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Registro Completo |
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Biblioteca(s): |
Embrapa Roraima. |
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Data corrente: |
27/05/2021 |
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Data da última atualização: |
18/06/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MELO, A. K. P.; ALBUQUERQUE, J. A. A.; SIQUEIRA, R. H. S.; SILVA, E. E. da; MEDEIROS, R. D. de; SOUZA, K. T. S.; SOUZA, L. T.; GONÇALVES, A. C. M.; SOARES, M. B. B. |
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Afiliação: |
EDMILSON EVANGELISTA DA SILVA, CPAF-RR; ROBERTO DANTAS DE MEDEIROS, CPAF-RR. |
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Título: |
Occurrence of noxious weeds under different soil management systems. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Applied Ecology and Environmental Research, v. 19, n. 3, p. 2061-2072, 2021. |
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Idioma: |
Inglês |
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Conteúdo: |
The aim of this work was to identify weed species in areas under different soil management systems. The research was carried out in the Brazilian Agricultural Research Corporation experimental area, in the 2017/2018 harvest, in the city of Boa Vista, Roraima State, Brazil. The experimental design was randomized blocks and the treatments included of five soil management systems (native vegetation, minimum tillage, no-tillage, conventional tillage and conventional tillage with crop rotation). Weed collection, identification, counting and drying were performed and then the phytosociological indices (Relative density, relative frequency, relative abundance, importance value index, relative importance value index and dry mass) were calculated. Variance analysis with means compared by Tukey test (P <0.05), group analysis by hierarchical and non-hierarchical method, and principal component analysis were performed. Correlation coefficients of the variables were estimated. No and minimum tillage systems had the lowest weed rates per square meter. The botanical families Poaceae, Fabaceae and Rubiaceae are the most representative in the studied systems. Concerning relative frequency, the species Cyperus flavus stood out in all treatments other than native vegetation. |
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Palavras-Chave: |
Cover plant; Native vegetati; Phytosociological parameters; Spontaneous plants. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/223505/1/MELO-et-.-2021.pdf
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Marc: |
LEADER 02081naa a2200265 a 4500
001 2132072
005 2021-06-18
008 2021 bl uuuu u00u1 u #d
100 1 $aMELO, A. K. P.
245 $aOccurrence of noxious weeds under different soil management systems.$h[electronic resource]
260 $c2021
520 $aThe aim of this work was to identify weed species in areas under different soil management systems. The research was carried out in the Brazilian Agricultural Research Corporation experimental area, in the 2017/2018 harvest, in the city of Boa Vista, Roraima State, Brazil. The experimental design was randomized blocks and the treatments included of five soil management systems (native vegetation, minimum tillage, no-tillage, conventional tillage and conventional tillage with crop rotation). Weed collection, identification, counting and drying were performed and then the phytosociological indices (Relative density, relative frequency, relative abundance, importance value index, relative importance value index and dry mass) were calculated. Variance analysis with means compared by Tukey test (P <0.05), group analysis by hierarchical and non-hierarchical method, and principal component analysis were performed. Correlation coefficients of the variables were estimated. No and minimum tillage systems had the lowest weed rates per square meter. The botanical families Poaceae, Fabaceae and Rubiaceae are the most representative in the studied systems. Concerning relative frequency, the species Cyperus flavus stood out in all treatments other than native vegetation.
653 $aCover plant
653 $aNative vegetati
653 $aPhytosociological parameters
653 $aSpontaneous plants
700 1 $aALBUQUERQUE, J. A. A.
700 1 $aSIQUEIRA, R. H. S.
700 1 $aSILVA, E. E. da
700 1 $aMEDEIROS, R. D. de
700 1 $aSOUZA, K. T. S.
700 1 $aSOUZA, L. T.
700 1 $aGONÇALVES, A. C. M.
700 1 $aSOARES, M. B. B.
773 $tApplied Ecology and Environmental Research$gv. 19, n. 3, p. 2061-2072, 2021.
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Registro original: |
Embrapa Roraima (CPAF-RR) |
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Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
14/03/2011 |
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Data da última atualização: |
20/07/2017 |
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Tipo da produção científica: |
Monitoramento/Zoneamento |
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Autoria: |
LIMA, M. A. de; LIGO, M. A. V.; PESSOA, M. C. P. Y.; NEVES, M. C.; CARVALHO, E. C. de. |
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Afiliação: |
MAGDA APARECIDA DE LIMA, CNPMA; MARCOS ANTONIO VIEIRA LIGO, CNPMA; MARIA CONCEICAO PERES YOUNG PESSOA, CNPMA; MARCOS CORREA NEVES, CNPMA; Elton Cesar de Carvalho, Bolsista - CNPq. |
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Título: |
Emissões de gases de efeito estufa na queima de resíduos agrícolas. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Brasília, DF: Ministério da Ciência e Tecnologia: Embrapa, 2010. |
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Páginas: |
65 p. |
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Idioma: |
Português |
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Notas: |
Segundo Inventário Brasileiro de Emissões e Remoções Antrópicas de Gases de Efeito Estufa - Relatórios de referência. |
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Palavras-Chave: |
Monitoramento ambiental. |
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Thesagro: |
Efeito Estufa; Mudança Climática. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/127165/1/brasil-mcti-queima-residuos-agricolas.pdf
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Marc: |
LEADER 00746nam a2200205 a 4500
001 1880679
005 2017-07-20
008 2010 bl uuuu 00u1 u #d
100 1 $aLIMA, M. A. de
245 $aEmissões de gases de efeito estufa na queima de resíduos agrícolas.$h[electronic resource]
260 $aBrasília, DF: Ministério da Ciência e Tecnologia: Embrapa$c2010
300 $a65 p.
500 $aSegundo Inventário Brasileiro de Emissões e Remoções Antrópicas de Gases de Efeito Estufa - Relatórios de referência.
650 $aEfeito Estufa
650 $aMudança Climática
653 $aMonitoramento ambiental
700 1 $aLIGO, M. A. V.
700 1 $aPESSOA, M. C. P. Y.
700 1 $aNEVES, M. C.
700 1 $aCARVALHO, E. C. de
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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