Non-growing season nitrous oxide fluxes from an agricultural soil as affected by application of liquid and composted swine manure

Kariyapperuma, Kumudinie A.; FuronAdriana,; Wagner-Riddle, Claudia

doi:10.4141/cjss2011-059

Cited by 31 publications

(17 citation statements)

References 57 publications

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“…In studies with animal manures in Manitoba Asgedom et al, 2014), late fall application before freezing also did not increase N 2 O emissions. Similarly, composted and raw pig slurry applied in fall in southern Ontario did not result in fall and winter N 2 O emissions (Kariyapperuma et al, 2012).…”

Section: Discussionmentioning

confidence: 84%

Lower Nitrous Oxide Emissions from Anhydrous Ammonia Application Prior to Soil Freezing in Late Fall Than Spring Pre‐Plant Application

et al. 2016

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Fall application of anhydrous ammonia in Manitoba is common but its impact on nitrous oxide (N 2 O) emissions is not well known. A 2-yr study compared application before freeze-up in late fall to spring pre-plant application of anhydrous ammonia on nitrous oxide (N 2 O) emissions from a clay soil in the Red River Valley, Manitoba. Spring wheat (Triticum aestivum L.) and corn (Zea mays L.) were grown on two 4-ha fields in 2011 and 2012, respectively. Field-scale flux of N 2 O was measured using a fluxgradient micrometeorological approach. Late fall treatment did not induce N 2 O emissions soon after application or in winter likely because soil was frozen. Application time did alter the temporal pattern of emissions with late fall and spring pre-plant applications significantly increasing median daily N 2 O flux at spring thaw and early crop growing season, respectively. The majority of emissions occurred in early growing season resulting in cumulative emissions for the crop year being numerically 33% less for late fall than spring pre-plant application. Poor yield in the first year with late fall treatment occurred because of weed and volunteer growth with delayed planting. Results show late fall application of anhydrous ammonia before freeze-up increased N 2 O emissions at thaw and decreased emissions for the early growing season compared to spring pre-plant application. However, improved nitrogen availability of late fall application to crops the following year is required when planting is delayed because of excessive moisture in spring. (2012) concluded anhydrous ammonia induces the largest emissions of N 2 O from cropped soils of all fertilizer N products. In Manitoba, however, with a lower application rate than other studies included in metaanalyses, Burton et al. (2008) reported no greater emissions with 80 kg N ha -1 anhydrous ammonia than urea applied at planting to spring wheat (Triticum aestivum L.). These studies highlighted the importance of developing strategies to reduce N 2 O emissions from anhydrous ammonia. Lower Nitrous Oxide Emissions from Anhydrous Ammonia ApplicationAnhydrous ammonia is commonly applied in the fall in the Northern Great Plains of Canada because of lower retail cost (MAFRD, 2007), greater availability over time, and generally drier soil conditions than at spring pre-plant or at spring planting. However, nitrification of early fall applied anhydrous ammonia can occur before winter freeze-up (Malhi and McGill, 1982;Tiessen et al., 2006). To minimize nitrification and thus nitrate accumulation before freeze-up, it is recommended in Manitoba that fall N fertilizer applications are banded and delayed until soil temperatures fall below 5°C (MAFRD, 2007).Applying N in late fall when soil is cool and close to the onset of freezing may not result in increased emissions compared to Abbreviations: TGA, trace gas analyzer; TGAS-Man, Trace Gas Manitoba research site; WFPS, water-filled pore space. Journal of Environmental Quality ATMOSPHERIC POLLUTANTS AND TRACE GASES TECHNICAL R...

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Section: Discussionmentioning

confidence: 84%

Lower Nitrous Oxide Emissions from Anhydrous Ammonia Application Prior to Soil Freezing in Late Fall Than Spring Pre‐Plant Application

et al. 2016

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“…Some studies have reported on the effect of manure types and application methods, and their relationship with winter N 2 O emissions. Nitrous oxide emissions following the application of solid manure onto soils (70 kg N ha À1 ) during the non-growing season (November-April in Canada) were shown to be lower (1.0 kg N ha À1 ) than those from liquid manures (1.4 kg N ha À1 ) (Kariyapperuma et al 2012). In this case, the N 2 O emission peak occurred during the soil thawing period and Kariyapperuma et al (2012) concluded that the difference between solid and liquid manure was attributed to higher N and water contents in the liquid manure, creating more favorable conditions for N 2 O producing microbes.…”

Section: Nutrient Returns To Grazed Pastures In Winter When Animals Amentioning

confidence: 96%

“…Nitrous oxide emissions following the application of solid manure onto soils (70 kg N ha À1 ) during the non-growing season (November-April in Canada) were shown to be lower (1.0 kg N ha À1 ) than those from liquid manures (1.4 kg N ha À1 ) (Kariyapperuma et al 2012). In this case, the N 2 O emission peak occurred during the soil thawing period and Kariyapperuma et al (2012) concluded that the difference between solid and liquid manure was attributed to higher N and water contents in the liquid manure, creating more favorable conditions for N 2 O producing microbes. Regarding the application method, Ellis et al (1998) reported that when the soil temperature was <6°C, N 2 O emissions from slurry injected into soils were higher than those from mineral fertilizer or from slurry applied to the soil surface.…”

Section: Nutrient Returns To Grazed Pastures In Winter When Animals Amentioning

confidence: 96%

“…Nitrous oxide emissions following the application of solid manure onto soils (70 kg N ha −1 ) during the non‐growing season (November–April in Canada) were shown to be lower (1.0 kg N ha −1 ) than those from liquid manures (1.4 kg N ha −1 ) (Kariyapperuma et al . ). In this case, the N 2 O emission peak occurred during the soil thawing period and Kariyapperuma et al .…”

Section: Winter Pasture Management Practices and Potential N2o Sourcesmentioning

confidence: 97%

“…In this case, the N 2 O emission peak occurred during the soil thawing period and Kariyapperuma et al . () concluded that the difference between solid and liquid manure was attributed to higher N and water contents in the liquid manure, creating more favorable conditions for N 2 O producing microbes. Regarding the application method, Ellis et al .…”

Section: Winter Pasture Management Practices and Potential N2o Sourcesmentioning

confidence: 99%

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Nitrous oxide emissions from pastures during wet and cold seasons

Uchida

Clough

2015

Grassland Science

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Grazed pastures contribute significantly to the global nitrous oxide (N 2 O) budget. In grazed pastures, the highest N 2 O emission rates are often reported during winter when soils are wet. This review discusses the current knowledge about factors controlling winter N 2 O emissions in grazed pastures. High N 2 O emissions from pastures during winter are also observed from winter-housed animal feeding systems. At near-zero temperature, N 2 O producing microbial activity is limited but some soil microbial communities adjust to low temperature better than others. Soil microbiological studies focusing on the identification of cold-tolerant denitrifiers and/or changes in microbial community structures under cold conditions are required. In winter-grazed pastures, the availability of substrates, such as nitrate (NO À 3 ) and labile organic carbon (C), for soil microbes producing N 2 O is influenced by factors such as animal wintering system, effluent management systems and plant activity. When animals are housed, N 2 O emissions during the winter storage of manures and the emissions after their application are important contributors to N 2 O inventories. The activity of pasture during winter and its relationship to N 2 O emissions requires further study in order to understand the competition between plants and N 2 O producing microbes for nitrogen, and the role of root exudation. Additionally, the effect of low temperatures on nutrient availability under urine patches is still not well known. The reduction of N 2 O to dinitrogen is regulated by an enzyme N 2 O reductase and its encoding gene (nosZ) expression needs to be studied in more detail to investigate the mechanisms behind winter N 2 O emissions. To mitigate N 2 O emissions during winter, restricted grazing regimes and the use of nitrification inhibitors have been studied; however, little is known about the effectiveness of these methods in mitigating N 2 O emissions during freeze/thaw cycles and during periods of snow-cover.

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Variation in methodology obscures clarity of cropland global warming potential estimates

2023

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Global warming potential (GWP) estimates from agroecosystems are valuable for understanding management effects on climate regulation services. However, GWP estimates are complex, including attributes with high spatiotemporal variability. Published GWP estimates from cropland were compiled and methodological attributes known to influence GWP were extracted. Results revealed considerable variation in approaches to estimate GWP. Among carbon balance methods, respiration methods were used most frequently (33%), followed by soil carbon stock change over time (30%). Twenty-six percent of studies did not account for carbon change in GWP estimates. Duration of gas flux measurements ranged from 0.5 to 60 months, with weekly and sub-weekly sampling most common (34% and 33%, respectively). Carbon dioxide equivalent conversion factors generally aligned with Intergovernmental Panel on Climate Change recommendations through 2014 but diverged thereafter. This review suggests the need for increased transparency in how GWP estimates are derived and communicated. Presentation of key metadata alongside GWP estimates is recommended.

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Non-growing season nitrous oxide fluxes from an agricultural soil as affected by application of liquid and composted swine manure

Cited by 31 publications

References 57 publications

Lower Nitrous Oxide Emissions from Anhydrous Ammonia Application Prior to Soil Freezing in Late Fall Than Spring Pre‐Plant Application

Lower Nitrous Oxide Emissions from Anhydrous Ammonia Application Prior to Soil Freezing in Late Fall Than Spring Pre‐Plant Application

Nitrous oxide emissions from pastures during wet and cold seasons

Variation in methodology obscures clarity of cropland global warming potential estimates

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