ORGANIC SYSTEMS SUSTAINABILITY USING COVER CROPS IN RICE CULTIVATION THROUGH SOIL PHYSICAL ATTRIBUTES CHANGES

Detalhes bibliográficos
Autor(a) principal: de Aguiar, Renata Alves
Data de Publicação: 2010
Outros Autores: Moreira, José Aloísio Alves, Stone, Luís Fernando, Bernardes, Tatiely Gomes, de Jesus, Roberta Paula
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/4843
Resumo: To evaluate the influence of cover crops on Oxisol physical attributes, in an organic production system with conventional tillage, a study was conducted at Embrapa Arroz e Feijão, Santo Antônio de Goiás, Goiás State, Brazil, for two years, in a succession cover crops-rice, in which cover crops were sown in the autumn/winter and the subsequent crop, rice cultivar Aimoré, was sown in the summer. Five cover crops were used: Velvet bean (Mucuna aterrima), Sunn hemp (Crotalaria juncea), Pigeon pea (Cajanus cajan), Broom sorghum (Sorghum technicum), and spontaneous vegetation fallowing. A randomized blocks design with four replications was used. In the second year of experimentation (2005), soil samples were collected from plots and from a close forest, at depths of 0.00-0.10 m, 0.10-0.20 m, and 0.20-0.30 m, to determine organic matter content (SOC), soil physical properties, S index, and soil aggregation. The cover crops management was carried out at the flowering stage and its biomass incorporated into soil profile. For total porosity, microporosity and bulk density, there were no significant differences among depths, for different cover crops. For S index, for all treatments at the 0.00-0.10 m layer depth, values between 0.020 and 0.035, characterizing intermediate soil physical quality, were found. The percentage of aggregates with a diameter larger than 2 mm and the weighted average diameter of aggregates were higher at the 0.10-0.20 m layer depth. SOC decreased with depth, independently of cover crops. KEY-WORDS: Cover crops; soil tillage; porosity; aggregate stability.
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spelling ORGANIC SYSTEMS SUSTAINABILITY USING COVER CROPS IN RICE CULTIVATION THROUGH SOIL PHYSICAL ATTRIBUTES CHANGESSUSTENTABILIDADE DE SISTEMAS ORGÂNICOS COM PLANTAS DE COBERTURA NA CULTURA DO ARROZ, POR MEIO DE ALTERAÇÕES FÍSICAS DO SOLOCover cropssoil tillageporosityaggregate stabilityPlantas de coberturapreparo do soloporosidadeestabilidade de agregados To evaluate the influence of cover crops on Oxisol physical attributes, in an organic production system with conventional tillage, a study was conducted at Embrapa Arroz e Feijão, Santo Antônio de Goiás, Goiás State, Brazil, for two years, in a succession cover crops-rice, in which cover crops were sown in the autumn/winter and the subsequent crop, rice cultivar Aimoré, was sown in the summer. Five cover crops were used: Velvet bean (Mucuna aterrima), Sunn hemp (Crotalaria juncea), Pigeon pea (Cajanus cajan), Broom sorghum (Sorghum technicum), and spontaneous vegetation fallowing. A randomized blocks design with four replications was used. In the second year of experimentation (2005), soil samples were collected from plots and from a close forest, at depths of 0.00-0.10 m, 0.10-0.20 m, and 0.20-0.30 m, to determine organic matter content (SOC), soil physical properties, S index, and soil aggregation. The cover crops management was carried out at the flowering stage and its biomass incorporated into soil profile. For total porosity, microporosity and bulk density, there were no significant differences among depths, for different cover crops. For S index, for all treatments at the 0.00-0.10 m layer depth, values between 0.020 and 0.035, characterizing intermediate soil physical quality, were found. The percentage of aggregates with a diameter larger than 2 mm and the weighted average diameter of aggregates were higher at the 0.10-0.20 m layer depth. SOC decreased with depth, independently of cover crops. KEY-WORDS: Cover crops; soil tillage; porosity; aggregate stability. O presente trabalho teve como objetivo avaliar o efeito de diferentes plantas de cobertura de solo sobre os atributos físicos de um Latossolo Vermelho distrófico, em sistema de produção orgânico, com preparo convencional. O trabalho foi conduzido, por dois anos, na área experimental da Embrapa Arroz e Feijão, em Santo Antônio de Goiás, GO, em um sistema de sucessão de plantas de cobertura-arroz, no qual as plantas de cobertura eram semeadas no outono/inverno e a cultura subsequente, o arroz, cultivar Aimoré, semeada no verão. Foram utilizadas as seguintes plantas de cobertura: mucuna preta (Mucuna aterrima), crotalária (Crotalaria juncea), guandu-anão (Cajanus cajan), sorgo vassoura (Sorghum technicum) e pousio com vegetação espontânea. O delineamento experimental foi de blocos ao acaso, com quatro repetições. Foram coletadas, no segundo ano de experimentação (2005), amostras de solo, nas parcelas e em mata próxima, nas profundidades de 0,00-0,10 m; 0,10-0,20 m; e 0,20-0,30 m, para determinação do teor de matéria orgânica (MO), atributos físicos, índice S e estado de agregação do solo. O manejo das plantas de cobertura de solo foi efetuado por ocasião do florescimento. A biomassa foi incorporada ao perfil por meio de aração. Para a porosidade total, microporosidade e densidade do solo, não foram observadas diferenças significativas entre as profundidades, para as diferentes plantas de cobertura do solo. Para o índice S, observou-se, para todos os tratamentos, na camada 0-10 m de profundidade, valores entre 0,020 e 0,035, que caracterizam solos com qualidade física intermediária. A porcentagem de agregados com diâmetro maior que 2 mm e o diâmetro médio ponderado dos agregados foram maiores, independentemente de cobertura de solo, na camada 0,10-0,20 m de profundidade. Também, independentemente da cobertura de solo, o conteúdo de matéria orgânica decresceu com a profundidade do solo. PALAVRAS-CHAVE: Plantas de cobertura; preparo do solo; porosidade; estabilidade de agregados.Escola de Agronomia - Universidade Federal de Goiás2010-06-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa Experimental;application/pdfhttps://revistas.ufg.br/pat/article/view/4843Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 40, n. 2, Apr./Jun. 2010; 142-149Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 40, n. 2, abr./jun. 2010; 142-149Pesquisa Agropecuária Tropical; v. 40, n. 2, abr./jun. 2010; 142-1491983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/pat/article/view/4843/6889Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)info:eu-repo/semantics/openAccessde Aguiar, Renata AlvesMoreira, José Aloísio AlvesStone, Luís FernandoBernardes, Tatiely Gomesde Jesus, Roberta Paula2020-07-09T17:22:29Zoai:ojs.revistas.ufg.br:article/4843Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:55:39.949205Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv ORGANIC SYSTEMS SUSTAINABILITY USING COVER CROPS IN RICE CULTIVATION THROUGH SOIL PHYSICAL ATTRIBUTES CHANGES
SUSTENTABILIDADE DE SISTEMAS ORGÂNICOS COM PLANTAS DE COBERTURA NA CULTURA DO ARROZ, POR MEIO DE ALTERAÇÕES FÍSICAS DO SOLO
title ORGANIC SYSTEMS SUSTAINABILITY USING COVER CROPS IN RICE CULTIVATION THROUGH SOIL PHYSICAL ATTRIBUTES CHANGES
spellingShingle ORGANIC SYSTEMS SUSTAINABILITY USING COVER CROPS IN RICE CULTIVATION THROUGH SOIL PHYSICAL ATTRIBUTES CHANGES
de Aguiar, Renata Alves
Cover crops
soil tillage
porosity
aggregate stability
Plantas de cobertura
preparo do solo
porosidade
estabilidade de agregados
title_short ORGANIC SYSTEMS SUSTAINABILITY USING COVER CROPS IN RICE CULTIVATION THROUGH SOIL PHYSICAL ATTRIBUTES CHANGES
title_full ORGANIC SYSTEMS SUSTAINABILITY USING COVER CROPS IN RICE CULTIVATION THROUGH SOIL PHYSICAL ATTRIBUTES CHANGES
title_fullStr ORGANIC SYSTEMS SUSTAINABILITY USING COVER CROPS IN RICE CULTIVATION THROUGH SOIL PHYSICAL ATTRIBUTES CHANGES
title_full_unstemmed ORGANIC SYSTEMS SUSTAINABILITY USING COVER CROPS IN RICE CULTIVATION THROUGH SOIL PHYSICAL ATTRIBUTES CHANGES
title_sort ORGANIC SYSTEMS SUSTAINABILITY USING COVER CROPS IN RICE CULTIVATION THROUGH SOIL PHYSICAL ATTRIBUTES CHANGES
author de Aguiar, Renata Alves
author_facet de Aguiar, Renata Alves
Moreira, José Aloísio Alves
Stone, Luís Fernando
Bernardes, Tatiely Gomes
de Jesus, Roberta Paula
author_role author
author2 Moreira, José Aloísio Alves
Stone, Luís Fernando
Bernardes, Tatiely Gomes
de Jesus, Roberta Paula
author2_role author
author
author
author
dc.contributor.author.fl_str_mv de Aguiar, Renata Alves
Moreira, José Aloísio Alves
Stone, Luís Fernando
Bernardes, Tatiely Gomes
de Jesus, Roberta Paula
dc.subject.por.fl_str_mv Cover crops
soil tillage
porosity
aggregate stability
Plantas de cobertura
preparo do solo
porosidade
estabilidade de agregados
topic Cover crops
soil tillage
porosity
aggregate stability
Plantas de cobertura
preparo do solo
porosidade
estabilidade de agregados
description To evaluate the influence of cover crops on Oxisol physical attributes, in an organic production system with conventional tillage, a study was conducted at Embrapa Arroz e Feijão, Santo Antônio de Goiás, Goiás State, Brazil, for two years, in a succession cover crops-rice, in which cover crops were sown in the autumn/winter and the subsequent crop, rice cultivar Aimoré, was sown in the summer. Five cover crops were used: Velvet bean (Mucuna aterrima), Sunn hemp (Crotalaria juncea), Pigeon pea (Cajanus cajan), Broom sorghum (Sorghum technicum), and spontaneous vegetation fallowing. A randomized blocks design with four replications was used. In the second year of experimentation (2005), soil samples were collected from plots and from a close forest, at depths of 0.00-0.10 m, 0.10-0.20 m, and 0.20-0.30 m, to determine organic matter content (SOC), soil physical properties, S index, and soil aggregation. The cover crops management was carried out at the flowering stage and its biomass incorporated into soil profile. For total porosity, microporosity and bulk density, there were no significant differences among depths, for different cover crops. For S index, for all treatments at the 0.00-0.10 m layer depth, values between 0.020 and 0.035, characterizing intermediate soil physical quality, were found. The percentage of aggregates with a diameter larger than 2 mm and the weighted average diameter of aggregates were higher at the 0.10-0.20 m layer depth. SOC decreased with depth, independently of cover crops. KEY-WORDS: Cover crops; soil tillage; porosity; aggregate stability.
publishDate 2010
dc.date.none.fl_str_mv 2010-06-29
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Pesquisa Experimental;
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/4843
url https://revistas.ufg.br/pat/article/view/4843
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/4843/6889
dc.rights.driver.fl_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 40, n. 2, Apr./Jun. 2010; 142-149
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 40, n. 2, abr./jun. 2010; 142-149
Pesquisa Agropecuária Tropical; v. 40, n. 2, abr./jun. 2010; 142-149
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
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