Comparison of different methods for the measurement of ammonia volatilization after urea application in Henan Province, China

Pacholski, Andreas; Cai, Giampiero; Fan, Xiangtao; Ding, Hong; Chen, Deli; Nieder, Rolf; Roelcke, Marco

doi:10.1002/jpln.200625195

Cited by 36 publications

(30 citation statements)

References 29 publications

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“…For the agricultural and forest soils, adding N significantly increased NH 3 volatilization (Tables 2 and 3), which is consistent with many studies (Hayashi et al 2006;Pacholski et al 2008). This result was predominantly due to the enhanced NH 4 + concentration after the application of N, irrespective of biochar addition.…”

Section: Discussion N 2 O Co 2 and Nh 3 Emissions Affected By N Deposupporting

confidence: 89%

Combined effects of nitrogen deposition and biochar application on emissions of N₂O, CO₂and NH₃from agricultural and forest soils

Sun

Chen

et al. 2014

Soil Science and Plant Nutrition

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Both nitrogen (N) deposition and biochar can affect the emissions of nitrous oxide (N 2 O), carbon dioxide (CO 2 ) and ammonia (NH 3 ) from different soils. Here, we have established a simulated wet N deposition experiment to investigate the effects of N deposition and biochar addition on N 2 O and CO 2 emissions and NH 3 volatilization from agricultural and forest soils. Repacked soil columns were subjected to six N deposition events over a 1-year period. N was applied at rates of 0 (N0), 60 (N60), and 120 (N120) kg Nh a −1 yr −1 without or with biochar (0 and 30 t ha). For agricultural soil, adding N increased cumulative N 2 O emissions by 29.8% and 99.1% (p < 0.05) from the N60 and N120 treatments, respectively as compared to without N treatments, and N120 emitted 53.4% more (p < 0.05) N 2 O than the N60 treatment; NH 3 volatilization increased by 33.6% and 91.9% (p < 0.05) from the N60 and N120 treatments, respectively, as compared to without N treatments, and N120 emitted 43.6% more (p < 0.05) NH 3 than N60; cumulative CO 2 emissions were not influenced by N addition. For forest soil, adding N significantly increased cumulative N 2 O emissions by 141.2% (p < 0.05) and 323.0% (p < 0.05) from N60 and N120 treatments, respectively, as compared to without N treatments, and N120 emitted 75.4% more (p < 0.05) N 2 O than N60; NH 3 volatilization increased by 39.0% (p < 0.05) and 56.1% (p < 0.05) from the N60 and N120 treatments, respectively, as compared to without N treatments, and there was no obvious difference between N120 and N60 treatments; cumulative CO 2 emissions were not influenced by N addition. Biochar amendment significantly (p < 0.05) decreased cumulative N 2 O emissions by 20.2% and 25.5% from agricultural and forest soils, respectively, and increased CO 2 emissions slightly by 7.2% and NH 3 volatilization obviously by 21.0% in the agricultural soil, while significantly decreasing CO 2 emissions by 31.5% and NH 3 volatilization by 22.5% in the forest soil. These results suggest that N deposition would strengthen N 2 O and NH 3 emissions and have no effect on CO 2 emissions in both soils, and treatments receiving the higher N rate at N120 emitted obviously more N 2 O and NH 3 than the lower rate at N60. Under the simulated N deposition circumstances, biochar incorporation suppressed N 2 O emissions in both soils, and produced contrasting effects on CO 2 and NH 3 emissions, being enhanced in the agricultural soil while suppressed in the forest soil.

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Section: Discussion N 2 O Co 2 and Nh 3 Emissions Affected By N Deposupporting

confidence: 89%

Combined effects of nitrogen deposition and biochar application on emissions of N₂O, CO₂and NH₃from agricultural and forest soils

Sun

Chen

et al. 2014

Soil Science and Plant Nutrition

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“…The cumulative NH 3 losses over time were then fitted with a sigmoidal logistic equation (Equation ), as described by Pacholski et al (), to compare the cumulative losses between treatments effectively. This equation also provided insight into the trend of cumulative emission data measured with PTGA.…”

Section: Methodsmentioning

confidence: 99%

Does soil amended with biochar and hydrochar reduce ammonia emissions following the application of pig slurry?

Subedi

Kammann

Pelissetti

et al. 2015

European J Soil Science

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Combining amendments to the soil made by biochar or hydrochar with nitrogen (N) fertilizer can modify soil N dynamics and availability. Such a response suggests that these amendments would affect ammonia (NH 3 ) emissions from slurry similarly, and potentially reduce volatilization of NH 3 . This study measured the potential emissions of NH 3 following application of pig slurry to the surface of silt-loam and loam soils amended with biochar and hydrochar (both derived from Miscanthus × giganteus (Greef et Deu)) at a rate of 3% soil dry weight (16 t ha −1 soil area, on average) and 60% water-filled pore space (WFPS). The experiment was carried out in a dynamic chamber connected to a photo-acoustic trace gas analyser in a controlled climate (20 ∘ C) for 48 hours. Statistically significant differences (P < 0.05) in total emissions were observed between both treatment and soil types. Surprisingly, both amendments increased emissions of NH 3 compared with the control; cumulative NH 3 emissions averaged 38.7 and 23.5% of applied total ammonium nitrogen (TAN) for hydrochar and biochar, respectively, whereas it was 18.2% for the control. The larger emissions in hydrochar-amended soil were attributed to the reduced ability to absorb NH 4 + associated with greater hydrophobicity and strong pH buffering of the slurry. Furthermore, final soil analyses with deionised water extracts showed significant differences (P < 0.05) in mineral N concentration between treatments. The smaller ammonium concentrations in biochar-amended soil suggest that some NH 4 + -N was immobilized by adsorption on to biochar surfaces. This study observed that biochar and hydrochar properties, as well as soil characteristics, play important roles in controlling NH 3 emissions from surface slurry applications. The results obtained identified circumstances where these amendments even enhance volatilization, which provides new information on and insight into the extent and limitations of the potential of biochar and hydrochar for the mitigation of emissions.

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“…Ammonia volatilization after fertilizer application is an important pathway of nitrogen (N) movement from the soil, resulting in large losses of soil-plant N (Harrison and Webb, 2001;Pacholski et al, 2008). The volatilized NH 3 represents a significant fraction of current emission inventories and is typically considered the second most important source of NH 3 in many countries.…”

Section: Introductionmentioning

confidence: 99%

Estimating the volatilization of ammonia from synthetic nitrogenous fertilizers used in China

Zhang

Luan

Chen

et al. 2011

Journal of Environmental Management

118

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Comparison of different methods for the measurement of ammonia volatilization after urea application in Henan Province, China

Cited by 36 publications

References 29 publications

Combined effects of nitrogen deposition and biochar application on emissions of N₂O, CO₂and NH₃from agricultural and forest soils

Combined effects of nitrogen deposition and biochar application on emissions of N₂O, CO₂and NH₃from agricultural and forest soils

Does soil amended with biochar and hydrochar reduce ammonia emissions following the application of pig slurry?

Estimating the volatilization of ammonia from synthetic nitrogenous fertilizers used in China

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Comparison of different methods for the measurement of ammonia volatilization after urea application in Henan Province, China

Cited by 36 publications

References 29 publications

Combined effects of nitrogen deposition and biochar application on emissions of N2O, CO2and NH3from agricultural and forest soils

Combined effects of nitrogen deposition and biochar application on emissions of N2O, CO2and NH3from agricultural and forest soils

Does soil amended with biochar and hydrochar reduce ammonia emissions following the application of pig slurry?

Estimating the volatilization of ammonia from synthetic nitrogenous fertilizers used in China

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Product

Resources

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Combined effects of nitrogen deposition and biochar application on emissions of N₂O, CO₂and NH₃from agricultural and forest soils

Combined effects of nitrogen deposition and biochar application on emissions of N₂O, CO₂and NH₃from agricultural and forest soils