Short-Term Assessment of Nitrous Oxide and Methane Emissions on a Crop Yield Basis in Response to Different Organic Amendment Types in Sichuan Basin
Agriculture’s goal to meet the needs of the increasing world population while reducing the environmental impacts of nitrogen (N) fertilizer use without compromising output has proven to be a challenge. Manure and composts have displayed the potential to increase soil fertility. However, their potent...
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| Format: | Article |
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MDPI AG
2021-08-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/12/9/1104 |
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| author | Dayo George Oladipo Kai Wei Lei Hu Ayodeji Medaiyese Hamidou Bah Lanre Anthony Gbadegesin Bo Zhu |
| author_facet | Dayo George Oladipo Kai Wei Lei Hu Ayodeji Medaiyese Hamidou Bah Lanre Anthony Gbadegesin Bo Zhu |
| author_sort | Dayo George Oladipo |
| collection | DOAJ |
| description | Agriculture’s goal to meet the needs of the increasing world population while reducing the environmental impacts of nitrogen (N) fertilizer use without compromising output has proven to be a challenge. Manure and composts have displayed the potential to increase soil fertility. However, their potential effects on nitrous oxide (N<sub>2</sub>O) and methane (CH<sub>4</sub>) emissions have not been properly understood. Using field-scaled lysimeter experiments, we conducted a one-year study to investigate N<sub>2</sub>O and CH<sub>4</sub> emissions, their combined global warming potential (GWP: N<sub>2</sub>O + CH<sub>4</sub>) and yield-scaled GWP in a wheat-maize system. One control and six different organic fertilizer treatments receiving different types but equal amounts of N fertilization were used: synthetic N fertilizer (NPK), 30% pig manure + 70% synthetic N fertilizer (PM30), 50% pig manure + 50% synthetic N fertilizer (PM50), 70% pig manure + 30% synthetic N fertilizer (PM70), 100% pig manure (PM100), 50% cow manure-crop residue compost + 50% synthetic N fertilizer (CMRC), and 50% pig manure-crop residue compost + 50% synthetic N fertilizer (PMRC). Seasonal cumulative N<sub>2</sub>O emissions ranged from 0.39 kg N ha<sup>−1</sup> for the PMRC treatment to 0.93 kg N ha<sup>−1</sup> for the NPK treatment. Similar CH<sub>4</sub> uptakes were recorded across all treatments, with values ranging from −0.68 kg C ha<sup>−1</sup> for the PM50 treatment to −0.52 kg C ha<sup>−1</sup> for the PM30 treatment. Compared to the NPK treatment, all the organic-amended treatments significantly decreased N<sub>2</sub>O emission by 32–58% and GWP by 30–61%. However, among the manure-amended treatments, only treatments that consisted of inorganic N with lower or equal proportions of organic manure N treatments were found to reduce N<sub>2</sub>O emissions while maintaining crop yields at high levels. Moreover, of all the organic-amended treatments, PMRC had the lowest yield-scaled GWP, owing to its ability to significantly reduce N<sub>2</sub>O emissions while maintaining high crop yields, highlighting it as the most suitable organic fertilization treatment in Sichuan basin wheat-maize systems. |
| first_indexed | 2024-03-10T07:53:48Z |
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| id | doaj.art-0639a3e23b0c4a10a47992f7eaf754ac |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-10T07:53:48Z |
| publishDate | 2021-08-01 |
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| series | Atmosphere |
| spelling | doaj.art-0639a3e23b0c4a10a47992f7eaf754ac2023-11-22T11:59:17ZengMDPI AGAtmosphere2073-44332021-08-01129110410.3390/atmos12091104Short-Term Assessment of Nitrous Oxide and Methane Emissions on a Crop Yield Basis in Response to Different Organic Amendment Types in Sichuan BasinDayo George Oladipo0Kai Wei1Lei Hu2Ayodeji Medaiyese3Hamidou Bah4Lanre Anthony Gbadegesin5Bo Zhu6Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, ChinaKey Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, ChinaKey Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, ChinaSchool of Science and the Environment, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G4, CanadaInstitut Supérieur Agronomique et Vétérinaire de Faranah (ISAV/F), Faranah 131, GuineaKey Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, ChinaKey Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, ChinaAgriculture’s goal to meet the needs of the increasing world population while reducing the environmental impacts of nitrogen (N) fertilizer use without compromising output has proven to be a challenge. Manure and composts have displayed the potential to increase soil fertility. However, their potential effects on nitrous oxide (N<sub>2</sub>O) and methane (CH<sub>4</sub>) emissions have not been properly understood. Using field-scaled lysimeter experiments, we conducted a one-year study to investigate N<sub>2</sub>O and CH<sub>4</sub> emissions, their combined global warming potential (GWP: N<sub>2</sub>O + CH<sub>4</sub>) and yield-scaled GWP in a wheat-maize system. One control and six different organic fertilizer treatments receiving different types but equal amounts of N fertilization were used: synthetic N fertilizer (NPK), 30% pig manure + 70% synthetic N fertilizer (PM30), 50% pig manure + 50% synthetic N fertilizer (PM50), 70% pig manure + 30% synthetic N fertilizer (PM70), 100% pig manure (PM100), 50% cow manure-crop residue compost + 50% synthetic N fertilizer (CMRC), and 50% pig manure-crop residue compost + 50% synthetic N fertilizer (PMRC). Seasonal cumulative N<sub>2</sub>O emissions ranged from 0.39 kg N ha<sup>−1</sup> for the PMRC treatment to 0.93 kg N ha<sup>−1</sup> for the NPK treatment. Similar CH<sub>4</sub> uptakes were recorded across all treatments, with values ranging from −0.68 kg C ha<sup>−1</sup> for the PM50 treatment to −0.52 kg C ha<sup>−1</sup> for the PM30 treatment. Compared to the NPK treatment, all the organic-amended treatments significantly decreased N<sub>2</sub>O emission by 32–58% and GWP by 30–61%. However, among the manure-amended treatments, only treatments that consisted of inorganic N with lower or equal proportions of organic manure N treatments were found to reduce N<sub>2</sub>O emissions while maintaining crop yields at high levels. Moreover, of all the organic-amended treatments, PMRC had the lowest yield-scaled GWP, owing to its ability to significantly reduce N<sub>2</sub>O emissions while maintaining high crop yields, highlighting it as the most suitable organic fertilization treatment in Sichuan basin wheat-maize systems.https://www.mdpi.com/2073-4433/12/9/1104greenhouse gasesnitrous oxide emissionsmethane emissionsyield-scaled GWPmanurecompost |
| spellingShingle | Dayo George Oladipo Kai Wei Lei Hu Ayodeji Medaiyese Hamidou Bah Lanre Anthony Gbadegesin Bo Zhu Short-Term Assessment of Nitrous Oxide and Methane Emissions on a Crop Yield Basis in Response to Different Organic Amendment Types in Sichuan Basin Atmosphere greenhouse gases nitrous oxide emissions methane emissions yield-scaled GWP manure compost |
| title | Short-Term Assessment of Nitrous Oxide and Methane Emissions on a Crop Yield Basis in Response to Different Organic Amendment Types in Sichuan Basin |
| title_full | Short-Term Assessment of Nitrous Oxide and Methane Emissions on a Crop Yield Basis in Response to Different Organic Amendment Types in Sichuan Basin |
| title_fullStr | Short-Term Assessment of Nitrous Oxide and Methane Emissions on a Crop Yield Basis in Response to Different Organic Amendment Types in Sichuan Basin |
| title_full_unstemmed | Short-Term Assessment of Nitrous Oxide and Methane Emissions on a Crop Yield Basis in Response to Different Organic Amendment Types in Sichuan Basin |
| title_short | Short-Term Assessment of Nitrous Oxide and Methane Emissions on a Crop Yield Basis in Response to Different Organic Amendment Types in Sichuan Basin |
| title_sort | short term assessment of nitrous oxide and methane emissions on a crop yield basis in response to different organic amendment types in sichuan basin |
| topic | greenhouse gases nitrous oxide emissions methane emissions yield-scaled GWP manure compost |
| url | https://www.mdpi.com/2073-4433/12/9/1104 |
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