Soil physical properties under a 'Tanzânia' grass pasture fertilized with mineral nitrogen or intercropped with stylosanthes

Detalhes bibliográficos
Autor(a) principal: Ferreira, Camila Jorge Bernabé
Data de Publicação: 2018
Outros Autores: Tormena, Cássio Antonio, Cecato, Ulysses, Franco, Hélio Henrique Soares, Moreira, Wagner Henrique, Galbeiro, Sandra, Ribeiro, Ossival Lolato
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.
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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
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