Interference of a weed community in the soybean crop in functions of sowing spacing
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.5935/1806-6690.20170070 http://hdl.handle.net/11449/175128 |
Resumo: | The use of double row spacing on soybean crop is recent and consists of a new soybean production technology in Brazil and worldwide, so weed interference may be different in relation to single crop row. Thus, the objective of this work was to evaluate the weed interference in soybean crop in function of sowing spacing. The experimental design was randomized blocks and treatments were arranged in a factorial (2×16): two spacings, a double row spacing [(0.20 × 0.20 m) × 0.67 m] and a conventional single row spacing (0.45 × 0.45 m) and sixteen periods of weed management, being eight control periods in which soybean was kept free of weeds by increasing periods of 7; 14; 21; 28; 35; 42; 49 and 145 days after emergence and eight coexistence periods, when the crop was maintained in the presence of the weed community for the same periods. The Critical Timing of Weed Removal (CTWR) was lower in the double row spacing, with eight days, compared with single spacing that was of 18 days. The Critical Weed-Free Period (CWFP) was of 36 and 31 days for double and single row spacing, respectively, and the emergence of weeds after this period did not cause damage to the productivity, but the Critical Period of Weed Control (CPWC) was higher in double row spacing (28 days) compared to the single row, which was of 13 days. The spacing in double row had a higher grain yield than the spacing in single row. |
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Interference of a weed community in the soybean crop in functions of sowing spacingCritical PeriodsGlycine maxPhytosociologyWeed CompetitionThe use of double row spacing on soybean crop is recent and consists of a new soybean production technology in Brazil and worldwide, so weed interference may be different in relation to single crop row. Thus, the objective of this work was to evaluate the weed interference in soybean crop in function of sowing spacing. The experimental design was randomized blocks and treatments were arranged in a factorial (2×16): two spacings, a double row spacing [(0.20 × 0.20 m) × 0.67 m] and a conventional single row spacing (0.45 × 0.45 m) and sixteen periods of weed management, being eight control periods in which soybean was kept free of weeds by increasing periods of 7; 14; 21; 28; 35; 42; 49 and 145 days after emergence and eight coexistence periods, when the crop was maintained in the presence of the weed community for the same periods. The Critical Timing of Weed Removal (CTWR) was lower in the double row spacing, with eight days, compared with single spacing that was of 18 days. The Critical Weed-Free Period (CWFP) was of 36 and 31 days for double and single row spacing, respectively, and the emergence of weeds after this period did not cause damage to the productivity, but the Critical Period of Weed Control (CPWC) was higher in double row spacing (28 days) compared to the single row, which was of 13 days. The spacing in double row had a higher grain yield than the spacing in single row.Departamento de Produção Vegetal Área de Matologia Universidade Estadual Paulista 'Júlio de Mesquita Filho' (UNESP) Campus JaboticabalDepartamento de Produção Vegetal Área de Matologia Universidade Estadual Paulista 'Júlio de Mesquita Filho' (UNESP) Campus JaboticabalUniversidade Estadual Paulista (Unesp)Vitorino, Hermeson dos Santos [UNESP]da Silva, Antonio Carlos [UNESP]Gonçalves, Clebson Gomes [UNESP]Martins, Dagoberto [UNESP]2018-12-11T17:14:29Z2018-12-11T17:14:29Z2017-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article605-613application/pdfhttp://dx.doi.org/10.5935/1806-6690.20170070Revista Ciencia Agronomica, v. 48, n. 4, p. 605-613, 2017.1806-66900045-6888http://hdl.handle.net/11449/17512810.5935/1806-6690.20170070S1806-669020170004006052-s2.0-85028750336S1806-66902017000400605.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Ciencia Agronomica0,498info:eu-repo/semantics/openAccess2024-01-15T06:24:11Zoai:repositorio.unesp.br:11449/175128Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-01-15T06:24:11Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Interference of a weed community in the soybean crop in functions of sowing spacing |
title |
Interference of a weed community in the soybean crop in functions of sowing spacing |
spellingShingle |
Interference of a weed community in the soybean crop in functions of sowing spacing Vitorino, Hermeson dos Santos [UNESP] Critical Periods Glycine max Phytosociology Weed Competition |
title_short |
Interference of a weed community in the soybean crop in functions of sowing spacing |
title_full |
Interference of a weed community in the soybean crop in functions of sowing spacing |
title_fullStr |
Interference of a weed community in the soybean crop in functions of sowing spacing |
title_full_unstemmed |
Interference of a weed community in the soybean crop in functions of sowing spacing |
title_sort |
Interference of a weed community in the soybean crop in functions of sowing spacing |
author |
Vitorino, Hermeson dos Santos [UNESP] |
author_facet |
Vitorino, Hermeson dos Santos [UNESP] da Silva, Antonio Carlos [UNESP] Gonçalves, Clebson Gomes [UNESP] Martins, Dagoberto [UNESP] |
author_role |
author |
author2 |
da Silva, Antonio Carlos [UNESP] Gonçalves, Clebson Gomes [UNESP] Martins, Dagoberto [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Vitorino, Hermeson dos Santos [UNESP] da Silva, Antonio Carlos [UNESP] Gonçalves, Clebson Gomes [UNESP] Martins, Dagoberto [UNESP] |
dc.subject.por.fl_str_mv |
Critical Periods Glycine max Phytosociology Weed Competition |
topic |
Critical Periods Glycine max Phytosociology Weed Competition |
description |
The use of double row spacing on soybean crop is recent and consists of a new soybean production technology in Brazil and worldwide, so weed interference may be different in relation to single crop row. Thus, the objective of this work was to evaluate the weed interference in soybean crop in function of sowing spacing. The experimental design was randomized blocks and treatments were arranged in a factorial (2×16): two spacings, a double row spacing [(0.20 × 0.20 m) × 0.67 m] and a conventional single row spacing (0.45 × 0.45 m) and sixteen periods of weed management, being eight control periods in which soybean was kept free of weeds by increasing periods of 7; 14; 21; 28; 35; 42; 49 and 145 days after emergence and eight coexistence periods, when the crop was maintained in the presence of the weed community for the same periods. The Critical Timing of Weed Removal (CTWR) was lower in the double row spacing, with eight days, compared with single spacing that was of 18 days. The Critical Weed-Free Period (CWFP) was of 36 and 31 days for double and single row spacing, respectively, and the emergence of weeds after this period did not cause damage to the productivity, but the Critical Period of Weed Control (CPWC) was higher in double row spacing (28 days) compared to the single row, which was of 13 days. The spacing in double row had a higher grain yield than the spacing in single row. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-01 2018-12-11T17:14:29Z 2018-12-11T17:14:29Z |
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 |
http://dx.doi.org/10.5935/1806-6690.20170070 Revista Ciencia Agronomica, v. 48, n. 4, p. 605-613, 2017. 1806-6690 0045-6888 http://hdl.handle.net/11449/175128 10.5935/1806-6690.20170070 S1806-66902017000400605 2-s2.0-85028750336 S1806-66902017000400605.pdf |
url |
http://dx.doi.org/10.5935/1806-6690.20170070 http://hdl.handle.net/11449/175128 |
identifier_str_mv |
Revista Ciencia Agronomica, v. 48, n. 4, p. 605-613, 2017. 1806-6690 0045-6888 10.5935/1806-6690.20170070 S1806-66902017000400605 2-s2.0-85028750336 S1806-66902017000400605.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Revista Ciencia Agronomica 0,498 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
605-613 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1797790304679493632 |