Agregação de um latossolo vermelho-amarelo submetido a métodos de controle de plantas invasoras na cultura do café
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/45905 |
Resumo: | Weed management in the coffee crop has a pronounced effect on soil physical quality, affecting its structural stability, among other properties. The aim of the present study was to assess the state of aggregation of primary particles of a Latossolo Vermelho-Amarelo (LVA) [Oxisol] planted with coffee when subjected to various weed control methods. The weed control methods evaluated were biological control with Arachis pintoi L. (a forage crop close to the peanut) and Brachiaria decumbens; mechanical control with a disk harrow, brush cutter, brush shredder, and manual weeding; chemical control using herbicides in post- and pre-emergence; and no weed control between rows. A split-plot randomized block experimental design was used in a 9 × 2 factorial arrangement, composed of nine treatments and two sampling depths (0-15 and 15-30 cm), with three replicates. The stability of aggregates in water (expressed by geometric mean diameter), the dispersive potential of the clay fraction (estimated by the water dispersible clay content and the flocculation index), and the soil organic matter content were determined. The properties evaluated were affected by the different weed control methods; however, this was not dependent on the soil layers sampled. Continued use of a harrow and pre-emergence herbicide for weed control in the coffee crop decreased aggregation of soil particles, as seen through the lower values of geometric mean diameter. Biological weed control methods maintained a better state of soil particle aggregation. The state of soil particle aggregation showed no association with the dispersibility of the clay fraction in the soil. |
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Agregação de um latossolo vermelho-amarelo submetido a métodos de controle de plantas invasoras na cultura do caféAggregation of an oxisol subjected to weed control methods in the coffee cropErvas daninhas - ControleDispersão da argilaEstabilidade de agregadosSolos - QualidadeWeeds - ControlClay dispersionAggregate stabilitySoils - QualityWeed management in the coffee crop has a pronounced effect on soil physical quality, affecting its structural stability, among other properties. The aim of the present study was to assess the state of aggregation of primary particles of a Latossolo Vermelho-Amarelo (LVA) [Oxisol] planted with coffee when subjected to various weed control methods. The weed control methods evaluated were biological control with Arachis pintoi L. (a forage crop close to the peanut) and Brachiaria decumbens; mechanical control with a disk harrow, brush cutter, brush shredder, and manual weeding; chemical control using herbicides in post- and pre-emergence; and no weed control between rows. A split-plot randomized block experimental design was used in a 9 × 2 factorial arrangement, composed of nine treatments and two sampling depths (0-15 and 15-30 cm), with three replicates. The stability of aggregates in water (expressed by geometric mean diameter), the dispersive potential of the clay fraction (estimated by the water dispersible clay content and the flocculation index), and the soil organic matter content were determined. The properties evaluated were affected by the different weed control methods; however, this was not dependent on the soil layers sampled. Continued use of a harrow and pre-emergence herbicide for weed control in the coffee crop decreased aggregation of soil particles, as seen through the lower values of geometric mean diameter. Biological weed control methods maintained a better state of soil particle aggregation. The state of soil particle aggregation showed no association with the dispersibility of the clay fraction in the soil.O controle de plantas daninhas em cultivos de cafeeiros tem expressivo efeito na qualidade física do solo, influenciando, entre outros atributos, na sua estabilidade estrutural. Neste trabalho, objetivou-se avaliar o estado de agregação das partículas primárias de um Latossolo Vermelho-Amarelo (LVA) cultivado com cafeeiros, quando submetido a diversos métodos de controle de plantas invasoras. Os métodos de controle de plantas invasoras avaliados foram: manutenção da entrelinha coberta com amendoim-forrageiro (Arachis pintoi L.) e capim-braquiária (Brachiaria decumbens); controle mecânico com grade, roçadora, trincha e capina manual; controle químico com herbicidas de pós e pré-emergência; e ausência de controle, mantendo a entrelinha sem capina. O delineamento experimental foi em blocos casualizados em um fatorial 9 × 2 em parcelas subdivididas, sendo nove métodos de controle e duas profundidades do solo (0-15 e 15-30 cm), com três repetições. Determinaram-se a estabilidade dos agregados em água, expressa pelo diâmetro médio geométrico, o potencial dispersivo da fração argila, estimado pelos teores de argila dispersa em água e do índice de floculação, além dos teores de matéria orgânica do solo. Os atributos avaliados foram influenciados pelos diferentes métodos de controle, contudo essa influência não foi dependente da camada de solo amostrada. A utilização contínua de grade e herbicida de pré-emergência no controle de invasoras na cultura do café diminuiu a agregação das partículas do solo, confirmado pelos menores valores de diâmetro médio geométrico. Os métodos biológicos de controle das invasoras mantiveram melhor estado de agregação das partículas do solo. O estado de agregação das partículas não mostrou-se associado à dispersibilidade da fração argila do solo.Sociedade Brasileira de Ciência do Solo2020-12-16T17:58:18Z2020-12-16T17:58:18Z2014info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfSIQUEIRA, R. H. da S. et al. Agregação de um latossolo vermelho-amarelo submetido a métodos de controle de plantas invasoras na cultura do café. Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 38, n. 4, p. 1128-1134, 2014.http://repositorio.ufla.br/jspui/handle/1/45905Revista Brasileira de Ciência do Soloreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessSiqueira, Raphael Henrique da SilvaFerreira, Mozart MartinsAlcântara, Elifas Nunes deCarvalho, Raphael Comanducci da Silvapor2020-12-16T17:58:19Zoai:localhost:1/45905Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2020-12-16T17:58:19Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Agregação de um latossolo vermelho-amarelo submetido a métodos de controle de plantas invasoras na cultura do café Aggregation of an oxisol subjected to weed control methods in the coffee crop |
title |
Agregação de um latossolo vermelho-amarelo submetido a métodos de controle de plantas invasoras na cultura do café |
spellingShingle |
Agregação de um latossolo vermelho-amarelo submetido a métodos de controle de plantas invasoras na cultura do café Siqueira, Raphael Henrique da Silva Ervas daninhas - Controle Dispersão da argila Estabilidade de agregados Solos - Qualidade Weeds - Control Clay dispersion Aggregate stability Soils - Quality |
title_short |
Agregação de um latossolo vermelho-amarelo submetido a métodos de controle de plantas invasoras na cultura do café |
title_full |
Agregação de um latossolo vermelho-amarelo submetido a métodos de controle de plantas invasoras na cultura do café |
title_fullStr |
Agregação de um latossolo vermelho-amarelo submetido a métodos de controle de plantas invasoras na cultura do café |
title_full_unstemmed |
Agregação de um latossolo vermelho-amarelo submetido a métodos de controle de plantas invasoras na cultura do café |
title_sort |
Agregação de um latossolo vermelho-amarelo submetido a métodos de controle de plantas invasoras na cultura do café |
author |
Siqueira, Raphael Henrique da Silva |
author_facet |
Siqueira, Raphael Henrique da Silva Ferreira, Mozart Martins Alcântara, Elifas Nunes de Carvalho, Raphael Comanducci da Silva |
author_role |
author |
author2 |
Ferreira, Mozart Martins Alcântara, Elifas Nunes de Carvalho, Raphael Comanducci da Silva |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Siqueira, Raphael Henrique da Silva Ferreira, Mozart Martins Alcântara, Elifas Nunes de Carvalho, Raphael Comanducci da Silva |
dc.subject.por.fl_str_mv |
Ervas daninhas - Controle Dispersão da argila Estabilidade de agregados Solos - Qualidade Weeds - Control Clay dispersion Aggregate stability Soils - Quality |
topic |
Ervas daninhas - Controle Dispersão da argila Estabilidade de agregados Solos - Qualidade Weeds - Control Clay dispersion Aggregate stability Soils - Quality |
description |
Weed management in the coffee crop has a pronounced effect on soil physical quality, affecting its structural stability, among other properties. The aim of the present study was to assess the state of aggregation of primary particles of a Latossolo Vermelho-Amarelo (LVA) [Oxisol] planted with coffee when subjected to various weed control methods. The weed control methods evaluated were biological control with Arachis pintoi L. (a forage crop close to the peanut) and Brachiaria decumbens; mechanical control with a disk harrow, brush cutter, brush shredder, and manual weeding; chemical control using herbicides in post- and pre-emergence; and no weed control between rows. A split-plot randomized block experimental design was used in a 9 × 2 factorial arrangement, composed of nine treatments and two sampling depths (0-15 and 15-30 cm), with three replicates. The stability of aggregates in water (expressed by geometric mean diameter), the dispersive potential of the clay fraction (estimated by the water dispersible clay content and the flocculation index), and the soil organic matter content were determined. The properties evaluated were affected by the different weed control methods; however, this was not dependent on the soil layers sampled. Continued use of a harrow and pre-emergence herbicide for weed control in the coffee crop decreased aggregation of soil particles, as seen through the lower values of geometric mean diameter. Biological weed control methods maintained a better state of soil particle aggregation. The state of soil particle aggregation showed no association with the dispersibility of the clay fraction in the soil. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014 2020-12-16T17:58:18Z 2020-12-16T17:58:18Z |
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 |
SIQUEIRA, R. H. da S. et al. Agregação de um latossolo vermelho-amarelo submetido a métodos de controle de plantas invasoras na cultura do café. Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 38, n. 4, p. 1128-1134, 2014. http://repositorio.ufla.br/jspui/handle/1/45905 |
identifier_str_mv |
SIQUEIRA, R. H. da S. et al. Agregação de um latossolo vermelho-amarelo submetido a métodos de controle de plantas invasoras na cultura do café. Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 38, n. 4, p. 1128-1134, 2014. |
url |
http://repositorio.ufla.br/jspui/handle/1/45905 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial 4.0 International http://creativecommons.org/licenses/by-nc/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial 4.0 International 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 |
Sociedade Brasileira de Ciência do Solo |
publisher.none.fl_str_mv |
Sociedade Brasileira de Ciência do Solo |
dc.source.none.fl_str_mv |
Revista Brasileira de Ciência do Solo reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
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1807835167781289984 |