Nitrogen dynamics in soils amended with slurry treated by acid or DMPP addition

Owusu-Twum, Maxwell Y.; Loick, Nadine; Cardenas, L. M.; Coutinho, João; Trindade, Henrique; Fangueiro, David

doi:10.1007/s00374-017-1178-0

Cited by 13 publications

(8 citation statements)

References 28 publications

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“…Addition of sulfuric acid led to overall reductions in N 2 O emissions by 17 ± 30% (Table 2) during the storage and application of acidified slurry. The reduction in N 2 O emissions was due to the decreased activity of bacterial nitrifiers with the lowering of slurry pH (Owusu‐Twum et al, 2017). One of the studies, however, reported no change in N 2 O emissions during storage of acidified slurry (Petersen et al, 2014).…”

Section: Resultsmentioning

confidence: 99%

“…The results show that lactic acid reduced N 2 O emissions by 93 ± 3%, whereas the addition of sulfuric acid had lower N 2 O reductions of 17 ± 30%. Nitric acid, on the other hand, led to a significant increase in N 2 O emissions (>100%) (Berg et al, 2006b; Petersen et al, 2012; Owusu‐Twum et al, 2017). Although nitric acid is currently not used as an abatement option, it does reduce NH 3 and CH 4 emissions.…”

Section: Resultsmentioning

confidence: 99%

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Greenhouse Gas and Ammonia Emissions from Different Stages of Liquid Manure Management Chains: Abatement Options and Emission Interactions

2018

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Farm livestock manure is an important source of ammonia and greenhouse gases. Concerns over the environmental impact of emissions from manure management have resulted in research efforts focusing on emission abatement. However, questions regarding the successful abatement of manure-related emissions remain. This study uses a meta-analytical approach comprising 89 peer-reviewed studies to quantify emission reduction potentials of abatement options for liquid manure management chains from cattle and pigs. Analyses of emission reductions highlight the importance of accounting for interactions between emissions. Only three out of the eight abatement options considered (frequent removal of manure, anaerobic digesters, and manure acidification) reduced ammonia (3-60%), nitrous oxide (21-55%), and methane (29-74%) emissions simultaneously, whereas in all other cases, tradeoffs were identified. The results demonstrate that a shift from single-stage emission abatement options towards a wholechain perspective is vital in reducing overall emissions along the manure management chain. The study also identifies some key elements like proper clustering, reporting of influencing factors, and explicitly describing assumptions associated with abatement options that can reduce variability in emission reduction estimates. Prioritization of abatement options according to their functioning can help to determine low-risk emission reduction options, specifically options that alter manure characteristics (e.g., reduced protein diets, anaerobic digestion, or slurry acidification). These insights supported by comprehensive emission measurement studies can help improve the effectiveness of emission abatement and harmonize strategies aimed at reducing air pollution and climate change simultaneously. Greenhouse Gas and Ammonia Emissions from Different Stages of Liquid Manure Management Chains: Abatement Options and Emission InteractionsErangu Purath Mohankumar Sajeev,* Wilfried Winiwarter, and Barbara Amon L ivestock production and rearing is a major source of ammonia (NH 3 ) and greenhouse gas (GHG) emissions. In 2014, the livestock sector contributed a share of 53% methane (CH 4 ), 21% nitrous oxide (N 2 O), and 75% NH 3 to total agricultural emissions in the European Union (EU-28) (UNECE, 2016;UNFCCC, 2016). The negative impacts of these emissions on the environment have been widely reported. Accumulation of GHGs in the atmosphere causes climate change, which leads to undesirable consequences like sea level rise, increase in extreme weather events, and losses in food production (Stocker et al., 2013). Ammonia, on the other hand, poses a threat to terrestrial and aquatic systems and contributes to the formation of particulate matter in the atmosphere, which is harmful for human health . Ammonia volatilization and subsequent atmospheric deposition is also a source of indirect N 2 O emissions (De Klein et al., 2006). Given the projected increase in demand for livestock products (Steinfeld et al., 2007), there is a pressing need to ab...

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Greenhouse Gas and Ammonia Emissions from Different Stages of Liquid Manure Management Chains: Abatement Options and Emission Interactions

2018

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“…In a circular economy model, this alternative practice reduces the costs related to waste treatment processes and minimize the use of synthetic fertilizer, which are advantageous from an ecological and economic point of view. This practice could however, lead to other environmental issues such as emissions of GHGs, ammonia, and pollution of water bodies (Rodhe et al, 2006;Fangueiro et al, 2015a;Huertas et al, 2016;Regueiro et al, 2016;Owusu-Twum et al, 2017;Franco et al, 2019). N 2 O, with high global warming potential (GWP 265 for 100-year time horizon), plays a central role in the depletion of stratospheric ozone (Ravishankara et al, 2009;Myhre et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Using the Nitrification Inhibitor Nitrapyrin in Dairy Farm Effluents Does Not Improve Yield-Scaled Nitrous Oxide and Ammonia Emissions but Reduces Methane Flux

Castillo

Méndez

Elizondo-Salazar

et al. 2021

Front. Sustain. Food Syst.

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The application of dairy farm effluents (DFE) without previous treatment in paddocks was intensified due to the approval of this practice in Costa Rican legislation since 2012. Applying DFE instead of synthetic N fertilizer in grasslands is an opportunity to reach a circular economy; however, this practice increases the risk of emissions of nitrous oxide (N2O), methane (CH4), and ammonia (NH3), which contribute to global warming. A field experiment was carried out using a permanent grassland (90% Star grass and 10% Kikuyo grass) to simultaneously assess the effect of nitrapyrin on yield-scaled emissions of NH3, CH4, and N2O. The experiment lasted for 5 months in 2017, based on a randomized complete block design, including three treatments of control (CK) without N application, surface application of DFE with nitrapyrin (SNI), and without nitrapyrin (S). Total N applied was 149 ± 12 kg N ha−1 for both S and SNI treatments split into five applications. CH4 emissions from S, SNI, and CK showed a high temporal variation. Daily fluxes of CH4 from SNI were significantly lower than those of S in August (P < 0.05). Cumulative emissions of CH4, the majority produced in the soil, ranged from 4 to 168 g ha−1 for S, and from −13 to 88 g ha−1 for SNI. The ratio between the N2O cumulative emissions and the N applied as DFE were 1.6 ± 0.5 and 1.7 ± 0.2% for S and SNI, respectively. NH3 volatilization potential was very low (i.e., 0.6 ± 0.2% of the N applied). Under the prevailing experimental conditions, no significant difference between yield-scaled NH3 and N2O emissions were found between S and SNI, suggesting that nitrapyrin may not be a viable mitigation option for gaseous N losses from DFE application in Costa Rican grasslands in rainy season.

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“…The acidification of slurries has also been shown to delay nitrification in some soils (Fangueiro et al, 2013) but not in others, e.g., soils with a high buffering capacity where the soil pH was not altered after the application of the acidified digestate (Fangueiro et al, 2016). Owusu-Twum et al (2017) recently demonstrated in a short-term experiment under controlled conditions that acidification of slurries could significantly reduce N 2 O emissions, but to a lesser extent than when DMPP was used. We found some evidence of a delay in the nitrification process for the acidified digestate, where peak soil NO − 3 -N content was observed a few weeks later than for unacidified digestate at HF (Figure 1E), and soil NH + 4 -N contents were higher for AD than for D on the majority of measurement occasions (Figures 1C,D), although this could also be attributed to the initial higher NH + 4 -N contents of the acidified digestate (Table 3).…”

Section: Nitrogen Losses: Acidification and Nitrification Inhibitorsmentioning

confidence: 99%

“…Reported N losses as N 2 O emissions following the application of food-based digestate vary from 0.45% (Nicholson et al, 2017) to 4-10% (Tiwary et al, 2015) of the total N applied. A method to reduce N 2 O emissions from manure applications, which may be equally applicable to digestates is the use of nitrification inhibitors (NI), such as 3,4-Dimethylpyrazole phosphate (DMPP) (Owusu-Twum et al, 2017), that delay the process in which NH + 4 transforms into NO − 3 . Nitrate is a readily mobile form of N, which can be lost by leaching, therefore, keeping N in the form of NH + 4 (lessmobile) could prevent NO − 3 leaching while minimizing N 2 O losses (Subbarao et al, 2006;MarkFoged et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Advanced Processing of Food Waste Based Digestate for Mitigating Nitrogen Losses in a Winter Wheat Crop

Sánchez‐Rodríguez

Carswell

Shaw

et al. 2018

Front. Sustain. Food Syst.

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The anaerobic digestion of food waste converts waste products into "green" energy. Additionally, the secondary product from this process is a nutrient-rich digestate, which could provide a viable alternative to synthetically-produced fertilizers. However, like fertilizers, digestate applied to agricultural land can be susceptible to both ammonia (NH 3 ) and nitrous oxide (N 2 O) losses, having negative environmental impacts, and reducing the amount of N available for crop uptake. Our main aim was to assess potential methods for mitigating N losses from digestate applied to a winter wheat crop and subsequent impact on yield. Plot experiments were conducted at two UK sites, England (North Wyke-NW) and Wales (Henfaes-HF), to assess NH 3 and N 2 O losses, yield and N offtake following a single band-spread digestate application. Treatments examined were digestate (D), acidified-digestate (AD), digestate with the nitrification inhibitor DMPP (D+NI), AD with DMPP (AD+NI), and a zero-N control (C). Ammonium nitrate (NH 4 NO 3 ) fertilizer N response plots (from 75 to 300 kg N ha −1 ) were included to compare yields with the organic N source. Across both sites, cumulative NH 3 -N losses were 27.6% from D and D+NI plots and 1.5% for AD and AD+NI of the total N applied, a significant reduction of 95% with acidification. Cumulative N 2 O losses varied between 0.13 and 0.35% of the total N applied and were reduced by 50% with the use of DMPP although the differences were not significant. Grain yields for the digestate treatments were 7.52-9.21 and 7.23-9.23 t DM ha −1 at HF and NW, respectively. Yields were greater from the plots receiving acidified-digestate relative to the non-acidified treatments but the differences were not significant. The yields obtained for the digestate treatments ranged between 84.2% (D+NI) and 103.6% (D) of the yields produced by the same N rate from an inorganic source at HF. Advanced processing of digestate reduced N losses providing an environmentally sound option for N management.

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Nitrogen dynamics in soils amended with slurry treated by acid or DMPP addition

Cited by 13 publications

References 28 publications

Greenhouse Gas and Ammonia Emissions from Different Stages of Liquid Manure Management Chains: Abatement Options and Emission Interactions

Greenhouse Gas and Ammonia Emissions from Different Stages of Liquid Manure Management Chains: Abatement Options and Emission Interactions

Using the Nitrification Inhibitor Nitrapyrin in Dairy Farm Effluents Does Not Improve Yield-Scaled Nitrous Oxide and Ammonia Emissions but Reduces Methane Flux

Advanced Processing of Food Waste Based Digestate for Mitigating Nitrogen Losses in a Winter Wheat Crop

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