Carbon stock and humification index of organic matter affected by sugarcane straw and soil management
Autor(a) principal: | |
---|---|
Data de Publicação: | 2013 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Scientia Agrícola (Online) |
Texto Completo: | https://www.revistas.usp.br/sa/article/view/78513 |
Resumo: | The maintenance of sugarcane (Saccharum spp.) straw on a soil surface increases the soil carbon (C) stocks, but at lower rates than expected. This fact is probably associated with the soil management adopted during sugarcane replanting. This study aimed to assess the impact on soil C stocks and the humification index of soil organic matter (SOM) of adopting no-tillage (NT) and conventional tillage (CT) for sugarcane replanting. A greater C content and stock was observed in the NT area, but only in the 0-5 cm soil layer (p < 0.05). Greater soil C stock (0-60 cm) was found in soil under NT, when compared to CT and the baseline. While C stock of 116 Mg ha-1 was found in the baseline area, in areas under CT and NT systems the values ranged from 120 to 127 Mg ha-1. Carbon retention rates of 0.67 and 1.63 Mg C ha-1 year-1 were obtained in areas under CT and NT, respectively. Laser-Induced Fluorescence Spectroscopy showed that CT makes the soil surface (0-20 cm) more homogeneous than the NT system due to the effect of soil disturbance, and that the SOM humification index (H LIF) is larger in CT compared to NT conditions. In contrast, NT had a gradient of increasing H LIF, showing that the entry of labile organic material such as straw is also responsible for the accumulation of C in this system. The maintenance of straw on the soil surface and the adoption of NT during sugarcane planting are strategies that can increase soil C sequestration in the Brazilian sugarcane sector. |
id |
USP-18_06f9a7bf38d03c8c5ec7ce257be2b709 |
---|---|
oai_identifier_str |
oai:revistas.usp.br:article/78513 |
network_acronym_str |
USP-18 |
network_name_str |
Scientia Agrícola (Online) |
repository_id_str |
|
spelling |
Carbon stock and humification index of organic matter affected by sugarcane straw and soil management The maintenance of sugarcane (Saccharum spp.) straw on a soil surface increases the soil carbon (C) stocks, but at lower rates than expected. This fact is probably associated with the soil management adopted during sugarcane replanting. This study aimed to assess the impact on soil C stocks and the humification index of soil organic matter (SOM) of adopting no-tillage (NT) and conventional tillage (CT) for sugarcane replanting. A greater C content and stock was observed in the NT area, but only in the 0-5 cm soil layer (p < 0.05). Greater soil C stock (0-60 cm) was found in soil under NT, when compared to CT and the baseline. While C stock of 116 Mg ha-1 was found in the baseline area, in areas under CT and NT systems the values ranged from 120 to 127 Mg ha-1. Carbon retention rates of 0.67 and 1.63 Mg C ha-1 year-1 were obtained in areas under CT and NT, respectively. Laser-Induced Fluorescence Spectroscopy showed that CT makes the soil surface (0-20 cm) more homogeneous than the NT system due to the effect of soil disturbance, and that the SOM humification index (H LIF) is larger in CT compared to NT conditions. In contrast, NT had a gradient of increasing H LIF, showing that the entry of labile organic material such as straw is also responsible for the accumulation of C in this system. The maintenance of straw on the soil surface and the adoption of NT during sugarcane planting are strategies that can increase soil C sequestration in the Brazilian sugarcane sector. Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz2013-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/sa/article/view/7851310.1590/S0103-90162013000500006Scientia Agricola; v. 70 n. 5 (2013); 321-326Scientia Agricola; Vol. 70 Núm. 5 (2013); 321-326Scientia Agricola; Vol. 70 No. 5 (2013); 321-3261678-992X0103-9016reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/sa/article/view/78513/82568Copyright (c) 2015 Scientia Agricolainfo:eu-repo/semantics/openAccessSegnini, AlineCarvalho, João Luís NunesBolonhezi, DenizartMilori, Débora Marcondes Bastos PereiraSilva, Wilson Tadeu Lopes daSimões, Marcelo LuizCantarella, HeitorMaria, Isabella C. deMartin-Neto, Ladislau2014-04-02T19:49:28Zoai:revistas.usp.br:article/78513Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2014-04-02T19:49:28Scientia Agrícola (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Carbon stock and humification index of organic matter affected by sugarcane straw and soil management |
title |
Carbon stock and humification index of organic matter affected by sugarcane straw and soil management |
spellingShingle |
Carbon stock and humification index of organic matter affected by sugarcane straw and soil management Segnini, Aline |
title_short |
Carbon stock and humification index of organic matter affected by sugarcane straw and soil management |
title_full |
Carbon stock and humification index of organic matter affected by sugarcane straw and soil management |
title_fullStr |
Carbon stock and humification index of organic matter affected by sugarcane straw and soil management |
title_full_unstemmed |
Carbon stock and humification index of organic matter affected by sugarcane straw and soil management |
title_sort |
Carbon stock and humification index of organic matter affected by sugarcane straw and soil management |
author |
Segnini, Aline |
author_facet |
Segnini, Aline Carvalho, João Luís Nunes Bolonhezi, Denizart Milori, Débora Marcondes Bastos Pereira Silva, Wilson Tadeu Lopes da Simões, Marcelo Luiz Cantarella, Heitor Maria, Isabella C. de Martin-Neto, Ladislau |
author_role |
author |
author2 |
Carvalho, João Luís Nunes Bolonhezi, Denizart Milori, Débora Marcondes Bastos Pereira Silva, Wilson Tadeu Lopes da Simões, Marcelo Luiz Cantarella, Heitor Maria, Isabella C. de Martin-Neto, Ladislau |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Segnini, Aline Carvalho, João Luís Nunes Bolonhezi, Denizart Milori, Débora Marcondes Bastos Pereira Silva, Wilson Tadeu Lopes da Simões, Marcelo Luiz Cantarella, Heitor Maria, Isabella C. de Martin-Neto, Ladislau |
description |
The maintenance of sugarcane (Saccharum spp.) straw on a soil surface increases the soil carbon (C) stocks, but at lower rates than expected. This fact is probably associated with the soil management adopted during sugarcane replanting. This study aimed to assess the impact on soil C stocks and the humification index of soil organic matter (SOM) of adopting no-tillage (NT) and conventional tillage (CT) for sugarcane replanting. A greater C content and stock was observed in the NT area, but only in the 0-5 cm soil layer (p < 0.05). Greater soil C stock (0-60 cm) was found in soil under NT, when compared to CT and the baseline. While C stock of 116 Mg ha-1 was found in the baseline area, in areas under CT and NT systems the values ranged from 120 to 127 Mg ha-1. Carbon retention rates of 0.67 and 1.63 Mg C ha-1 year-1 were obtained in areas under CT and NT, respectively. Laser-Induced Fluorescence Spectroscopy showed that CT makes the soil surface (0-20 cm) more homogeneous than the NT system due to the effect of soil disturbance, and that the SOM humification index (H LIF) is larger in CT compared to NT conditions. In contrast, NT had a gradient of increasing H LIF, showing that the entry of labile organic material such as straw is also responsible for the accumulation of C in this system. The maintenance of straw on the soil surface and the adoption of NT during sugarcane planting are strategies that can increase soil C sequestration in the Brazilian sugarcane sector. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-10-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.revistas.usp.br/sa/article/view/78513 10.1590/S0103-90162013000500006 |
url |
https://www.revistas.usp.br/sa/article/view/78513 |
identifier_str_mv |
10.1590/S0103-90162013000500006 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/sa/article/view/78513/82568 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2015 Scientia Agricola info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2015 Scientia Agricola |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz |
publisher.none.fl_str_mv |
Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz |
dc.source.none.fl_str_mv |
Scientia Agricola; v. 70 n. 5 (2013); 321-326 Scientia Agricola; Vol. 70 Núm. 5 (2013); 321-326 Scientia Agricola; Vol. 70 No. 5 (2013); 321-326 1678-992X 0103-9016 reponame:Scientia Agrícola (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Scientia Agrícola (Online) |
collection |
Scientia Agrícola (Online) |
repository.name.fl_str_mv |
Scientia Agrícola (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
scientia@usp.br||alleoni@usp.br |
_version_ |
1800222791988936704 |