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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
09/11/2021 |
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Data da última atualização: |
09/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
DEPABLOS, L.; HOMEM, B. G. C.; FERREIRA, I. M.; BERNARDES, T. F.; BODDEY, R. M.; LARA, M. A. S.; CASAGRANDE, D. R. |
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Afiliação: |
LUIS DEPABLOS, UNIVERSIDAD CENTRAL DE VENEZUELA; BRUNO G. C. HOMEM, UFLA; IGOR M. FERREIRA, UFLA; THIAGO F. BERNARDES, UFLA; ROBERT MICHAEL BODDEY, CNPAB; MÁRCIO A. S. LARA, UFLA; DANIEL R. CASAGRANDE, UFLA. |
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Título: |
Nitrogen cycling in tropical grass-legume pastures managed under canopy light interception. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Nutrient Cycling in Agroecosystems, V. 121,p. 51-67, 2021. |
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ISSN: |
1385-1314 |
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DOI: |
https://doi.org/10.1007/s10705-021-10160-7 |
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Idioma: |
Inglês |
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Conteúdo: |
In grass-legume pastures, grazing management strategies are an essential factor affecting nitrogen (N) cycling. This study assessed the impact of grazing management on N cycling in rotationally-stocked mixed pastures of ?Marandu? palisadegrass (Brachiaria brizantha) and ?Comum? calopo (Calopogonium mucunoides). Treatments included three grazing management strategies, defined by interruption of the rest period when the canopy reached 90 (90LI), 95 (95LI) and 100% (100LI) of the interception of photosynthetically active radiation. A 2-yr experimental period was adopted. Plant litter responses, forage intake and livestock excretion were evaluated. No differences between grazing management were obtained for existing (294 g OM m−2) and deposited litter (6.7 g OM m−2 d−1, P > 0.10). Compared to the dry season, the litter decomposition rate increased 24.0%, and the half-life decreased 37.8% in the rainy season (P < 0.10). The N cycling via litter (553 g ha−1 d−1) was similar in all grazing management (P > 0.10). Less frequent defoliation (100LI) resulted in reduced proportion of legume intake (P < 0.10, 94.4 vs. 168.5 g kg−1; an average of 90LI and 95LI, respectively), lower N intake (123.1 vs. 194.1 g animal unit−1 d−1) and a lower input of N from biological fixation (73.2 vs. 97.8 kg ha−1 yr−1). Less frequent defoliation should be avoided because it reduces the N intake and N retained by animals, which caused a reduction in N utilisation efficiency by heifers. Thus, 95% light interception is the maximum limit to interrupt the regrowth in palisadegrass-calopo pastures. MenosIn grass-legume pastures, grazing management strategies are an essential factor affecting nitrogen (N) cycling. This study assessed the impact of grazing management on N cycling in rotationally-stocked mixed pastures of ?Marandu? palisadegrass (Brachiaria brizantha) and ?Comum? calopo (Calopogonium mucunoides). Treatments included three grazing management strategies, defined by interruption of the rest period when the canopy reached 90 (90LI), 95 (95LI) and 100% (100LI) of the interception of photosynthetically active radiation. A 2-yr experimental period was adopted. Plant litter responses, forage intake and livestock excretion were evaluated. No differences between grazing management were obtained for existing (294 g OM m−2) and deposited litter (6.7 g OM m−2 d−1, P > 0.10). Compared to the dry season, the litter decomposition rate increased 24.0%, and the half-life decreased 37.8% in the rainy season (P < 0.10). The N cycling via litter (553 g ha−1 d−1) was similar in all grazing management (P > 0.10). Less frequent defoliation (100LI) resulted in reduced proportion of legume intake (P < 0.10, 94.4 vs. 168.5 g kg−1; an average of 90LI and 95LI, respectively), lower N intake (123.1 vs. 194.1 g animal unit−1 d−1) and a lower input of N from biological fixation (73.2 vs. 97.8 kg ha−1 yr−1). Less frequent defoliation should be avoided because it reduces the N intake and... Mostrar Tudo |
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Palavras-Chave: |
BNF; Efoliation frequency; Marandu palisadegrass. |
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Thesagro: |
Capim Urochloa. |
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Thesaurus Nal: |
Excreta. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02532naa a2200277 a 4500
001 2135955
005 2021-11-09
008 2021 bl uuuu u00u1 u #d
022 $a1385-1314
024 7 $ahttps://doi.org/10.1007/s10705-021-10160-7$2DOI
100 1 $aDEPABLOS, L.
245 $aNitrogen cycling in tropical grass-legume pastures managed under canopy light interception.$h[electronic resource]
260 $c2021
520 $aIn grass-legume pastures, grazing management strategies are an essential factor affecting nitrogen (N) cycling. This study assessed the impact of grazing management on N cycling in rotationally-stocked mixed pastures of ?Marandu? palisadegrass (Brachiaria brizantha) and ?Comum? calopo (Calopogonium mucunoides). Treatments included three grazing management strategies, defined by interruption of the rest period when the canopy reached 90 (90LI), 95 (95LI) and 100% (100LI) of the interception of photosynthetically active radiation. A 2-yr experimental period was adopted. Plant litter responses, forage intake and livestock excretion were evaluated. No differences between grazing management were obtained for existing (294 g OM m−2) and deposited litter (6.7 g OM m−2 d−1, P > 0.10). Compared to the dry season, the litter decomposition rate increased 24.0%, and the half-life decreased 37.8% in the rainy season (P < 0.10). The N cycling via litter (553 g ha−1 d−1) was similar in all grazing management (P > 0.10). Less frequent defoliation (100LI) resulted in reduced proportion of legume intake (P < 0.10, 94.4 vs. 168.5 g kg−1; an average of 90LI and 95LI, respectively), lower N intake (123.1 vs. 194.1 g animal unit−1 d−1) and a lower input of N from biological fixation (73.2 vs. 97.8 kg ha−1 yr−1). Less frequent defoliation should be avoided because it reduces the N intake and N retained by animals, which caused a reduction in N utilisation efficiency by heifers. Thus, 95% light interception is the maximum limit to interrupt the regrowth in palisadegrass-calopo pastures.
650 $aExcreta
650 $aCapim Urochloa
653 $aBNF
653 $aEfoliation frequency
653 $aMarandu palisadegrass
700 1 $aHOMEM, B. G. C.
700 1 $aFERREIRA, I. M.
700 1 $aBERNARDES, T. F.
700 1 $aBODDEY, R. M.
700 1 $aLARA, M. A. S.
700 1 $aCASAGRANDE, D. R.
773 $tNutrient Cycling in Agroecosystems, V. 121,p. 51-67, 2021.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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| Registros recuperados : 17 | |
| 3. |  | FERREIRA, I. M.; VIEIRA, G. S.; BRAGA, T. F.; SILVA, T. C. F.; FRANCO, M. M.; ANTUNES, R. C. Allelic and phenotypic frequencies of point mutations (SNPs) in the HFAB, DEGAT1, LEPR, MC4R, SREBF1 and GH genes in Large White matrices. In: BRAZILIAN INTERNATIONAL CONGRESS OF GENETICS, 2017, Águas de Lindóia, 12 a 15 set. 2017.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 4. | | MALHEIROS, D. F.; SARQUIS, I. R.; FERREIRA, I. M.; MATHEWS, P. D.; MERTINS, O.; TAVARES-DIAS, M. Nanoemulsions with oleoresin of Copaifera (Leguminosae) improve anthelmintic efficacy in the control of monogenean parasites when compared to oleoresin without nanoformulation. Journal of Fish Diseases, v. 43, n. 6, p. 687-695, June 2020.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Amapá. |
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| 6. | | DIAS, J. do S. A.; LIRA-GUEDES, A. C.; FERREIRA, I. M.; OLIVEIRA, A. E. M. de F. M.; CARVALHO, J. C. T. de. Avaliação in vitro da atividade antifúngica do óleo resina da copaibeira (Copaifera reticulata Ducke) e da sua nanoemulsão sobre uma cepa selvagem de Aspergillus fumigatus Fresenius isolada da castanheira-do-Brasil (Bertholletia excelsa Bompl.). Research, Society and Development, v. 12, n. 4, e9512440852, 2023.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: C - 0 |
| Biblioteca(s): Embrapa Amapá. |
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| 9. | | NEVES JUNIOR, A. C. V.; MELO, A.; PINHO, C.; CONEGLIAN, R. C. C.; SOARES, A. G.; FERREIRA, I. M. P. L. V. O. Response surface methodology for optimization of cyanamide analysis by in situ derivatization and dispersive liquid-liquid microextraction. Journal of chemometrics, v. 28, n. 9, p. 716-724, may 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 10. | | MALHEIROS, D. F.; VIDEIRA, M. N.; CARVALHO, A. A.; SALOMÃO, C. B.; FERREIRA, I. M.; CANUTO, K. M.; YOSHIOKA, E. T. O.; TAVARES-DIAS, M. Efficacy of Carapa guianensis oil (Meliaceae) against monogeneans infestations: a potential antiparasitic for Colossoma macropomum and its effects in hematology and histopathology of gills. Brazilian Journal of Veterinary Parasitology, v. 32, n. 3, e007123, 2023. Título em Português: Revista Brasileira dc Parasitologia Veterinéria.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Agroindústria Tropical; Embrapa Amapá. |
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| 11. | | DEPABLOS, L.; HOMEM, B. G. C.; FERREIRA, I. M.; BERNARDES, T. F.; BODDEY, R. M.; LARA, M. A. S.; CASAGRANDE, D. R. Nitrogen cycling in tropical grass-legume pastures managed under canopy light interception. Nutrient Cycling in Agroecosystems, V. 121,p. 51-67, 2021.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 12. | | SENA, I. S.; FERREIRA, A. M.; MARINHO, V. H.; HOLANDA, F. H. E.; BORGES, S. F.; SOUZA, A. A. de; KOGA, R. de C. R.; LIMA, A. L.; FLORENTINO, A. C.; FERREIRA, I. M. Euterpe oleracea Mart (açaizeiro) from the Brazilian Amazon: a novel font of fungi for Lipase production. Microorganisms, v. 10, p. 2394, 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Amapá. |
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| 13. | | GOUVÊA, A. C. M. S.; MELO, A.; SANTIAGO, M. C. P. de A.; PEIXOTO, F. M.; FREITAS, V.; GODOY, R. L. de O.; FERREIRA, I. M. P. L. V. O. Identification and quantification of anthocyanins in fruits from Neomitranthes obscura (DC.) N. Silveira an endemic specie from Brazil by comparison of chromatographic methodologies. Food Chemistry, n. 185, p. 277-283, 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 14. | | FERREIRA, I. M.; BRAGA, T. F.; GUIMARÃES, E. C.; DURVAL, M. C.; MENDES, L. B.; SOARES, J. S.; MATARIM, D. L.; KRUGER, B. C.; FRANCO, M. M.; ANTUNES, R. C. A DdeI polymorphism in the growth hormone gene is associated with higher lean meat yield and pH 45 min in postmortem pigs. Genetics and Molecular Research, v. 18, n. 2, article gmr18257, 2019.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 15. | | BAIA, R. R. de J.; MALHEIROS, D. F.; VIDEIRA, M. N.; CARVALHO, A. A. de; SALOMÃO, C. B.; FERREIRA, I. M.; CANUTO, K. M.; YOSHIOKA, E. T. O.; TAVARES-DIAS, M. Eficácia do óleo de Carapa guianensis (Meliaceae) contra infestações de monogenéticos em Colossoma macropomum e seus efeitos hematológicos e histopatológicos. In: ENCONTRO BRASILEIRO DE PATOLOGISTAS DE ORGANISMOS AQUÁTICOS, 17., 2023, Belo Horizonte. Anais. [São Paulo]: Abrapoa, 2023.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroindústria Tropical; Embrapa Amapá. |
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| 16. | | ARAÚJO, I. F. de; ARAÚJO, P. H. F. de; FERREIRA, R. M. A.; SENA, I. D. S.; LIMA, A. L.; CARVALHO, J. C. T.; FERREIRA, I. M.; SOUTO, R. N. P. Larvicidal effect of hydroethanolic extract from the leaves of Acmella oleracea L. R. K. Jansen in Aedes aegypti and Culex quinquefasciatus. South African Journal of Botany, v. 117, p. 134-140, 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Amapá. |
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| 17. | | PEIXOTO, F. M.; FERNANDES, I.; GOUVÊA, A. C. M. S.; SANTIAGO, M. C. P. de A.; BORGUINI, R. G.; MATEUS, N.; FREITAS, V.; GODOY, R. L. de O.; FERREIRA, I. M. P. L. V. O. Simulation of in vitro digestion coupled to gastric and intestinal transport models to estimate absorption of anthocyanins from peel powder of jabuticaba, jamelão and jambo fruits. Journal of Functional Foods, v. 24, p. 373-381, 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| Registros recuperados : 17 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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