Soil carbon and nitrogen stocks, light organic matter, and remaining phosphorus under a crop-livestock integration system
Autor(a) principal: | |
---|---|
Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/26622 |
Resumo: | Crop-livestock integration (CLI) is a management system that has been developed for a variety of soil and climatic conditions, which combined with the no-tillage system (NTS), has many variations in Brazil, particularly regarding grazing intensity. The objective of this study was to assess the effects of different grazing intensities and soybean (Glycine max L.) crops on carbon (Cst) and nitrogen (Nst) stocks, light organic matter (LOM), root content of the LOM (RLOM), and remaining phosphorus (Prem) in an Oxisol under CLI. The treatments consisted of three different heights (0.25 m [P25], 0.35 m [P35], and 0.45 m [P45]) of pasture grown in a CLI system. Two control areas, an area without grazing (AWG) and a native vegetation area of the Cerrado biome (NCA), which were adjacent to the experimental area, were compared with the cultivated areas. Soil samples were collected from 0.00-0.05, 0.05-0.10, and 0.10-0.20 m beneath each area in a completely randomized design with six replications. Soil characteristics were evaluated in the post-pasture cycle period (PP) and the post-soybean crop period (PC), which coincided with the wet and dry seasons, respectively. The NCA had more LOM in the 0.00-0.05 m layer during the PC and the 0.05-0.10 m layer during both the PP and the PC, C in the LOM in the 0.00-0.20 m layer during the PP and the PC, N in the LOM in the 0.00-0.05 m layer in the PC and the 0.05-0.10 m layer in the PP and the PC, and Cst in the 0.00-0.20 m layer in the PP and the PC than the cultivated areas, but a lower soil density (SD) and Prem in the 0.00-0.20 m layer during both the PP and the PC. Treatment P35 had more Nst in the PC and RLOM in the PP than the other cultivated treatments and the AWG. The absence of grazing in the AWG decreased the SD from the PP to the PC, while the treatments with different grazing intensities had similar values throughout this period. Our results suggest that production could be intensified under light and moderate grazing intensities in the CLI system. |
id |
UEL-11_1b8db261201a1f1edc0058c666af1d5c |
---|---|
oai_identifier_str |
oai:ojs.pkp.sfu.ca:article/26622 |
network_acronym_str |
UEL-11 |
network_name_str |
Semina. Ciências Agrárias (Online) |
repository_id_str |
|
spelling |
Soil carbon and nitrogen stocks, light organic matter, and remaining phosphorus under a crop-livestock integration systemEstoques de carbono e nitrogênio, matéria orgânica leve e fósforo remanescente do solo sob sistema de integração lavoura-pecuáriaNo-tillage systemGrazing intensitySoil organic matterCerrado biome.Sistema de plantio diretoIntensidade de pastejoMatéria orgânica do soloCerrado.Crop-livestock integration (CLI) is a management system that has been developed for a variety of soil and climatic conditions, which combined with the no-tillage system (NTS), has many variations in Brazil, particularly regarding grazing intensity. The objective of this study was to assess the effects of different grazing intensities and soybean (Glycine max L.) crops on carbon (Cst) and nitrogen (Nst) stocks, light organic matter (LOM), root content of the LOM (RLOM), and remaining phosphorus (Prem) in an Oxisol under CLI. The treatments consisted of three different heights (0.25 m [P25], 0.35 m [P35], and 0.45 m [P45]) of pasture grown in a CLI system. Two control areas, an area without grazing (AWG) and a native vegetation area of the Cerrado biome (NCA), which were adjacent to the experimental area, were compared with the cultivated areas. Soil samples were collected from 0.00-0.05, 0.05-0.10, and 0.10-0.20 m beneath each area in a completely randomized design with six replications. Soil characteristics were evaluated in the post-pasture cycle period (PP) and the post-soybean crop period (PC), which coincided with the wet and dry seasons, respectively. The NCA had more LOM in the 0.00-0.05 m layer during the PC and the 0.05-0.10 m layer during both the PP and the PC, C in the LOM in the 0.00-0.20 m layer during the PP and the PC, N in the LOM in the 0.00-0.05 m layer in the PC and the 0.05-0.10 m layer in the PP and the PC, and Cst in the 0.00-0.20 m layer in the PP and the PC than the cultivated areas, but a lower soil density (SD) and Prem in the 0.00-0.20 m layer during both the PP and the PC. Treatment P35 had more Nst in the PC and RLOM in the PP than the other cultivated treatments and the AWG. The absence of grazing in the AWG decreased the SD from the PP to the PC, while the treatments with different grazing intensities had similar values throughout this period. Our results suggest that production could be intensified under light and moderate grazing intensities in the CLI system.A integração lavoura-pecuária (ILP), combinada ao sistema plantio direto (SPD), é um sistema de manejo que tem sido desenvolvido para diversas condições edafoclimáticas, com muitas variações no Brasil, principalmente quanto a intensidade de pastejo. O objetivo deste estudo foi avaliar os efeitos de diferentes intensidades de pastejo e cultivo da soja (Glycine max L.) nos estoques de carbono (EstC) e nitrogênio (EstN), matéria orgânica leve (MOL), conteúdo de raízes na MOL (RMOL) e fósforo remanescente (Prem) em um Latossolo sob ILP. Os tratamentos consistiram em três diferentes alturas de manejo do pasto na ILP (0,25 m [P25], 0,35 m [P35], e 0,45 m [P45]). Duas áreas de controle, uma sem pastejo (SP) e uma área de vegetação nativa de cerrado (cerradão) (CE), que estiveram adjacentes ao experimento, foram comparadas com as áreas cultivadas. Em cada área as amostras foram coletadas nas camadas de 0,0-0,05; 0,05-0,10 e 0,10-0,20 m em delineamento inteiramente aleatorizado com 6 repetições. Os atributos do solo foram avaliados pós-ciclo de pastejo (PP) e pós-lavoura de soja (PL), que coincidiram com as estações seca e chuvosa, respectivamente. O CE apresentou maiores conteúdos de MOL na camada 0,0-0,05 m na PL e na camada 0,05-0,10 m em ambas épocas PP e PL, C na MOL na camada 0,0-0,020 m durante o PP e a PL, N na MOL na camada 0,0-0,05 m na PL e na camada 0,05-0,10 m durante o PP e a PL, EstC na camada de 0,0-0,020 m em ambos PP e PL em relação às áreas cultivadas, entretanto menores valores de densidade do solo (Ds) e Prem na camada de 0,0-0,020 m durante o PP e a PL. O tratamento (P35) incrementou EstN na PL e RMOL no PP em relação aos outros cultivos P25, P45 e SP. A ausência de pastejo da área SP reduziu a Ds do PP para a PL, enquanto os tratamentos com diferentes intensidades de pastejo mantiveram estabilizados seus valores neste período. Os nossos resultados sugerem que a produção pode ser intensificada sob intensidades baixa e moderada de pastejo na ILP avaliada.UEL2017-08-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa Empírica de Campoapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/2662210.5433/1679-0359.2017v38n4p1825Semina: Ciências Agrárias; Vol. 38 No. 4 (2017); 1825-1840Semina: Ciências Agrárias; v. 38 n. 4 (2017); 1825-18401679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/26622/21361Copyright (c) 2017 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessBieluczyk, WanderleiPereira, Marcos GervasioGuareschi, Roni FernandesBonetti, João de AndradeSilva, Geanderson Nascimento daSilva Neto, Eduardo Carvalho da2022-10-24T12:18:08Zoai:ojs.pkp.sfu.ca:article/26622Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-24T12:18:08Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Soil carbon and nitrogen stocks, light organic matter, and remaining phosphorus under a crop-livestock integration system Estoques de carbono e nitrogênio, matéria orgânica leve e fósforo remanescente do solo sob sistema de integração lavoura-pecuária |
title |
Soil carbon and nitrogen stocks, light organic matter, and remaining phosphorus under a crop-livestock integration system |
spellingShingle |
Soil carbon and nitrogen stocks, light organic matter, and remaining phosphorus under a crop-livestock integration system Bieluczyk, Wanderlei No-tillage system Grazing intensity Soil organic matter Cerrado biome. Sistema de plantio direto Intensidade de pastejo Matéria orgânica do solo Cerrado. |
title_short |
Soil carbon and nitrogen stocks, light organic matter, and remaining phosphorus under a crop-livestock integration system |
title_full |
Soil carbon and nitrogen stocks, light organic matter, and remaining phosphorus under a crop-livestock integration system |
title_fullStr |
Soil carbon and nitrogen stocks, light organic matter, and remaining phosphorus under a crop-livestock integration system |
title_full_unstemmed |
Soil carbon and nitrogen stocks, light organic matter, and remaining phosphorus under a crop-livestock integration system |
title_sort |
Soil carbon and nitrogen stocks, light organic matter, and remaining phosphorus under a crop-livestock integration system |
author |
Bieluczyk, Wanderlei |
author_facet |
Bieluczyk, Wanderlei Pereira, Marcos Gervasio Guareschi, Roni Fernandes Bonetti, João de Andrade Silva, Geanderson Nascimento da Silva Neto, Eduardo Carvalho da |
author_role |
author |
author2 |
Pereira, Marcos Gervasio Guareschi, Roni Fernandes Bonetti, João de Andrade Silva, Geanderson Nascimento da Silva Neto, Eduardo Carvalho da |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Bieluczyk, Wanderlei Pereira, Marcos Gervasio Guareschi, Roni Fernandes Bonetti, João de Andrade Silva, Geanderson Nascimento da Silva Neto, Eduardo Carvalho da |
dc.subject.por.fl_str_mv |
No-tillage system Grazing intensity Soil organic matter Cerrado biome. Sistema de plantio direto Intensidade de pastejo Matéria orgânica do solo Cerrado. |
topic |
No-tillage system Grazing intensity Soil organic matter Cerrado biome. Sistema de plantio direto Intensidade de pastejo Matéria orgânica do solo Cerrado. |
description |
Crop-livestock integration (CLI) is a management system that has been developed for a variety of soil and climatic conditions, which combined with the no-tillage system (NTS), has many variations in Brazil, particularly regarding grazing intensity. The objective of this study was to assess the effects of different grazing intensities and soybean (Glycine max L.) crops on carbon (Cst) and nitrogen (Nst) stocks, light organic matter (LOM), root content of the LOM (RLOM), and remaining phosphorus (Prem) in an Oxisol under CLI. The treatments consisted of three different heights (0.25 m [P25], 0.35 m [P35], and 0.45 m [P45]) of pasture grown in a CLI system. Two control areas, an area without grazing (AWG) and a native vegetation area of the Cerrado biome (NCA), which were adjacent to the experimental area, were compared with the cultivated areas. Soil samples were collected from 0.00-0.05, 0.05-0.10, and 0.10-0.20 m beneath each area in a completely randomized design with six replications. Soil characteristics were evaluated in the post-pasture cycle period (PP) and the post-soybean crop period (PC), which coincided with the wet and dry seasons, respectively. The NCA had more LOM in the 0.00-0.05 m layer during the PC and the 0.05-0.10 m layer during both the PP and the PC, C in the LOM in the 0.00-0.20 m layer during the PP and the PC, N in the LOM in the 0.00-0.05 m layer in the PC and the 0.05-0.10 m layer in the PP and the PC, and Cst in the 0.00-0.20 m layer in the PP and the PC than the cultivated areas, but a lower soil density (SD) and Prem in the 0.00-0.20 m layer during both the PP and the PC. Treatment P35 had more Nst in the PC and RLOM in the PP than the other cultivated treatments and the AWG. The absence of grazing in the AWG decreased the SD from the PP to the PC, while the treatments with different grazing intensities had similar values throughout this period. Our results suggest that production could be intensified under light and moderate grazing intensities in the CLI system. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-08-04 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pesquisa Empírica de Campo |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/26622 10.5433/1679-0359.2017v38n4p1825 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/26622 |
identifier_str_mv |
10.5433/1679-0359.2017v38n4p1825 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/26622/21361 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2017 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2017 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 38 No. 4 (2017); 1825-1840 Semina: Ciências Agrárias; v. 38 n. 4 (2017); 1825-1840 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306076464611328 |