Soil Nitrous Oxide (N2O) Emission from Integrated Soil Fertility Management in Maize (Zea mays L.) Cropping Systems
Integrated Soil Fertility Management (ISFM) has been recommended to address challenges of low soil fertility by incorporating locally available organic resources (ORs) together with inorganic nitrogen (N) fertilizers. Despite ISFM success in field trials, there is limited information on ORs contribu...
| Autores principales: | , , , , |
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| Formato: | Conference Paper |
| Lenguaje: | Inglés |
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International Livestock Research Institute
2021
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| Acceso en línea: | https://hdl.handle.net/10568/119668 |
| _version_ | 1855537838310817792 |
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| author | Rogito, R. Karanja, N. Merbold, Lutz Necpalova, M. Six, Johan |
| author_browse | Karanja, N. Merbold, Lutz Necpalova, M. Rogito, R. Six, Johan |
| author_facet | Rogito, R. Karanja, N. Merbold, Lutz Necpalova, M. Six, Johan |
| author_sort | Rogito, R. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Integrated Soil Fertility Management (ISFM) has been recommended to address challenges of low soil fertility by incorporating locally available organic resources (ORs) together with inorganic nitrogen (N) fertilizers. Despite ISFM success in field trials, there is limited information on ORs contribution to atmospheric greenhouse gas concentrations through N2O emission. A short-term field study was conducted at two sites with different soil types; silt loam (Aludeka) and silty-clay soil (Sidada) to assess the influence of selected ORs on soil N2O emissions. The ORs treatments included; Calliandra carothyrsus (CL), farmyard manure (FYM) and maize stover (MS) with (+N) and without (-N) inorganic N fertilizer. The study also evaluated the relationship between N2O emissions and soil organic carbon, mineral N, total nitrogen, soil temperature, moisture content, soil nitrate (NO3-) and ammonium (NH4+). Relative to the control (0.19�0.1 Kg N2O-N ha-1), cumulative N2O emissions were significantly (P= 0.01) higher by 6, 9 and 13 fold under MS +N (1.05�0.8 Kg N2O-N ha-1), FYM +N (1.74�0.8 Kg N2O-N ha-1) and CL +N (2.54�1.2 Kg N2O-N ha-1), respectively at the Aludeka site. At Sidada, cumulative N2O emissions were similar across all the treatments (P = 0.149). Approximately 240% and 411% of increase in cumulative N2O emissions across treatments at Sidada and Aludeka, respectively, was related to inorganic N fertilizer application. At Aludeka, cumulative N2O emissions exhibited significant positive relationship with soil NO3-(r = 0.894, P = 0.03) and NH4+ (r = 0.817, P = 0.013), and negatively correlated with soil C: N ratio (r = -0.710, P = 0.049). While at Sidada soil properties did not exhibit significant relationship with cumulative N2O emissions. The study suggests that influence of OR on N2O emissions in maize based-cropping system vary depending on the type of soil and increases when OR are applied in combination with inorganic N fertilizers. |
| format | Conference Paper |
| id | CGSpace119668 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | International Livestock Research Institute |
| publisherStr | International Livestock Research Institute |
| record_format | dspace |
| spelling | CGSpace1196682025-12-08T09:54:28Z Soil Nitrous Oxide (N2O) Emission from Integrated Soil Fertility Management in Maize (Zea mays L.) Cropping Systems Rogito, R. Karanja, N. Merbold, Lutz Necpalova, M. Six, Johan greenhouse gas emissions maize Integrated Soil Fertility Management (ISFM) has been recommended to address challenges of low soil fertility by incorporating locally available organic resources (ORs) together with inorganic nitrogen (N) fertilizers. Despite ISFM success in field trials, there is limited information on ORs contribution to atmospheric greenhouse gas concentrations through N2O emission. A short-term field study was conducted at two sites with different soil types; silt loam (Aludeka) and silty-clay soil (Sidada) to assess the influence of selected ORs on soil N2O emissions. The ORs treatments included; Calliandra carothyrsus (CL), farmyard manure (FYM) and maize stover (MS) with (+N) and without (-N) inorganic N fertilizer. The study also evaluated the relationship between N2O emissions and soil organic carbon, mineral N, total nitrogen, soil temperature, moisture content, soil nitrate (NO3-) and ammonium (NH4+). Relative to the control (0.19�0.1 Kg N2O-N ha-1), cumulative N2O emissions were significantly (P= 0.01) higher by 6, 9 and 13 fold under MS +N (1.05�0.8 Kg N2O-N ha-1), FYM +N (1.74�0.8 Kg N2O-N ha-1) and CL +N (2.54�1.2 Kg N2O-N ha-1), respectively at the Aludeka site. At Sidada, cumulative N2O emissions were similar across all the treatments (P = 0.149). Approximately 240% and 411% of increase in cumulative N2O emissions across treatments at Sidada and Aludeka, respectively, was related to inorganic N fertilizer application. At Aludeka, cumulative N2O emissions exhibited significant positive relationship with soil NO3-(r = 0.894, P = 0.03) and NH4+ (r = 0.817, P = 0.013), and negatively correlated with soil C: N ratio (r = -0.710, P = 0.049). While at Sidada soil properties did not exhibit significant relationship with cumulative N2O emissions. The study suggests that influence of OR on N2O emissions in maize based-cropping system vary depending on the type of soil and increases when OR are applied in combination with inorganic N fertilizers. 2021 2022-05-26T19:27:42Z 2022-05-26T19:27:42Z Conference Paper https://hdl.handle.net/10568/119668 en Open Access application/pdf International Livestock Research Institute Rogito, R., Karanja, N., Merbold, Lutz, Necpalova, M., Six, J. 2021. Soil Nitrous Oxide (N2O) Emission from Integrated Soil Fertility Management in Maize (Zea mays L.) Cropping Systems. Paper presented at the Joint XXIV International Grassland Congress and XI Rangeland 2021 Congress, Nairobi, Kenya, 25-29 October 2021. Nairobi: ILRI |
| spellingShingle | greenhouse gas emissions maize Rogito, R. Karanja, N. Merbold, Lutz Necpalova, M. Six, Johan Soil Nitrous Oxide (N2O) Emission from Integrated Soil Fertility Management in Maize (Zea mays L.) Cropping Systems |
| title | Soil Nitrous Oxide (N2O) Emission from Integrated Soil Fertility Management in Maize (Zea mays L.) Cropping Systems |
| title_full | Soil Nitrous Oxide (N2O) Emission from Integrated Soil Fertility Management in Maize (Zea mays L.) Cropping Systems |
| title_fullStr | Soil Nitrous Oxide (N2O) Emission from Integrated Soil Fertility Management in Maize (Zea mays L.) Cropping Systems |
| title_full_unstemmed | Soil Nitrous Oxide (N2O) Emission from Integrated Soil Fertility Management in Maize (Zea mays L.) Cropping Systems |
| title_short | Soil Nitrous Oxide (N2O) Emission from Integrated Soil Fertility Management in Maize (Zea mays L.) Cropping Systems |
| title_sort | soil nitrous oxide n2o emission from integrated soil fertility management in maize zea mays l cropping systems |
| topic | greenhouse gas emissions maize |
| url | https://hdl.handle.net/10568/119668 |
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