The interactive effects of fertiliser nitrogen with dung and urine on nitrous oxide emissions in grassland
Nitrous oxide (N2O) is an important and potent greenhouse gas (GHG). Although application of nitrogen (N) fertiliser is a feature of many grazing systems, limited data is available on N2O emissions in grassland as a result of the interaction between urine, dung and fertiliser N. A small plot study w...
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| Format: | Article |
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Compuscript Ltd
2016-06-01
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| Series: | Irish Journal of Agricultural and Food Research |
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| Online Access: | http://www.degruyter.com/view/j/ijafr.2016.55.issue-1/ijafr-2016-0001/ijafr-2016-0001.xml?format=INT |
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| author | Hyde B.P. Forrestal P.J. Jahangir M.M.R. Ryan M. Fanning A.F. Carton O.T. Lanigan G.J. Richards K.G. |
| author_facet | Hyde B.P. Forrestal P.J. Jahangir M.M.R. Ryan M. Fanning A.F. Carton O.T. Lanigan G.J. Richards K.G. |
| author_sort | Hyde B.P. |
| collection | DOAJ |
| description | Nitrous oxide (N2O) is an important and potent greenhouse gas (GHG). Although application of nitrogen (N) fertiliser is a feature of many grazing systems, limited data is available on N2O emissions in grassland as a result of the interaction between urine, dung and fertiliser N. A small plot study was conducted to identify the individual and interactive effects of calcium ammonium nitrate (CAN) fertiliser, dung and urine. Application of CAN with dung and urine significantly increased the mass of N2O-N emission. Importantly, the sum of N2O-N emitted from dung and CAN applied individually approximated the emission from dung and CAN fertiliser applied together, that is, an additive effect. However, in the case of urine and CAN applied together, the emission was more than double the sum of the emission from urine and CAN fertiliser applied individually, that is, a multiplicative effect. Nitrous oxide emissions from dung, urine and fertiliser N are typically derived individually and these individual emission estimates are aggregated to produce estimates of N2O emission. The presented findings have important implications for how individual emission factors are aggregated; they suggest that the multiplicative effect of the addition of CAN fertiliser to urine patches needs to be taken into account to refine the estimation of N2O emissions from grazing grasslands. |
| first_indexed | 2024-03-12T18:45:00Z |
| format | Article |
| id | doaj.art-bdf3b9275e064bf5b8eefbb726513004 |
| institution | Directory Open Access Journal |
| issn | 2009-9029 |
| language | English |
| last_indexed | 2024-03-12T18:45:00Z |
| publishDate | 2016-06-01 |
| publisher | Compuscript Ltd |
| record_format | Article |
| series | Irish Journal of Agricultural and Food Research |
| spelling | doaj.art-bdf3b9275e064bf5b8eefbb7265130042023-08-02T07:42:18ZengCompuscript LtdIrish Journal of Agricultural and Food Research2009-90292016-06-015511910.1515/ijafr-2016-0001ijafr-2016-0001The interactive effects of fertiliser nitrogen with dung and urine on nitrous oxide emissions in grasslandHyde B.P.0Forrestal P.J.1Jahangir M.M.R.2Ryan M.3Fanning A.F.4Carton O.T.5Lanigan G.J.6Richards K.G.7 Office of Climate, Licensing and Resource Use, Environmental Protection Agency, Regional Inspectorate, Monaghan, Ireland Department of Crops, Environment, & Land Use, Teagasc, Johnstown Castle, Wexford, Ireland Department of Crops, Environment, & Land Use, Teagasc, Johnstown Castle, Wexford, Ireland Department of Crops, Environment, & Land Use, Teagasc, Johnstown Castle, Wexford, Ireland Department of Crops, Environment, & Land Use, Teagasc, Johnstown Castle, Wexford, Ireland Department of Crops, Environment, & Land Use, Teagasc, Johnstown Castle, Wexford, Ireland Department of Crops, Environment, & Land Use, Teagasc, Johnstown Castle, Wexford, Ireland Department of Crops, Environment, & Land Use, Teagasc, Johnstown Castle, Wexford, IrelandNitrous oxide (N2O) is an important and potent greenhouse gas (GHG). Although application of nitrogen (N) fertiliser is a feature of many grazing systems, limited data is available on N2O emissions in grassland as a result of the interaction between urine, dung and fertiliser N. A small plot study was conducted to identify the individual and interactive effects of calcium ammonium nitrate (CAN) fertiliser, dung and urine. Application of CAN with dung and urine significantly increased the mass of N2O-N emission. Importantly, the sum of N2O-N emitted from dung and CAN applied individually approximated the emission from dung and CAN fertiliser applied together, that is, an additive effect. However, in the case of urine and CAN applied together, the emission was more than double the sum of the emission from urine and CAN fertiliser applied individually, that is, a multiplicative effect. Nitrous oxide emissions from dung, urine and fertiliser N are typically derived individually and these individual emission estimates are aggregated to produce estimates of N2O emission. The presented findings have important implications for how individual emission factors are aggregated; they suggest that the multiplicative effect of the addition of CAN fertiliser to urine patches needs to be taken into account to refine the estimation of N2O emissions from grazing grasslands.http://www.degruyter.com/view/j/ijafr.2016.55.issue-1/ijafr-2016-0001/ijafr-2016-0001.xml?format=INTcalcium ammonium nitrate fertiliserdisaggregated emission factorsdungnitrous oxideurine |
| spellingShingle | Hyde B.P. Forrestal P.J. Jahangir M.M.R. Ryan M. Fanning A.F. Carton O.T. Lanigan G.J. Richards K.G. The interactive effects of fertiliser nitrogen with dung and urine on nitrous oxide emissions in grassland Irish Journal of Agricultural and Food Research calcium ammonium nitrate fertiliser disaggregated emission factors dung nitrous oxide urine |
| title | The interactive effects of fertiliser nitrogen with dung and urine on nitrous oxide emissions in grassland |
| title_full | The interactive effects of fertiliser nitrogen with dung and urine on nitrous oxide emissions in grassland |
| title_fullStr | The interactive effects of fertiliser nitrogen with dung and urine on nitrous oxide emissions in grassland |
| title_full_unstemmed | The interactive effects of fertiliser nitrogen with dung and urine on nitrous oxide emissions in grassland |
| title_short | The interactive effects of fertiliser nitrogen with dung and urine on nitrous oxide emissions in grassland |
| title_sort | interactive effects of fertiliser nitrogen with dung and urine on nitrous oxide emissions in grassland |
| topic | calcium ammonium nitrate fertiliser disaggregated emission factors dung nitrous oxide urine |
| url | http://www.degruyter.com/view/j/ijafr.2016.55.issue-1/ijafr-2016-0001/ijafr-2016-0001.xml?format=INT |
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