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Registro Completo |
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Biblioteca(s): |
Embrapa Pesca e Aquicultura. |
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Data corrente: |
20/11/2020 |
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Data da última atualização: |
20/11/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUZA, L. F. N.; OLIVEIRA, S. M.; ALMEIDA, R. E. M.; PIEROZAN JUNIOR, C.; BAPTISTELLA, J. L. C.; FAVARIN, J. L. |
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Afiliação: |
LUCAS FREITAS NOGUEIRA SOUZA, ESALQ; SILAS MACIEL DE OLIVEIRA, ESALQ; RODRIGO ESTEVAM MUNHOZ DE ALMEIDA, CNPASA; CLOVIS PIEROZAN JUNIOR, ESALQ; JOAO L. C. BAPTISTELLA, ESALQ; JOSE LAERCIO FAVARIN, ESALQ. |
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Título: |
Post-emergence nicosulfuron application enhanced leaf-stem ratio in maize-intercropped with Urochloa species after shading and sunlight re-exposure. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Australian Journal of Crop Science, v. 14, n. 8, p. 1342-1347, 2020. |
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ISSN: |
1835-2707 |
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DOI: |
10.21475/ajcs.20.14.08.p2632 |
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Idioma: |
Inglês |
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Conteúdo: |
Low rates of nicosulfuron used in post-emergence provide an advantage to maize during the coexistence of the crops, when maize is intercropped with Urochloa grasses. Nonetheless, the effect of this practice on the morphology of these grasses is not known, neither how it affects forage growth after the coexistence period nor when the grass is re-exposed to full sunlight. The aim of this study was to determine biomass and leaf-stem ratio of Urochloa hybrid cv. Mulatto II (CIAT 36087), Urochloa brizantha (Hochst. ex A. Rich.) and Urochloa ruziziensis (Germ. & Evrard) after the development in a shade simulated environment promoted by maize in intercrop systems. The treatments consisted of three brachiaria species with two herbicides managements. Evaluations occurred at 0, 30 and 60 days after the sunlight re-exposure (DASR). Nicosulfuron application and Urochloa species did not affect biomass yield. However, herbicide increased leaf-stem ratio of the species between 25% at 0 DARS to 62% at 30 DARS on old tillers (tillers that grew under shade). The biomass yield, as well the leaf-stem ratio of the new tillers was not affected. Among the species, the greater ratio of leaves in the plant biomass was recorded for Urochloa brizantha (Hochst. ex A. Rich.) and Urochloa hybrid cv. Mulatto II (CIAT 36087). Nicosulfuron use in post-emergence enhanced the leaf-stem ratio of Urochloa grasses after sunlight re-exposure and a reliable alternative to improve forage quality in intercrop systems. MenosLow rates of nicosulfuron used in post-emergence provide an advantage to maize during the coexistence of the crops, when maize is intercropped with Urochloa grasses. Nonetheless, the effect of this practice on the morphology of these grasses is not known, neither how it affects forage growth after the coexistence period nor when the grass is re-exposed to full sunlight. The aim of this study was to determine biomass and leaf-stem ratio of Urochloa hybrid cv. Mulatto II (CIAT 36087), Urochloa brizantha (Hochst. ex A. Rich.) and Urochloa ruziziensis (Germ. & Evrard) after the development in a shade simulated environment promoted by maize in intercrop systems. The treatments consisted of three brachiaria species with two herbicides managements. Evaluations occurred at 0, 30 and 60 days after the sunlight re-exposure (DASR). Nicosulfuron application and Urochloa species did not affect biomass yield. However, herbicide increased leaf-stem ratio of the species between 25% at 0 DARS to 62% at 30 DARS on old tillers (tillers that grew under shade). The biomass yield, as well the leaf-stem ratio of the new tillers was not affected. Among the species, the greater ratio of leaves in the plant biomass was recorded for Urochloa brizantha (Hochst. ex A. Rich.) and Urochloa hybrid cv. Mulatto II (CIAT 36087). Nicosulfuron use in post-emergence enhanced the leaf-stem ratio of Urochloa grasses after sunlight re-exposure and a reliable alternative to improve forage quality in intercrop system... Mostrar Tudo |
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Thesagro: |
Capim Urochloa; Herbicida; Leguminosa Forrageira; Pastagem Consorciada. |
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Thesaurus Nal: |
Forage quality; Herbicides; Intercropping; Livestock; Nicosulfuron. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://www.alice.cnptia.embrapa.br/alice/bitstream/doc/1126847/1/CNPASA-2020-ajcs.pdf
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Marc: |
LEADER 02488naa a2200313 a 4500
001 2126847
005 2020-11-20
008 2020 bl uuuu u00u1 u #d
022 $a1835-2707
024 7 $a10.21475/ajcs.20.14.08.p2632$2DOI
100 1 $aSOUZA, L. F. N.
245 $aPost-emergence nicosulfuron application enhanced leaf-stem ratio in maize-intercropped with Urochloa species after shading and sunlight re-exposure.$h[electronic resource]
260 $c2020
520 $aLow rates of nicosulfuron used in post-emergence provide an advantage to maize during the coexistence of the crops, when maize is intercropped with Urochloa grasses. Nonetheless, the effect of this practice on the morphology of these grasses is not known, neither how it affects forage growth after the coexistence period nor when the grass is re-exposed to full sunlight. The aim of this study was to determine biomass and leaf-stem ratio of Urochloa hybrid cv. Mulatto II (CIAT 36087), Urochloa brizantha (Hochst. ex A. Rich.) and Urochloa ruziziensis (Germ. & Evrard) after the development in a shade simulated environment promoted by maize in intercrop systems. The treatments consisted of three brachiaria species with two herbicides managements. Evaluations occurred at 0, 30 and 60 days after the sunlight re-exposure (DASR). Nicosulfuron application and Urochloa species did not affect biomass yield. However, herbicide increased leaf-stem ratio of the species between 25% at 0 DARS to 62% at 30 DARS on old tillers (tillers that grew under shade). The biomass yield, as well the leaf-stem ratio of the new tillers was not affected. Among the species, the greater ratio of leaves in the plant biomass was recorded for Urochloa brizantha (Hochst. ex A. Rich.) and Urochloa hybrid cv. Mulatto II (CIAT 36087). Nicosulfuron use in post-emergence enhanced the leaf-stem ratio of Urochloa grasses after sunlight re-exposure and a reliable alternative to improve forage quality in intercrop systems.
650 $aForage quality
650 $aHerbicides
650 $aIntercropping
650 $aLivestock
650 $aNicosulfuron
650 $aCapim Urochloa
650 $aHerbicida
650 $aLeguminosa Forrageira
650 $aPastagem Consorciada
700 1 $aOLIVEIRA, S. M.
700 1 $aALMEIDA, R. E. M.
700 1 $aPIEROZAN JUNIOR, C.
700 1 $aBAPTISTELLA, J. L. C.
700 1 $aFAVARIN, J. L.
773 $tAustralian Journal of Crop Science$gv. 14, n. 8, p. 1342-1347, 2020.
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Embrapa Pesca e Aquicultura (CNPASA) |
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