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Registro Completo |
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Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
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Data corrente: |
24/01/2017 |
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Data da última atualização: |
19/07/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTOS, W. F.; PROCOPIO, S. de O.; SILVA, A. G.; FERNANDES, M. F. |
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Afiliação: |
WEVERTON FERREIRA SANTOS; SERGIO DE OLIVEIRA PROCOPIO, CPATC; ALESSANDRO GUERRA DA SILVA; MARCELO FERREIRA FERNANDES, CPATC. |
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Título: |
Factors associated with weed occurrence in Southwest region of Goiás. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
African Journal of Agricultural Research, v. 11, n. 52, p. 5178-5191, dez. 2016. |
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ISSN: |
1991-637X |
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Idioma: |
Português |
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Conteúdo: |
After the introduction of Roundup Ready® technology, there were changes in community composition of weeds in the Southwest of Goiás. In this sense, this study aimed atevaluating weed distribution in different cropping systems in this region. Thus, phytosociological survey was conducted in three different periods. Studies were conducted on thirty-five areas derived from combined soybean crops resistant to glyphosate and conventional soybean, maize, sorghum, millet or fallow in succession. The number of individuals of weeds, dry biomass of soil surface and edaphoclimatic data was obtained in order to describe the variables responses of floristic composition. The factors associated to the total occurrence of species were evaluated and five species difficult to control (Cenchrus echinatus, Alternanthera tenella, Chamaesyce hirta, Euphorbia heterophylla e Glycine max) in regression analysis on tree were selected. A total of 3,219 individuals among 79 species were recorded. Regarding total occurrence of species period desiccation of main crop pre-planting (44.80 pl. 5 m2) and on sites that showed pH>5,37 (51.20 pl. 5 m2) had higher infestations. Voluntary soybean was found in off-season, preferably with high sand content. Species of hard control, tolerant or resistant to herbicides were diagnosed in areas study. |
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Palavras-Chave: |
Herbicide; Soybean; Weed. |
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Thesagro: |
Erva daninha; Herbicida; Soja. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/153814/1/Factors-associated-with-weed-occurrence-in-Southwest-African-Journal.pdf
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Marc: |
LEADER 01998naa a2200241 a 4500
001 2061570
005 2017-07-19
008 2016 bl uuuu u00u1 u #d
022 $a1991-637X
100 1 $aSANTOS, W. F.
245 $aFactors associated with weed occurrence in Southwest region of Goiás.$h[electronic resource]
260 $c2016
520 $aAfter the introduction of Roundup Ready® technology, there were changes in community composition of weeds in the Southwest of Goiás. In this sense, this study aimed atevaluating weed distribution in different cropping systems in this region. Thus, phytosociological survey was conducted in three different periods. Studies were conducted on thirty-five areas derived from combined soybean crops resistant to glyphosate and conventional soybean, maize, sorghum, millet or fallow in succession. The number of individuals of weeds, dry biomass of soil surface and edaphoclimatic data was obtained in order to describe the variables responses of floristic composition. The factors associated to the total occurrence of species were evaluated and five species difficult to control (Cenchrus echinatus, Alternanthera tenella, Chamaesyce hirta, Euphorbia heterophylla e Glycine max) in regression analysis on tree were selected. A total of 3,219 individuals among 79 species were recorded. Regarding total occurrence of species period desiccation of main crop pre-planting (44.80 pl. 5 m2) and on sites that showed pH>5,37 (51.20 pl. 5 m2) had higher infestations. Voluntary soybean was found in off-season, preferably with high sand content. Species of hard control, tolerant or resistant to herbicides were diagnosed in areas study.
650 $aErva daninha
650 $aHerbicida
650 $aSoja
653 $aHerbicide
653 $aSoybean
653 $aWeed
700 1 $aPROCOPIO, S. de O.
700 1 $aSILVA, A. G.
700 1 $aFERNANDES, M. F.
773 $tAfrican Journal of Agricultural Research$gv. 11, n. 52, p. 5178-5191, dez. 2016.
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