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| 80. | | SOUZA, R. C. D.; REIS, R. B.; LOPES, F. C. F.; LEÃO, J. M.; MOURTHÉ, M. H. F. Productive parameters, metabolic and economic viability of dairy cows supplemented with different levels of urea in diets based on sugarcane. Journal of Animal Science, v. 92, p. 803, 2014. Supplement. Edição dos abstracts do Joint Annual Meeting, 2014, Kansas City.| Biblioteca(s): Embrapa Gado de Leite. |
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Registro Completo
|
Biblioteca(s): |
Embrapa Gado de Leite. |
|
Data corrente: |
03/12/2018 |
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Data da última atualização: |
24/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
B - 1 |
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Autoria: |
FARIA, B. M.; MORENZ, M. J. F.; PACIULLO, D. S. C.; LOPES, F. C. F.; GOMIDE, C. A. de M. |
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Afiliação: |
BRUNA MOSCAT FARIA, UFRRJ; MIRTON JOSE FROTA MORENZ, CNPGL; DOMINGOS SAVIO CAMPOS PACIULLO, CNPGL; FERNANDO CESAR FERRAZ LOPES, CNPGL; CARLOS AUGUSTO DE MIRANDA GOMIDE, CNPGL. |
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Título: |
Growth and bromatological characteristics of Brachiaria decumbens and Brachiaria ruziziensis under shading and nitrogen. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Revista Ciência Agronômica, v. 49, n. 3, p. 529-536, 2018. |
|
DOI: |
10.5935/1806-6690.20180060 |
|
Idioma: |
Inglês |
|
Conteúdo: |
ABSTRACT This study aimed to evaluate the productive and qualitative characteristics of Brachiaria decumbens and Brachiaria ruziziensis subjected to three levels of artificial shading (0, 36 and 54%) and four nitrogen (N) doses (0; 50; 100 and 150 mg dm-3 soil), using completely randomized design with a factorial scheme 2 x 3 x 4, with three replications. The dry matter production (DMP), the number of tillers per pot, root weight and crude protein (CP) and neutral detergent fiber (NDF) contents were evaluated. Both grasses responded quadractly to N, but B. ruziziensis presented greater production under the two highest N doses. The tillers density increased with N dose and was reduced under shading. The root weight increased with N dose, linearly in the full sun and quadractly in the shade. The shading and N showed a positive influence on CP contents. For NDF content, was observed reduction with increase of N dose. The NDF content of B. decumbens increased with shading levels; for B. ruziziensis, the greatest value was observed under intermediate shading level. The N fertilization is an important strategy to improve DMP, tillers density and CP content, for both grasses. However, intense shading should be avoided, as it reduces tillering and root weight, which may threat pasture persistence. |
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Palavras-Chave: |
Fibrous fraction; Tropical grasses. |
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Thesaurus NAL: |
Crude protein; Silvopastoral systems; Tillering; Urochloa. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/187554/1/Cnpgl-2018-RevCiAgr-Mirton-Growth.pdf
|
|
Marc: |
LEADER 02105naa a2200253 a 4500
001 2100555
005 2023-01-24
008 2018 bl uuuu u00u1 u #d
024 7 $a10.5935/1806-6690.20180060$2DOI
100 1 $aFARIA, B. M.
245 $aGrowth and bromatological characteristics of Brachiaria decumbens and Brachiaria ruziziensis under shading and nitrogen.$h[electronic resource]
260 $c2018
520 $aABSTRACT This study aimed to evaluate the productive and qualitative characteristics of Brachiaria decumbens and Brachiaria ruziziensis subjected to three levels of artificial shading (0, 36 and 54%) and four nitrogen (N) doses (0; 50; 100 and 150 mg dm-3 soil), using completely randomized design with a factorial scheme 2 x 3 x 4, with three replications. The dry matter production (DMP), the number of tillers per pot, root weight and crude protein (CP) and neutral detergent fiber (NDF) contents were evaluated. Both grasses responded quadractly to N, but B. ruziziensis presented greater production under the two highest N doses. The tillers density increased with N dose and was reduced under shading. The root weight increased with N dose, linearly in the full sun and quadractly in the shade. The shading and N showed a positive influence on CP contents. For NDF content, was observed reduction with increase of N dose. The NDF content of B. decumbens increased with shading levels; for B. ruziziensis, the greatest value was observed under intermediate shading level. The N fertilization is an important strategy to improve DMP, tillers density and CP content, for both grasses. However, intense shading should be avoided, as it reduces tillering and root weight, which may threat pasture persistence.
650 $aCrude protein
650 $aSilvopastoral systems
650 $aTillering
650 $aUrochloa
653 $aFibrous fraction
653 $aTropical grasses
700 1 $aMORENZ, M. J. F.
700 1 $aPACIULLO, D. S. C.
700 1 $aLOPES, F. C. F.
700 1 $aGOMIDE, C. A. de M.
773 $tRevista Ciência Agronômica$gv. 49, n. 3, p. 529-536, 2018.
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Embrapa Gado de Leite (CNPGL) |
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