Using cover crops to offset greenhouse gas emissions from a tropical soil under no-till
Autor(a) principal: | |
---|---|
Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1017/S0014479721000156 http://hdl.handle.net/11449/233601 |
Resumo: | Crop rotations under no-till (NT) have been a strategy to increase soil organic carbon (SOC) and mitigate greenhouse gas (GHG) emissions, enhancing the cropping system efficiency. However, there is still controversy on the role of grasses and legumes, and species diversity and their impacts. This study aimed to assess the GHG emissions, SOC, and Nitrogen (TN) in a soybean production system managed under NT in rotation with different species in the fall-winter and the spring seasons. Main plots during the fall-winter were (1) Triticale (x Triticosecale) and (2) Sunflower (Helianthus annuus). Subplots established in the spring were (a) Sunn hemp (Crotalaria juncea), (b) Sorghum (Sorghum bicolor), (c) Pearl millet (Pennisetum glaucum), plus a (d) Fallow treatment. Soybean was grown every year in the summer, in sub-subplots. The GHG emission was affected according to crop species. In the spring, Sunn hemp emitted more nitrous oxide (N2O) (0.82 kg ha-1) than fallow (0.58 kg ha-1); however, the high C and N inputs by the legume and also other cover crop residues reduced the relative emissions compared with fallow. Growing pearl millet or Sunn hemp as a spring cover crop increases SOC by 7% on average compared with fallow. The N2O emission of Sunn hemp accounted for only 0.28% of the total N accumulated in the legume residues, notably lower than IPCC estimates. In the fall-winter, Triticale increased SOC by 7%, decreased CO2 emission by 18%, and emitted 20% lower GHG to produce the same soybean yield compared with sunflower. Soybean rotation with triticale in fall-winter and Sunn hemp or pearl millet in spring decreases GHG emissions. Our results indicate that the right choice of species in rotation with soybean under NT increases SOC and may offset GHG emissions from tropical soils. It may be an important tool in mitigating potential global warming. |
id |
UNSP_e5b9717ecba1ec36867d030091b0bae7 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/233601 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Using cover crops to offset greenhouse gas emissions from a tropical soil under no-tillConservation managementcrop rotationNitrous oxideCrop rotations under no-till (NT) have been a strategy to increase soil organic carbon (SOC) and mitigate greenhouse gas (GHG) emissions, enhancing the cropping system efficiency. However, there is still controversy on the role of grasses and legumes, and species diversity and their impacts. This study aimed to assess the GHG emissions, SOC, and Nitrogen (TN) in a soybean production system managed under NT in rotation with different species in the fall-winter and the spring seasons. Main plots during the fall-winter were (1) Triticale (x Triticosecale) and (2) Sunflower (Helianthus annuus). Subplots established in the spring were (a) Sunn hemp (Crotalaria juncea), (b) Sorghum (Sorghum bicolor), (c) Pearl millet (Pennisetum glaucum), plus a (d) Fallow treatment. Soybean was grown every year in the summer, in sub-subplots. The GHG emission was affected according to crop species. In the spring, Sunn hemp emitted more nitrous oxide (N2O) (0.82 kg ha-1) than fallow (0.58 kg ha-1); however, the high C and N inputs by the legume and also other cover crop residues reduced the relative emissions compared with fallow. Growing pearl millet or Sunn hemp as a spring cover crop increases SOC by 7% on average compared with fallow. The N2O emission of Sunn hemp accounted for only 0.28% of the total N accumulated in the legume residues, notably lower than IPCC estimates. In the fall-winter, Triticale increased SOC by 7%, decreased CO2 emission by 18%, and emitted 20% lower GHG to produce the same soybean yield compared with sunflower. Soybean rotation with triticale in fall-winter and Sunn hemp or pearl millet in spring decreases GHG emissions. Our results indicate that the right choice of species in rotation with soybean under NT increases SOC and may offset GHG emissions from tropical soils. It may be an important tool in mitigating potential global warming.São Paulo State University UNESP College of Agricultural Sciences Department of Crop Science, SPFederal University of Paraná UFPR Department of Agronomic Sciences, PRGoiano Federal Institute IF Goiano Department of Agriculture, GOSão Paulo State University UNESP College of Agricultural Sciences Department of Crop Science, SPUniversidade Estadual Paulista (UNESP)Universidade Federal do Paraná (UFPR)IF GoianoRigon, João Paulo Gonsiorkiewicz [UNESP]Calonego, Juliano Carlos [UNESP]Pivetta, Laércio AugustoCastoldi, GustavoRaphael, Juan Piero Antonio [UNESP]Rosolem, Ciro Antônio [UNESP]2022-05-01T09:30:55Z2022-05-01T09:30:55Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1017/S0014479721000156Experimental Agriculture.1469-44410014-4797http://hdl.handle.net/11449/23360110.1017/S00144797210001562-s2.0-85115933667Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengExperimental Agricultureinfo:eu-repo/semantics/openAccess2024-04-30T15:55:37Zoai:repositorio.unesp.br:11449/233601Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:22:05.875065Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Using cover crops to offset greenhouse gas emissions from a tropical soil under no-till |
title |
Using cover crops to offset greenhouse gas emissions from a tropical soil under no-till |
spellingShingle |
Using cover crops to offset greenhouse gas emissions from a tropical soil under no-till Rigon, João Paulo Gonsiorkiewicz [UNESP] Conservation management crop rotation Nitrous oxide |
title_short |
Using cover crops to offset greenhouse gas emissions from a tropical soil under no-till |
title_full |
Using cover crops to offset greenhouse gas emissions from a tropical soil under no-till |
title_fullStr |
Using cover crops to offset greenhouse gas emissions from a tropical soil under no-till |
title_full_unstemmed |
Using cover crops to offset greenhouse gas emissions from a tropical soil under no-till |
title_sort |
Using cover crops to offset greenhouse gas emissions from a tropical soil under no-till |
author |
Rigon, João Paulo Gonsiorkiewicz [UNESP] |
author_facet |
Rigon, João Paulo Gonsiorkiewicz [UNESP] Calonego, Juliano Carlos [UNESP] Pivetta, Laércio Augusto Castoldi, Gustavo Raphael, Juan Piero Antonio [UNESP] Rosolem, Ciro Antônio [UNESP] |
author_role |
author |
author2 |
Calonego, Juliano Carlos [UNESP] Pivetta, Laércio Augusto Castoldi, Gustavo Raphael, Juan Piero Antonio [UNESP] Rosolem, Ciro Antônio [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Universidade Federal do Paraná (UFPR) IF Goiano |
dc.contributor.author.fl_str_mv |
Rigon, João Paulo Gonsiorkiewicz [UNESP] Calonego, Juliano Carlos [UNESP] Pivetta, Laércio Augusto Castoldi, Gustavo Raphael, Juan Piero Antonio [UNESP] Rosolem, Ciro Antônio [UNESP] |
dc.subject.por.fl_str_mv |
Conservation management crop rotation Nitrous oxide |
topic |
Conservation management crop rotation Nitrous oxide |
description |
Crop rotations under no-till (NT) have been a strategy to increase soil organic carbon (SOC) and mitigate greenhouse gas (GHG) emissions, enhancing the cropping system efficiency. However, there is still controversy on the role of grasses and legumes, and species diversity and their impacts. This study aimed to assess the GHG emissions, SOC, and Nitrogen (TN) in a soybean production system managed under NT in rotation with different species in the fall-winter and the spring seasons. Main plots during the fall-winter were (1) Triticale (x Triticosecale) and (2) Sunflower (Helianthus annuus). Subplots established in the spring were (a) Sunn hemp (Crotalaria juncea), (b) Sorghum (Sorghum bicolor), (c) Pearl millet (Pennisetum glaucum), plus a (d) Fallow treatment. Soybean was grown every year in the summer, in sub-subplots. The GHG emission was affected according to crop species. In the spring, Sunn hemp emitted more nitrous oxide (N2O) (0.82 kg ha-1) than fallow (0.58 kg ha-1); however, the high C and N inputs by the legume and also other cover crop residues reduced the relative emissions compared with fallow. Growing pearl millet or Sunn hemp as a spring cover crop increases SOC by 7% on average compared with fallow. The N2O emission of Sunn hemp accounted for only 0.28% of the total N accumulated in the legume residues, notably lower than IPCC estimates. In the fall-winter, Triticale increased SOC by 7%, decreased CO2 emission by 18%, and emitted 20% lower GHG to produce the same soybean yield compared with sunflower. Soybean rotation with triticale in fall-winter and Sunn hemp or pearl millet in spring decreases GHG emissions. Our results indicate that the right choice of species in rotation with soybean under NT increases SOC and may offset GHG emissions from tropical soils. It may be an important tool in mitigating potential global warming. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-01 2022-05-01T09:30:55Z 2022-05-01T09:30:55Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1017/S0014479721000156 Experimental Agriculture. 1469-4441 0014-4797 http://hdl.handle.net/11449/233601 10.1017/S0014479721000156 2-s2.0-85115933667 |
url |
http://dx.doi.org/10.1017/S0014479721000156 http://hdl.handle.net/11449/233601 |
identifier_str_mv |
Experimental Agriculture. 1469-4441 0014-4797 10.1017/S0014479721000156 2-s2.0-85115933667 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Experimental Agriculture |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128502860349440 |