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| 5. |  | PADILHA, F. A.; RESENDE, A. V. de; MOREIRA, S. G.; GUIMARAES, L. J. M.; GUIMARAES, P. E. de O.; OLIVEIRA, A. C. de. Produtividade de híbridos de milho sob dois níveis de tecnologia na região Central de Minas Gerais. Revista Brasileira de Milho e Sorgo, Sete Lagoas, v. 14, n. 2, p. 207-218, 2015.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 7. | | SILVA, C. G. M.; PADILHA, F. A.; GUTIÉRREZ, A. M.; RESENDE, A. V. de; MOREIRA, S. G.; SIMÃO, E. de P. Exportação de macronutrientes por híbridos de milho cultivados em ambientes com diferentes níveis de investimento tecnológico. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 35., 2015, Natal. O solo e suas múltiplas funções: anais. Natal: Sociedade Brasileira de Ciência do Solo, 2015.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 8. | | GUTIÉRREZ, A. M.; PADILHA, F. A.; SILVA, C. G. M.; RESENDE, A. V. de; MOREIRA, S. G.; SIMÃO, E. de P. Teor nos grãos e exportação de micronutrientes pelo milho em dois níveis de investimento tecnológico. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 35., 2015, Natal. O solo e suas múltiplas funções: anais. Natal: Sociedade Brasileira de Ciência do Solo, 2015.| Biblioteca(s): Embrapa Milho e Sorgo. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
21/10/2022 |
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Data da última atualização: |
21/10/2022 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
HOMEM, B. G. C.; SPASIANI, P. P.; DUBEUX JUNIOE, J. XC. B.; BODDEY, R. M. |
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Afiliação: |
B. G. C. HOMEM, UFLA; P. P. SPASIANI, UFLA; JOSÉ C. B. DUBEUX JUNIOR, UNIVERSITY OF FLORIDA; ROBERT MICHAEL BODDEY, CNPAB. |
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Título: |
How does N fertilization or forage legumes affect forage and animal productin? |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
In: INTERNATIONAL GRASSLAND CONGRESS PROCEEDINGS, 24; INTERNATIONAL RANGELAND CONGRESS, 11, 2021 kentucky. Sustainable Use of Grassland and Rangeland Resources for Improved Livelihoods: proceeding...kentucky: University of kentucky, 2022. |
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Idioma: |
Português |
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Conteúdo: |
Livestock grazing in tropical climates is characterized by low productivity. Forage and animal production can be improved by applying nitrogen (N) fertiliser or using forage legumes. This 2.5-yr study assessed the canopy structure and productivity of beef cattle grazing either a mixed pasture of Brachiaria brizantha cv. Marandu (palisadegrass) and Arachis pintoi (forage peanut) cv. BRS Mandobi or a Marandu palisade grass monoculture with or without N fertilisation. The experiment was carried out in Southeast Brazil, where the canopy structure (herbage mass) and animal productivity (stocking rate and liveweight gain per ha) were compared for three types of pastures: 1) mixed pasture of Marandu palisade grass and forage peanut (GRASS+LEGUME); 2) a monoculture of Marandu palisadegrass fertilised with 150 kg N/ha/year (GRASS+N); and 3) monoculture of Marandu palisadegrass without N application (GRASS), under continuous stocking. A minimum of two Nellore heifers and additional put-and-takes were used to keep canopy height at 20-25 cm. A randomized complete block design was used with four replicates; seasons were considered repeated measurements over time. Herbage mass was greater in the GRASS+N pasture (P < 0.001); however, in the last three seasons (Spring II, Summer III, and Fall III), there was no difference to GRASS+LEGUME pasture. In the GRASS+LEGUME pasture, there was an increase of legume mass (1.260 to 2.565 kg/ha) and botanical composition (23.6 to 39.1% of legume in forage mass) throughout the study. The stocking rate (P < 0.001) and liveweight gain per ha (P < 0.001) were greater in GRASS+N, without difference among GRASS+LEGUME and GRASS pastures in the first seven seasons. In the last three seasons, with an increase of legume proportion, stocking rate and liveweight were intermediate for GRASS+LEGUME pasture. Legume increased herbage mass and animal productivity in the long term. Immediate responses were achieved with N fertilization. MenosLivestock grazing in tropical climates is characterized by low productivity. Forage and animal production can be improved by applying nitrogen (N) fertiliser or using forage legumes. This 2.5-yr study assessed the canopy structure and productivity of beef cattle grazing either a mixed pasture of Brachiaria brizantha cv. Marandu (palisadegrass) and Arachis pintoi (forage peanut) cv. BRS Mandobi or a Marandu palisade grass monoculture with or without N fertilisation. The experiment was carried out in Southeast Brazil, where the canopy structure (herbage mass) and animal productivity (stocking rate and liveweight gain per ha) were compared for three types of pastures: 1) mixed pasture of Marandu palisade grass and forage peanut (GRASS+LEGUME); 2) a monoculture of Marandu palisadegrass fertilised with 150 kg N/ha/year (GRASS+N); and 3) monoculture of Marandu palisadegrass without N application (GRASS), under continuous stocking. A minimum of two Nellore heifers and additional put-and-takes were used to keep canopy height at 20-25 cm. A randomized complete block design was used with four replicates; seasons were considered repeated measurements over time. Herbage mass was greater in the GRASS+N pasture (P < 0.001); however, in the last three seasons (Spring II, Summer III, and Fall III), there was no difference to GRASS+LEGUME pasture. In the GRASS+LEGUME pasture, there was an increase of legume mass (1.260 to 2.565 kg/ha) and botanical composition (23.6 to 39.1% of legume in for... Mostrar Tudo |
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Palavras-Chave: |
Animal productivity; Herbage mass; Mixed grass legume pasture. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02736nam a2200181 a 4500
001 2147574
005 2022-10-21
008 2022 bl uuuu u00u1 u #d
100 1 $aHOMEM, B. G. C.
245 $aHow does N fertilization or forage legumes affect forage and animal productin?$h[electronic resource]
260 $aIn: INTERNATIONAL GRASSLAND CONGRESS PROCEEDINGS, 24; INTERNATIONAL RANGELAND CONGRESS, 11, 2021 kentucky. Sustainable Use of Grassland and Rangeland Resources for Improved Livelihoods: proceeding...kentucky: University of kentucky$c2022
520 $aLivestock grazing in tropical climates is characterized by low productivity. Forage and animal production can be improved by applying nitrogen (N) fertiliser or using forage legumes. This 2.5-yr study assessed the canopy structure and productivity of beef cattle grazing either a mixed pasture of Brachiaria brizantha cv. Marandu (palisadegrass) and Arachis pintoi (forage peanut) cv. BRS Mandobi or a Marandu palisade grass monoculture with or without N fertilisation. The experiment was carried out in Southeast Brazil, where the canopy structure (herbage mass) and animal productivity (stocking rate and liveweight gain per ha) were compared for three types of pastures: 1) mixed pasture of Marandu palisade grass and forage peanut (GRASS+LEGUME); 2) a monoculture of Marandu palisadegrass fertilised with 150 kg N/ha/year (GRASS+N); and 3) monoculture of Marandu palisadegrass without N application (GRASS), under continuous stocking. A minimum of two Nellore heifers and additional put-and-takes were used to keep canopy height at 20-25 cm. A randomized complete block design was used with four replicates; seasons were considered repeated measurements over time. Herbage mass was greater in the GRASS+N pasture (P < 0.001); however, in the last three seasons (Spring II, Summer III, and Fall III), there was no difference to GRASS+LEGUME pasture. In the GRASS+LEGUME pasture, there was an increase of legume mass (1.260 to 2.565 kg/ha) and botanical composition (23.6 to 39.1% of legume in forage mass) throughout the study. The stocking rate (P < 0.001) and liveweight gain per ha (P < 0.001) were greater in GRASS+N, without difference among GRASS+LEGUME and GRASS pastures in the first seven seasons. In the last three seasons, with an increase of legume proportion, stocking rate and liveweight were intermediate for GRASS+LEGUME pasture. Legume increased herbage mass and animal productivity in the long term. Immediate responses were achieved with N fertilization.
653 $aAnimal productivity
653 $aHerbage mass
653 $aMixed grass legume pasture
700 1 $aSPASIANI, P. P.
700 1 $aDUBEUX JUNIOE, J. XC. B.
700 1 $aBODDEY, R. M.
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