scholarly journals Nitric and nitrous oxide emissions following fertilizer application to agricultural soil: Biotic and abiotic mechanisms and kinetics

2000 ◽  
Vol 105 (D12) ◽  
pp. 15117-15129 ◽  
Author(s):  
Rodney T. Venterea ◽  
Dennis E. Rolston
Keyword(s):  
Nitrous Oxide ◽  
Agricultural Soil ◽  
Fertilizer Application ◽  
Nitrous Oxide Emissions

scholarly journals Quantifying N2O emissions from intensive grassland production: the role of synthetic fertilizer type, application rate, timing and nitrification inhibitors

2016 ◽  
Vol 154 (5) ◽  
pp. 812-827 ◽  
Author(s):  
M. J. BELL ◽  
J. M. CLOY ◽  
C. F. E. TOPP ◽  
B. C. BALL ◽  
A. BAGNALL ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Fertilizer Application ◽  
Application Rate ◽  
Nitrous Oxide Emissions ◽  
Mineral Fertilizers ◽  
Urea Fertilizer ◽  
Mitigation Options ◽  
Application Rates ◽  
The Impact ◽  
Ipcc Default

SUMMARYIncreasing recognition of the extent to which nitrous oxide (N2O) contributes to climate change has resulted in greater demand to improve quantification of N2O emissions, identify emission sources and suggest mitigation options. Agriculture is by far the largest source and grasslands, occupying c. 0·22 of European agricultural land, are a major land-use within this sector. The application of mineral fertilizers to optimize pasture yields is a major source of N2O and with increasing pressure to increase agricultural productivity, options to quantify and reduce emissions whilst maintaining sufficient grassland for a given intensity of production are required. Identification of the source and extent of emissions will help to improve reporting in national inventories, with the most common approach using the IPCC emission factor (EF) default, where 0·01 of added nitrogen fertilizer is assumed to be emitted directly as N2O. The current experiment aimed to establish the suitability of applying this EF to fertilized Scottish grasslands and to identify variation in the EF depending on the application rate of ammonium nitrate (AN). Mitigation options to reduce N2O emissions were also investigated, including the use of urea fertilizer in place of AN, addition of a nitrification inhibitor dicyandiamide (DCD) and application of AN in smaller, more frequent doses. Nitrous oxide emissions were measured from a cut grassland in south-west Scotland from March 2011 to March 2012. Grass yield was also measured to establish the impact of mitigation options on grass production, along with soil and environmental variables to improve understanding of the controls on N2O emissions. A monotonic increase in annual cumulative N2O emissions was observed with increasing AN application rate. Emission factors ranging from 1·06–1·34% were measured for AN application rates between 80 and 320 kg N/ha, with a mean of 1·19%. A lack of any significant difference between these EFs indicates that use of a uniform EF is suitable over these application rates. The mean EF of 1·19% exceeds the IPCC default 1%, suggesting that use of the default value may underestimate emissions of AN-fertilizer-induced N2O loss from Scottish grasslands. The increase in emissions beyond an application rate of 320 kg N/ha produced an EF of 1·74%, significantly different to that from lower application rates and much greater than the 1% default. An EF of 0·89% for urea fertilizer and 0·59% for urea with DCD suggests that N2O quantification using the IPCC default EF will overestimate emissions for grasslands where these fertilizers are applied. Large rainfall shortly after fertilizer application appears to be the main trigger for N2O emissions, thus applicability of the 1% EF could vary and depend on the weather conditions at the time of fertilizer application.

Modeling the Effects of Fertilizer Application Rate on Nitrous Oxide Emissions

2006 ◽  
Vol 70 (1) ◽  
pp. 235-248 ◽  
Author(s):  
R. F. Grant ◽  
E. Pattey ◽  
T. W. Goddard ◽  
L. M. Kryzanowski ◽  
H. Puurveen
Keyword(s):  
Nitrous Oxide ◽  
Fertilizer Application ◽  
Application Rate ◽  
Nitrous Oxide Emissions ◽  
Fertilizer Application Rate

Nitrous oxide emissions following split fertilizer application on winter wheat grown on Mollisols of Southern Alberta, Canada

2020 ◽  
Vol 21 ◽  
pp. e00272
Author(s):  
Haibo An ◽  
Jen Owens ◽  
Jessica Stoeckli ◽  
Xiying Hao ◽  
Brian Beres ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Winter Wheat ◽  
Fertilizer Application ◽  
Nitrous Oxide Emissions ◽  
Southern Alberta

scholarly journals Methane and nitrous oxide emissions from a paddy field with Japanese conventional water management and fertilizer application

2004 ◽  
Vol 18 (2) ◽  
pp. n/a-n/a ◽  
Author(s):  
Seiichi Nishimura ◽  
Takuji Sawamoto ◽  
Hiroko Akiyama ◽  
Shigeto Sudo ◽  
Kazuyuki Yagi
Keyword(s):  
Water Management ◽  
Nitrous Oxide ◽  
Paddy Field ◽  
Fertilizer Application ◽  
Nitrous Oxide Emissions

scholarly journals Intensive field measurements of nitrous oxide emissions from a tropical agricultural soil

2000 ◽  
Vol 14 (1) ◽  
pp. 85-95 ◽  
Author(s):  
P. M. Crill ◽  
M. Keller ◽  
A. Weitz ◽  
B. Grauel ◽  
E. Veldkamp
Keyword(s):  
Nitrous Oxide ◽  
Agricultural Soil ◽  
Field Measurements ◽  
Nitrous Oxide Emissions

Plant diversity decreases potential nitrous oxide emissions from restored agricultural soil

Pedobiologia ◽  
2020 ◽  
Vol 83 ◽  
pp. 150670
Author(s):  
Drew A. Scott ◽  
Kathryn D. Eckhoff ◽  
Sara G. Baer
Keyword(s):  
Nitrous Oxide ◽  
Plant Diversity ◽  
Agricultural Soil ◽  
Nitrous Oxide Emissions

Carbon Dioxide and Nitrous Oxide Emissions following Fall and Spring Applications of Pig Slurry to an Agricultural Soil

2004 ◽  
Vol 68 (4) ◽  
pp. 1410-1420 ◽  
Author(s):  
Philippe Rochette ◽  
Denis A. Angers ◽  
Martin H. Chantigny ◽  
Normand Bertrand ◽  
Denis Côté
Keyword(s):  
Carbon Dioxide ◽  
Nitrous Oxide ◽  
Agricultural Soil ◽  
Nitrous Oxide Emissions ◽  
Pig Slurry
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