Soil physical properties under a 'Tanzânia' grass pasture fertilized with mineral nitrogen or intercropped with stylosanthes
Autor(a) principal: | |
---|---|
Data de Publicação: | 2018 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/25358 |
Resumo: | The objective of this work was to evaluate the physical properties of a soil with a 'Tanzânia' grass (Megathyrsus maximus) pasture fertilized with mineral nitrogen or intercropped with the legume 'Campo Grande' (Stylosanthes spp.), and subjected to continuous grazing and variable stocking rate, in a three-year chronosequence. The treatments were: 'Tanzânia' grass and Stylosanthes; and 'Tanzânia' grass fertilized with 75, 150, and 225 kg ha-1 N per year. The experiment was carried out in an Oxisol, in a randomized complete block design with three replicates, in split plots divided according to time (first, second, and third experimental years). The following soil properties were assessed annually: soil bulk density, porosity in the soil macropore domain, soil water and air storage capacity, and soil penetration resistance. After three years, the highest animal stocking rate due to increased forage yield did not affect the soil physical conditions. The intercrop of 'Tanzânia' grass with the legume shows values of soil water and air storage capacity close to the ideal ones (0.66 and 0.34, respectively). After the second experimental year, there is a decrease in the penetration resistance values, which are inferior to the critical limit of 2,500 kPa. The intercropping of 'Tanzânia' grass with stylosanthes 'Campo Grande' can be a remarkable alternative for the maintenance and improvement of soil physical conditions. |
id |
EMBRAPA-4_0a1b4209094d6587292c3ccca8a1f4ba |
---|---|
oai_identifier_str |
oai:ojs.seer.sct.embrapa.br:article/25358 |
network_acronym_str |
EMBRAPA-4 |
network_name_str |
Pesquisa Agropecuária Brasileira (Online) |
repository_id_str |
|
spelling |
Soil physical properties under a 'Tanzânia' grass pasture fertilized with mineral nitrogen or intercropped with stylosanthesPropriedades físicas de solo sob pastagem de capim-tanzânia adubada com nitrogênio mineral ou consorciada com estilosantesPanicum maximum; Stylosanthes; soil penetration resistance; stocking ratePanicum maximum; Stylosanthes; resistência do solo à penetração; taxa de lotação animalThe objective of this work was to evaluate the physical properties of a soil with a 'Tanzânia' grass (Megathyrsus maximus) pasture fertilized with mineral nitrogen or intercropped with the legume 'Campo Grande' (Stylosanthes spp.), and subjected to continuous grazing and variable stocking rate, in a three-year chronosequence. The treatments were: 'Tanzânia' grass and Stylosanthes; and 'Tanzânia' grass fertilized with 75, 150, and 225 kg ha-1 N per year. The experiment was carried out in an Oxisol, in a randomized complete block design with three replicates, in split plots divided according to time (first, second, and third experimental years). The following soil properties were assessed annually: soil bulk density, porosity in the soil macropore domain, soil water and air storage capacity, and soil penetration resistance. After three years, the highest animal stocking rate due to increased forage yield did not affect the soil physical conditions. The intercrop of 'Tanzânia' grass with the legume shows values of soil water and air storage capacity close to the ideal ones (0.66 and 0.34, respectively). After the second experimental year, there is a decrease in the penetration resistance values, which are inferior to the critical limit of 2,500 kPa. The intercropping of 'Tanzânia' grass with stylosanthes 'Campo Grande' can be a remarkable alternative for the maintenance and improvement of soil physical conditions.O objetivo deste trabalho foi avaliar as propriedades físicas de um solo com pastagem de capim-tanzânia (Megathyrsus maximus) fertilizado com nitrogênio mineral ou consorciado com a leguminosa estilosantes 'Campo Grande' (Stylosanthes spp.), submetido a pastejo contínuo e à taxa de lotação variável, em uma cronossequência de três anos. Os tratamentos foram: capim-tanzânia e estilosantes; e capim-tanzânia adubado com 75, 150 e 225 kg ha-1 de N por ano. O experimento foi realizado em Latossolo Vermelho distrófico, em blocos ao acaso com três repetições, com parcelas subdivididas no tempo (primeiro, segundo e terceiro anos experimentais). Foram avaliadas, anualmente, as seguintes propriedades do solo: densidade do solo, porosidade no domínio dos macroporos, capacidade de armazenamento de água e ar do solo e resistência do solo à penetração. Após três anos, a maior taxa de lotação animal, em razão do aumento da produção de forragem, não afetou as condições físicas do solo. O consórcio de pastagem de capim-tanzânia com a leguminosa apresenta valores de capacidade de armazenamento de água e ar do solo próximos aos ideais (0,66 e 0,34, respectivamente). Após o segundo ano experimental, ocorre decréscimo dos valores de resistência do solo à penetração, que ficam abaixo do limite crítico de 2.500 kPa. O consórcio de capim-tanzânia com o estilosantes 'Campo Grande' pode ser uma alternativa interessante para a manutenção e o melhoramento das condições físicas do solo.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Ferreira, Camila Jorge BernabéTormena, Cássio AntonioCecato, UlyssesFranco, Hélio Henrique SoaresMoreira, Wagner HenriqueGalbeiro, SandraRibeiro, Ossival Lolato2018-06-19info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/25358Pesquisa Agropecuaria Brasileira; v.53, n.4, abr. 2018; 478-486Pesquisa Agropecuária Brasileira; v.53, n.4, abr. 2018; 478-4861678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/25358/14170https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/25358/17114https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/25358/17759https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/25358/17760Direitos autorais 2018 Pesquisa Agropecuária Brasileirainfo:eu-repo/semantics/openAccess2018-06-19T21:27:21Zoai:ojs.seer.sct.embrapa.br:article/25358Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2018-06-19T21:27:21Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Soil physical properties under a 'Tanzânia' grass pasture fertilized with mineral nitrogen or intercropped with stylosanthes Propriedades físicas de solo sob pastagem de capim-tanzânia adubada com nitrogênio mineral ou consorciada com estilosantes |
title |
Soil physical properties under a 'Tanzânia' grass pasture fertilized with mineral nitrogen or intercropped with stylosanthes |
spellingShingle |
Soil physical properties under a 'Tanzânia' grass pasture fertilized with mineral nitrogen or intercropped with stylosanthes Ferreira, Camila Jorge Bernabé Panicum maximum; Stylosanthes; soil penetration resistance; stocking rate Panicum maximum; Stylosanthes; resistência do solo à penetração; taxa de lotação animal |
title_short |
Soil physical properties under a 'Tanzânia' grass pasture fertilized with mineral nitrogen or intercropped with stylosanthes |
title_full |
Soil physical properties under a 'Tanzânia' grass pasture fertilized with mineral nitrogen or intercropped with stylosanthes |
title_fullStr |
Soil physical properties under a 'Tanzânia' grass pasture fertilized with mineral nitrogen or intercropped with stylosanthes |
title_full_unstemmed |
Soil physical properties under a 'Tanzânia' grass pasture fertilized with mineral nitrogen or intercropped with stylosanthes |
title_sort |
Soil physical properties under a 'Tanzânia' grass pasture fertilized with mineral nitrogen or intercropped with stylosanthes |
author |
Ferreira, Camila Jorge Bernabé |
author_facet |
Ferreira, Camila Jorge Bernabé Tormena, Cássio Antonio Cecato, Ulysses Franco, Hélio Henrique Soares Moreira, Wagner Henrique Galbeiro, Sandra Ribeiro, Ossival Lolato |
author_role |
author |
author2 |
Tormena, Cássio Antonio Cecato, Ulysses Franco, Hélio Henrique Soares Moreira, Wagner Henrique Galbeiro, Sandra Ribeiro, Ossival Lolato |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) |
dc.contributor.author.fl_str_mv |
Ferreira, Camila Jorge Bernabé Tormena, Cássio Antonio Cecato, Ulysses Franco, Hélio Henrique Soares Moreira, Wagner Henrique Galbeiro, Sandra Ribeiro, Ossival Lolato |
dc.subject.por.fl_str_mv |
Panicum maximum; Stylosanthes; soil penetration resistance; stocking rate Panicum maximum; Stylosanthes; resistência do solo à penetração; taxa de lotação animal |
topic |
Panicum maximum; Stylosanthes; soil penetration resistance; stocking rate Panicum maximum; Stylosanthes; resistência do solo à penetração; taxa de lotação animal |
description |
The objective of this work was to evaluate the physical properties of a soil with a 'Tanzânia' grass (Megathyrsus maximus) pasture fertilized with mineral nitrogen or intercropped with the legume 'Campo Grande' (Stylosanthes spp.), and subjected to continuous grazing and variable stocking rate, in a three-year chronosequence. The treatments were: 'Tanzânia' grass and Stylosanthes; and 'Tanzânia' grass fertilized with 75, 150, and 225 kg ha-1 N per year. The experiment was carried out in an Oxisol, in a randomized complete block design with three replicates, in split plots divided according to time (first, second, and third experimental years). The following soil properties were assessed annually: soil bulk density, porosity in the soil macropore domain, soil water and air storage capacity, and soil penetration resistance. After three years, the highest animal stocking rate due to increased forage yield did not affect the soil physical conditions. The intercrop of 'Tanzânia' grass with the legume shows values of soil water and air storage capacity close to the ideal ones (0.66 and 0.34, respectively). After the second experimental year, there is a decrease in the penetration resistance values, which are inferior to the critical limit of 2,500 kPa. The intercropping of 'Tanzânia' grass with stylosanthes 'Campo Grande' can be a remarkable alternative for the maintenance and improvement of soil physical conditions. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-06-19 |
dc.type.none.fl_str_mv |
|
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://seer.sct.embrapa.br/index.php/pab/article/view/25358 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/25358 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/25358/14170 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/25358/17114 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/25358/17759 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/25358/17760 |
dc.rights.driver.fl_str_mv |
Direitos autorais 2018 Pesquisa Agropecuária Brasileira info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Direitos autorais 2018 Pesquisa Agropecuária Brasileira |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.53, n.4, abr. 2018; 478-486 Pesquisa Agropecuária Brasileira; v.53, n.4, abr. 2018; 478-486 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
_version_ |
1793416653671759872 |