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Effect of soil tillage and N fertilization on N2O mitigation in maize in the Brazilian Cerrado
The management system of soils and nitrogen application can cause impacts on the N2O emissions produced by the agricultural sector. In the establishment of practices of greenhouse gas mitigation for this sector, the objective of this study was to evaluate the effect of soil tillage, with and without...
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| Published in: | The Science of the total environment 2019-11, Vol.692, p.1165-1174 |
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| creator | Campanha, Mônica Matoso Oliveira, Alexsandra Duarte de Marriel, Ivanildo Evódio Gontijo Neto, Miguel Marques Malaquias, Juaci Vitoria Landau, Elena Charlotte Albuquerque Filho, Manoel Ricardo de Ribeiro, Fabiana Piontekowski Carvalho, Arminda Moreira de |
| description | The management system of soils and nitrogen application can cause impacts on the N2O emissions produced by the agricultural sector. In the establishment of practices of greenhouse gas mitigation for this sector, the objective of this study was to evaluate the effect of soil tillage, with and without N fertilization, on N2O emissions from Oxisols under rainfed maize in the Brazilian Cerrado region. The managements were of monoculture maize under conventional tillage (CT) and no-tillage (NT), with (1) and without (0) application of N fertilizer (0 and 257 kg N ha−1). From November 2014 to October 2015, gas emissions were measured. The soil and climate variables were measured and related to the N2O fluxes. In the N-fertilized treatments, N2O fluxes were higher (P |
| doi_str_mv | 10.1016/j.scitotenv.2019.07.315 |
| format | article |
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•Management and nitrogen fertilization influence N2O emissions from maize.•Nitrogen fertilization increased N2O emissions ten-fold in maize cropping systems.•Soil mineral N and soil moisture combined increases N2O emissions from the system.•No-tillage system emitting less N2O per kg of grain produced, being more efficient.•No tillage emitted less N2O than conventional tillage during crop cycle.</description><identifier>ISSN: 0048-9697</identifier><identifier>EISSN: 1879-1026</identifier><identifier>DOI: 10.1016/j.scitotenv.2019.07.315</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Emission factor ; Greenhouse gases ; N2O ; No-tillage</subject><ispartof>The Science of the total environment, 2019-11, Vol.692, p.1165-1174</ispartof><rights>2019 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c348t-51caf02882faaa82faa912bc3fac6b8fcf9754a470e9051f885e0f375125e2b43</citedby><cites>FETCH-LOGICAL-c348t-51caf02882faaa82faa912bc3fac6b8fcf9754a470e9051f885e0f375125e2b43</cites><orcidid>0000-0001-7133-5439</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Campanha, Mônica Matoso</creatorcontrib><creatorcontrib>Oliveira, Alexsandra Duarte de</creatorcontrib><creatorcontrib>Marriel, Ivanildo Evódio</creatorcontrib><creatorcontrib>Gontijo Neto, Miguel Marques</creatorcontrib><creatorcontrib>Malaquias, Juaci Vitoria</creatorcontrib><creatorcontrib>Landau, Elena Charlotte</creatorcontrib><creatorcontrib>Albuquerque Filho, Manoel Ricardo de</creatorcontrib><creatorcontrib>Ribeiro, Fabiana Piontekowski</creatorcontrib><creatorcontrib>Carvalho, Arminda Moreira de</creatorcontrib><title>Effect of soil tillage and N fertilization on N2O mitigation in maize in the Brazilian Cerrado</title><title>The Science of the total environment</title><description>The management system of soils and nitrogen application can cause impacts on the N2O emissions produced by the agricultural sector. In the establishment of practices of greenhouse gas mitigation for this sector, the objective of this study was to evaluate the effect of soil tillage, with and without N fertilization, on N2O emissions from Oxisols under rainfed maize in the Brazilian Cerrado region. The managements were of monoculture maize under conventional tillage (CT) and no-tillage (NT), with (1) and without (0) application of N fertilizer (0 and 257 kg N ha−1). From November 2014 to October 2015, gas emissions were measured. The soil and climate variables were measured and related to the N2O fluxes. In the N-fertilized treatments, N2O fluxes were higher (P < 0.01), ranging from −21 μg m−2 h−1 to 548 μg m−2 h−1 N2O under conventional tillage and from −21 μg m−2 h−1 to 380 μg m−2 h−1 N2O under no-tillage, compared with −6 to 93 μg m−2 h−1 N2O from systems without N application. There was a combined effect of mineral N and water-filled pore space for most N2O fluxes. The emission factors of N2O during maize cultivation were lower than the standard factor (1%) established by the International Panel of Climate Change. During the plant crop cycle, 30% less N2O was emitted from the N-fertilized no-tillage than from the conventional tillage. For the total cumulative N2O (crop cycle + fallow), the N2O emissions from NT1 and CT1 were not different, but 10× higher than those from the respective crops without N fertilization. To the emissions per unit of grain yield, CT1 and NT1 emitted 769 and 391 mg N2O kg−1 grain produced, respectively, and NT1 was most efficient in fertilizer-into-product conversion. Under maize cultivation, the soil acted as N2O source, regardless of the management.
[Display omitted]
•Management and nitrogen fertilization influence N2O emissions from maize.•Nitrogen fertilization increased N2O emissions ten-fold in maize cropping systems.•Soil mineral N and soil moisture combined increases N2O emissions from the system.•No-tillage system emitting less N2O per kg of grain produced, being more efficient.•No tillage emitted less N2O than conventional tillage during crop cycle.</description><subject>Emission factor</subject><subject>Greenhouse gases</subject><subject>N2O</subject><subject>No-tillage</subject><issn>0048-9697</issn><issn>1879-1026</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNqFkE1LAzEQhoMoWKu_wRy97JpkP5I91lI_oLQXvRrS7KSmtJuapAX768264tVhmBmG9x2YB6FbSnJKaH2_yYO20UXojjkjtMkJzwtanaERFbzJKGH1ORoRUoqsqRt-ia5C2JAUXNARep8ZAzpiZ3Bwdouj3W7VGrDqWrzABnxa2JOK1nU45YIt8c5Gux42tsM7ZU_QD_ED8INXp6RXHZ6C96p11-jCqG2Am98-Rm-Ps9fpczZfPr1MJ_NMF6WIWUW1MoQJwYxS6qc2lK10YZSuV8Jo0_CqVCUn0JCKGiEqIKbgFWUVsFVZjNHdcHfv3ecBQpQ7GzSkXzpwhyAZa6pS1LymScoHqfYuBA9G7r3dKf8lKZE9UbmRf0RlT1QSLhPR5JwMTkifHC34Xgedhtb6xFC2zv574xs29oRW</recordid><startdate>20191120</startdate><enddate>20191120</enddate><creator>Campanha, Mônica Matoso</creator><creator>Oliveira, Alexsandra Duarte de</creator><creator>Marriel, Ivanildo Evódio</creator><creator>Gontijo Neto, Miguel Marques</creator><creator>Malaquias, Juaci Vitoria</creator><creator>Landau, Elena Charlotte</creator><creator>Albuquerque Filho, Manoel Ricardo de</creator><creator>Ribeiro, Fabiana Piontekowski</creator><creator>Carvalho, Arminda Moreira de</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0001-7133-5439</orcidid></search><sort><creationdate>20191120</creationdate><title>Effect of soil tillage and N fertilization on N2O mitigation in maize in the Brazilian Cerrado</title><author>Campanha, Mônica Matoso ; Oliveira, Alexsandra Duarte de ; Marriel, Ivanildo Evódio ; Gontijo Neto, Miguel Marques ; Malaquias, Juaci Vitoria ; Landau, Elena Charlotte ; Albuquerque Filho, Manoel Ricardo de ; Ribeiro, Fabiana Piontekowski ; Carvalho, Arminda Moreira de</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c348t-51caf02882faaa82faa912bc3fac6b8fcf9754a470e9051f885e0f375125e2b43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Emission factor</topic><topic>Greenhouse gases</topic><topic>N2O</topic><topic>No-tillage</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Campanha, Mônica Matoso</creatorcontrib><creatorcontrib>Oliveira, Alexsandra Duarte de</creatorcontrib><creatorcontrib>Marriel, Ivanildo Evódio</creatorcontrib><creatorcontrib>Gontijo Neto, Miguel Marques</creatorcontrib><creatorcontrib>Malaquias, Juaci Vitoria</creatorcontrib><creatorcontrib>Landau, Elena Charlotte</creatorcontrib><creatorcontrib>Albuquerque Filho, Manoel Ricardo de</creatorcontrib><creatorcontrib>Ribeiro, Fabiana Piontekowski</creatorcontrib><creatorcontrib>Carvalho, Arminda Moreira de</creatorcontrib><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>The Science of the total environment</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Campanha, Mônica Matoso</au><au>Oliveira, Alexsandra Duarte de</au><au>Marriel, Ivanildo Evódio</au><au>Gontijo Neto, Miguel Marques</au><au>Malaquias, Juaci Vitoria</au><au>Landau, Elena Charlotte</au><au>Albuquerque Filho, Manoel Ricardo de</au><au>Ribeiro, Fabiana Piontekowski</au><au>Carvalho, Arminda Moreira de</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of soil tillage and N fertilization on N2O mitigation in maize in the Brazilian Cerrado</atitle><jtitle>The Science of the total environment</jtitle><date>2019-11-20</date><risdate>2019</risdate><volume>692</volume><spage>1165</spage><epage>1174</epage><pages>1165-1174</pages><issn>0048-9697</issn><eissn>1879-1026</eissn><abstract>The management system of soils and nitrogen application can cause impacts on the N2O emissions produced by the agricultural sector. In the establishment of practices of greenhouse gas mitigation for this sector, the objective of this study was to evaluate the effect of soil tillage, with and without N fertilization, on N2O emissions from Oxisols under rainfed maize in the Brazilian Cerrado region. The managements were of monoculture maize under conventional tillage (CT) and no-tillage (NT), with (1) and without (0) application of N fertilizer (0 and 257 kg N ha−1). From November 2014 to October 2015, gas emissions were measured. The soil and climate variables were measured and related to the N2O fluxes. In the N-fertilized treatments, N2O fluxes were higher (P < 0.01), ranging from −21 μg m−2 h−1 to 548 μg m−2 h−1 N2O under conventional tillage and from −21 μg m−2 h−1 to 380 μg m−2 h−1 N2O under no-tillage, compared with −6 to 93 μg m−2 h−1 N2O from systems without N application. There was a combined effect of mineral N and water-filled pore space for most N2O fluxes. The emission factors of N2O during maize cultivation were lower than the standard factor (1%) established by the International Panel of Climate Change. During the plant crop cycle, 30% less N2O was emitted from the N-fertilized no-tillage than from the conventional tillage. For the total cumulative N2O (crop cycle + fallow), the N2O emissions from NT1 and CT1 were not different, but 10× higher than those from the respective crops without N fertilization. To the emissions per unit of grain yield, CT1 and NT1 emitted 769 and 391 mg N2O kg−1 grain produced, respectively, and NT1 was most efficient in fertilizer-into-product conversion. Under maize cultivation, the soil acted as N2O source, regardless of the management.
[Display omitted]
•Management and nitrogen fertilization influence N2O emissions from maize.•Nitrogen fertilization increased N2O emissions ten-fold in maize cropping systems.•Soil mineral N and soil moisture combined increases N2O emissions from the system.•No-tillage system emitting less N2O per kg of grain produced, being more efficient.•No tillage emitted less N2O than conventional tillage during crop cycle.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.scitotenv.2019.07.315</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0001-7133-5439</orcidid></addata></record> |
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| subjects | Emission factor Greenhouse gases N2O No-tillage |
| title | Effect of soil tillage and N fertilization on N2O mitigation in maize in the Brazilian Cerrado |
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