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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
03/09/2007 |
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Data da última atualização: |
13/02/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ORTIZ-CEBALLOS, A. I.; PEÑA-CABRIALES, J. J.; FRAGOSO, C.; BROWN, G. G. |
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Afiliação: |
Angel I. Ortiz-Ceballos, Universidad Veracruzana - Laboratorio de Biotecnología y Ecología Aplicada; Juan J. Peña-Cabriales, CINVESTAV - Departamento de Biotecnología y Bioquímica; Carlos Fragoso, Instituto de Ecologia - Departamento de Biologia de Suelos; George G. Brown, Embrapa Florestas. |
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Título: |
Mycorrhizal colonization and nitrogen uptake by maize: combined effect of tropical earthworms and velvetbean mulch. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Biology and Fertility of Soils, v. 44, p. 181-186, Oct. 2007. |
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DOI: |
10.1007/s00374-007-0193-y |
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Idioma: |
Inglês |
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Notas: |
Publicado online. |
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Conteúdo: |
Earthworms and mulch can have positive or negative effects on mycorrhizae (fungus-roots) and N uptake by plants. In the present experiment, maize plants were grown under greenhouse conditions with or without tropical earthworms (Balanteodrilus pearsei) and mulch of velvetbean (Mucuna pruriens var. utilis). The formation of vesicles and hyphae of arbuscular-mycorrhizal (AM) fungi in roots and N uptake by maize plants was measured at harvest. The addition of earthworms and velvetbean reduced AM root colonization. Earthworms had no effect on plant root or shoot biomass. In the absence of velvetbean, earthworms reduced AM colonization, but when velvetbean was present, this effect disappeared. The addition of velvetbean mulch, on the other hand, had an effect on plant biomass (above- and belowground) and a positive effect on AM fungal colonization of roots in presence of worms, but a negative effect when worms were absent. When both M. pruriens and B. pearsei were added, shoot and root biomass and N concentrations increased. Vesicle formation was related to velvetbean mulch decomposition as well as the higher N concentration in maize roots. Management of mulch–earthworm interactions may be of value, particularly in low-input and organic agricultural systems, and deserves further investigation. |
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Thesagro: |
Micorriza; Minhoca; Nitrogênio. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01997naa a2200217 a 4500
001 1313354
005 2015-02-13
008 2007 bl uuuu u00u1 u #d
024 7 $a10.1007/s00374-007-0193-y$2DOI
100 1 $aORTIZ-CEBALLOS, A. I.
245 $aMycorrhizal colonization and nitrogen uptake by maize$bcombined effect of tropical earthworms and velvetbean mulch.$h[electronic resource]
260 $c2007
500 $aPublicado online.
520 $aEarthworms and mulch can have positive or negative effects on mycorrhizae (fungus-roots) and N uptake by plants. In the present experiment, maize plants were grown under greenhouse conditions with or without tropical earthworms (Balanteodrilus pearsei) and mulch of velvetbean (Mucuna pruriens var. utilis). The formation of vesicles and hyphae of arbuscular-mycorrhizal (AM) fungi in roots and N uptake by maize plants was measured at harvest. The addition of earthworms and velvetbean reduced AM root colonization. Earthworms had no effect on plant root or shoot biomass. In the absence of velvetbean, earthworms reduced AM colonization, but when velvetbean was present, this effect disappeared. The addition of velvetbean mulch, on the other hand, had an effect on plant biomass (above- and belowground) and a positive effect on AM fungal colonization of roots in presence of worms, but a negative effect when worms were absent. When both M. pruriens and B. pearsei were added, shoot and root biomass and N concentrations increased. Vesicle formation was related to velvetbean mulch decomposition as well as the higher N concentration in maize roots. Management of mulch–earthworm interactions may be of value, particularly in low-input and organic agricultural systems, and deserves further investigation.
650 $aMicorriza
650 $aMinhoca
650 $aNitrogênio
700 1 $aPEÑA-CABRIALES, J. J.
700 1 $aFRAGOSO, C.
700 1 $aBROWN, G. G.
773 $tBiology and Fertility of Soils$gv. 44, p. 181-186, Oct. 2007.
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