57 publications

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“…Urease can hydrolyse urea to NH 4 + , but the amount of NH 4 + produced may provide sufficient N substrates for the nitrification process, thus, resulting in N 2 O emissions (Kuypers et al 2018). Numerous studies have revealed that the application of urease inhibitor can effectively reduce N 2 O emissions from urea-fertilised soils (Krol et al 2020, Recio et al 2020, which is consistent with our results ( 2B and Figure 3) may be induced by the water or acid soluble fraction of the biochar, especially the N (Wang et al 2020). Indeed, compared to the soil N contents, fruit shells-derived biochar was rich in TN and available N (Table 3).…”

Section: Resultsmentioning

confidence: 99%

“…Nevertheless, compared to other inorganic N fertilisers such as ammonium nitrate and ammonium chloride, urea application generally results in higher soil N 2 O emissions (Nelissen et al 2014, Deng et al 2019a. Therefore, urea-fertilised soils have great potential in mitigating N 2 O emissions.Both urease inhibitor and biochar applications are potential strategies for mitigating soil N 2 O emissions (Recio et al 2020, Aamer et al 2021. N-(n-butyl) thiophosphoric triamide (NBPT) is one major urease inhibitor that has been widely used in agriculture…”

mentioning

confidence: 99%

“…Both urease inhibitor and biochar applications are potential strategies for mitigating soil N 2 O emissions (Recio et al 2020, Aamer et al 2021. N-(n-butyl) thiophosphoric triamide (NBPT) is one major urease inhibitor that has been widely used in agriculture…”

mentioning

confidence: 99%

“…for delaying urea hydrolysis and improving the use efficiency of urea. For example, the efficiency of NBPT in reducing soil N 2 O emissions was up to 79% (Recio et al 2020). On the other hand, biochar produces from biomass pyrolysis at high-temperature ranges (250-700 °C) and oxygen-limited conditions.…”

mentioning

confidence: 99%

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Urease inhibitor and biochar independently affected N<sub>2</sub>O emissions from Camellia oleifera soils

Deng¹,

Shen²,

Guo³

et al. 2022

PLANT SOIL ENVIRON

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Nitrous oxide (N2O) is a long-lived greenhouse gas that impacts climate change. Agricultural soils with intensive nitrogen (N) application are the main source of N2O emissions. Reducing N2O emissions from N-fertilised soils is, therefore, important for climate change mitigation. The application of urease inhibitor and/or biochar provides the potential for mitigating N2O emissions. However, the interactive effect of urease inhibitor and biochar on N2O emissions remains limited. In this study, an incubation experiment was performed to investigate the gradients of urease inhibitor N-(n-butyl) thiophosphoric triamide (NBPT) (0, 0.08, 0.16, and 0.24%) and biochar additions (0, 2.5, and 5%) on N2O emissions from urea-fertilised Camellia oleifera soils. Results showed that urease inhibitor decreased, but biochar increased cumulative N2O emissions. No significant interactive effects were observed between urease inhibitor and biochar on the cumulative N2O emissions, but cumulative N2O emissions were decreased by NBPT under a 2.5% biochar addition rate. Soil N2O emission rates were negatively correlated with net ammonification and N mineralisation rates and positively correlated with net nitrification rates. This study indicates that NBPT, with the characteristic of delaying urea hydrolysis, can be better than biochar in mitigating N2O emissions from urea-fertilised soils of C. oleifera plantations.

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Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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Urease inhibitor and biochar independently affected N<sub>2</sub>O emissions from Camellia oleifera soils

Deng¹,

Shen²,

Guo³

et al. 2022

PLANT SOIL ENVIRON

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“…Although DMPSA is not able to inhibit nitrification in pure cultures of N. europaea, its inhibition capacity in soil has been largely proven [19,20,22,[34][35][36][37][38]. Therefore, there must be a process that takes place in the soil, but does not occur in nitrifiers' pure culture that allows DMPSA inhibiting nitrification.…”

Section: Dmpsa Is Broken Into Dmp In Soilsmentioning

confidence: 99%

Evidences towards deciphering the mode of action of dimethylpyrazole-based nitrification inhibitors in soil and pure cultures of Nitrosomonas europaea

Bozal-Leorri

Corrochano-Monsalve

Vega‐Mas

et al. 2022

Chem. Biol. Technol. Agric.

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Background Agriculture relies on the intensive use of synthetic nitrogen (N) fertilizers to maximize crop yields, which has led to the transformation of agricultural soils into high-nitrifying environments. Nevertheless, nitrification inhibitors (NIs) have been developed to suppress soil-nitrifier activity and decrease N losses. The NIs 3,4-dimethylpyrazole phosphate (DMPP) and 2-(3,4-dimethyl-1H-pyrazol-1-yl) succinic acid isomeric mixture (DMPSA) are able to reduce N2O emissions and maintain soil NH4+ for a longer time. Although both NIs have been proven to be effective to inhibit soil nitrification, their exact mode of action has not been confirmed. We aimed to provide novel insights to further understand the mode of action of DMP-based NIs. We evaluated the performance of DMPP and DMPSA in soil and pure cultures of nitrifying bacteria Nitrosomonas europaea. Results DMPSA did not inhibit nitrification in pure cultures of N. europaea. In the soil, we evidenced that DMPSA needs to be broken into DMP to achieve the inhibition of nitrification, which is mediated by a soil biological process that remains to be identified. Moreover, both DMPP and DMPSA are thought to inhibit nitrification due to their ability to chelate the Cu2+ cations that the ammonia monooxygenase enzyme (AMO) needs to carry on the first step of NH4+ oxidation. However, the efficiency of DMPP was not altered regardless the Cu2+ concentration in the medium. In addition, we also showed that DMPP targets AMO but not hydroxylamine oxidoreductase enzyme (HAO). Conclusions The inability of DMPSA to inhibit nitrification in pure cultures together with the high efficiency of DMPP to inhibit nitrification even in presence of toxic Cu2+ concentration in the medium, suggest that the mode of action of DMP-based NIs does not rely on their capacity as metal chelators. Graphical Abstract

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Increasing N use efficiency while decreasing gaseous N losses in a non-tilled wheat (Triticum aestivum L.) crop using a double inhibitor

Guardia

García-Gutiérrez

Rodríguez-Pérez

et al. 2021

Agriculture, Ecosystems & Environment

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Joint mitigation of NH3 and N2O emissions by using two synthetic inhibitors in an irrigated cropping soil

Cited by 35 publications

References 57 publications

Urease inhibitor and biochar independently affected N<sub>2</sub>O emissions from Camellia oleifera soils

Urease inhibitor and biochar independently affected N<sub>2</sub>O emissions from Camellia oleifera soils

Evidences towards deciphering the mode of action of dimethylpyrazole-based nitrification inhibitors in soil and pure cultures of Nitrosomonas europaea

Increasing N use efficiency while decreasing gaseous N losses in a non-tilled wheat (Triticum aestivum L.) crop using a double inhibitor

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