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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pesca e Aquicultura. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pesca e Aquicultura. |
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Data corrente: |
14/02/2019 |
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Data da última atualização: |
14/02/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
KOHMANN, M. M.; SOLLENBERGER, L. E.; DUBEUX JUNIOR, J. C. B.; SILVEIRA, M. L.; MORENO, L. S. B.; SILVA, L. S. da; ARYAL, P. |
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Afiliação: |
MARTA M. KOHMANN, UNIVERSITY OF FLORIDA, Gainesville-FL; LYNN E. SOLLENBERGER, UNIVERSITY OF FLORIDA, Gainesville-FL; JOSE C. B. DUBEUX JUNIOR, UNIVERSITY OF FLORIDA, Marianna-FL; MARIA L. SILVEIRA, UNIVERSITY OF FLORIDA, Ona-FL; LEONARDO SIMOES DE BARROS MORENO, CNPASA; LILIANE S. DA SILVA, UNIVERSITY OF FLORIDA, Gainesville-FL; PARMESHWOR ARYAL, UNIVERSITY OF FLORIDA, Gainesville-FL. |
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Título: |
Nitrogen fertilization and proportion of legume affect litter decomposition and nutrient return in grass pastures. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Crop Science, v. 58, n. 5, p. 2138-2148, Sept./Oct. 2018. |
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ISSN: |
0011-183X |
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DOI: |
10.2135/cropsci2018.01.0028 |
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Idioma: |
Inglês |
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Conteúdo: |
Warm-climate grasslands are often N limited. Legume litter decomposition can contribute significantly to N input in grazing systems, but its contribution depends on litter deposition, decomposition, and chemical composition. We evaluated these responses for 2 yr in unfertilized (BG) and fertilized (BGN; 50 kg N ha−1) bahiagrass (Paspalum notatum Flügge) monocultures and in mixed swards of bahiagrass plus the legume rhizoma peanut (Arachis glabrata Benth.). Legume?grass mixture litter had greater initial N concentration (26 g N kg−1 organic matter [OM]) and lower C/N ratio (22) than BG and BGN, which did not differ from each other (18 g N kg−1 OM, C/N ratio of 31). Litter biomass relative decay rate was greater for mixtures than for bahiagrass monocultures. As a result, less biomass and N remained at the end of incubation in mixtures (62 and 76%, respectively) than in monocultures (69 and 80%, respectively). Litter deposition rate was similar across treatments, but faster decomposition and greater N concentration for legume?grass mixtures resulted in larger litter N release than in monocultures (44 and 26 kg ha−1, respectively). At the end of incubation, remaining litter biomass and remaining N decreased with increasing litter legume proportion, whereas litter N concentration and litter decay rate increased. Results indicate that legume?grass mixtures are an alternative to N fertilizer for increasing N cycling through plant litter in grasslands, and although litter deposition rates were similar across treatments, increasing legume proportion in mixtures is likely to be associated with greater litter N release. MenosWarm-climate grasslands are often N limited. Legume litter decomposition can contribute significantly to N input in grazing systems, but its contribution depends on litter deposition, decomposition, and chemical composition. We evaluated these responses for 2 yr in unfertilized (BG) and fertilized (BGN; 50 kg N ha−1) bahiagrass (Paspalum notatum Flügge) monocultures and in mixed swards of bahiagrass plus the legume rhizoma peanut (Arachis glabrata Benth.). Legume?grass mixture litter had greater initial N concentration (26 g N kg−1 organic matter [OM]) and lower C/N ratio (22) than BG and BGN, which did not differ from each other (18 g N kg−1 OM, C/N ratio of 31). Litter biomass relative decay rate was greater for mixtures than for bahiagrass monocultures. As a result, less biomass and N remained at the end of incubation in mixtures (62 and 76%, respectively) than in monocultures (69 and 80%, respectively). Litter deposition rate was similar across treatments, but faster decomposition and greater N concentration for legume?grass mixtures resulted in larger litter N release than in monocultures (44 and 26 kg ha−1, respectively). At the end of incubation, remaining litter biomass and remaining N decreased with increasing litter legume proportion, whereas litter N concentration and litter decay rate increased. Results indicate that legume?grass mixtures are an alternative to N fertilizer for increasing N cycling through plant litter in grasslands, and al... Mostrar Tudo |
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Thesagro: |
Biomassa; Decomposição; Fertilizante Nitrogenado; Nitrogênio; Pastagem. |
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Thesaurus Nal: |
Grasslands; Nitrogen fertilizers; Nutrient requirements; Pastures; Plant litter. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02660naa a2200337 a 4500
001 2105968
005 2019-02-14
008 2018 bl uuuu u00u1 u #d
022 $a0011-183X
024 7 $a10.2135/cropsci2018.01.0028$2DOI
100 1 $aKOHMANN, M. M.
245 $aNitrogen fertilization and proportion of legume affect litter decomposition and nutrient return in grass pastures.$h[electronic resource]
260 $c2018
520 $aWarm-climate grasslands are often N limited. Legume litter decomposition can contribute significantly to N input in grazing systems, but its contribution depends on litter deposition, decomposition, and chemical composition. We evaluated these responses for 2 yr in unfertilized (BG) and fertilized (BGN; 50 kg N ha−1) bahiagrass (Paspalum notatum Flügge) monocultures and in mixed swards of bahiagrass plus the legume rhizoma peanut (Arachis glabrata Benth.). Legume?grass mixture litter had greater initial N concentration (26 g N kg−1 organic matter [OM]) and lower C/N ratio (22) than BG and BGN, which did not differ from each other (18 g N kg−1 OM, C/N ratio of 31). Litter biomass relative decay rate was greater for mixtures than for bahiagrass monocultures. As a result, less biomass and N remained at the end of incubation in mixtures (62 and 76%, respectively) than in monocultures (69 and 80%, respectively). Litter deposition rate was similar across treatments, but faster decomposition and greater N concentration for legume?grass mixtures resulted in larger litter N release than in monocultures (44 and 26 kg ha−1, respectively). At the end of incubation, remaining litter biomass and remaining N decreased with increasing litter legume proportion, whereas litter N concentration and litter decay rate increased. Results indicate that legume?grass mixtures are an alternative to N fertilizer for increasing N cycling through plant litter in grasslands, and although litter deposition rates were similar across treatments, increasing legume proportion in mixtures is likely to be associated with greater litter N release.
650 $aGrasslands
650 $aNitrogen fertilizers
650 $aNutrient requirements
650 $aPastures
650 $aPlant litter
650 $aBiomassa
650 $aDecomposição
650 $aFertilizante Nitrogenado
650 $aNitrogênio
650 $aPastagem
700 1 $aSOLLENBERGER, L. E.
700 1 $aDUBEUX JUNIOR, J. C. B.
700 1 $aSILVEIRA, M. L.
700 1 $aMORENO, L. S. B.
700 1 $aSILVA, L. S. da
700 1 $aARYAL, P.
773 $tCrop Science$gv. 58, n. 5, p. 2138-2148, Sept./Oct. 2018.
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Registro original: |
Embrapa Pesca e Aquicultura (CNPASA) |
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| Registros recuperados : 9 | |
| 4. |  | RIBEIRINHO, V. S.; ANDRADE, C. A. de; COSCIONE, A. R.; SILVEIRA, M. L.; PIRES, A. M. M.; MILORI, D. M. B. P.; CAMARGO, O. A. de. Humificação da matéria orgânica do solo em função da adição de lodo de esgoto em longo prazo. In: ENCONTRO BRASILEIRO DE SUBSTÂNCIAS HÚMICAS, 11., 2015, São Carlos. Substâncias húmicas e matéria orgânica natural: ciência e tecnologia: livro de resumos. São Carlos: IHSS; IQSC, 2015. p. 291-294.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Instrumentação. |
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| 5. | | RIBEIRINHO, V. S.; ANDRADE, C. A. de; COSCIONE, A. R.; SILVEIRA, M. L.; PIRES, A. M. M.; MILORI, D. M. B. P.; CAMARGO, O. A. de. Humificação da matéria orgânica do solo em função da adição de lodo de esgoto em longo prazo. In: ENCONTRO BRASILEIRO DE SUBSTÂNCIAS HÚMICAS, 11., 2015, São Carlos. Substâncias húmicas e matéria orgânica natural: ciência e tecnologia: livro de resumos... São Carlos: IHSS; IQSC, 2015. 4 p.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 6. | | KOHMANN, M. M.; SOLLENBERGER, L. E.; DUBEUX JUNIOR, J. C. B.; SILVEIRA, M. L.; MORENO, L. S. B.; SILVA, L. S. da; ARYAL, P. Nitrogen fertilization and proportion of legume affect litter decomposition and nutrient return in grass pastures. Crop Science, v. 58, n. 5, p. 2138-2148, Sept./Oct. 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Pesca e Aquicultura. |
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| 7. | | SILVA, L. S.; SOLLENBERGER, L. E.; COOLEY, K. D.; KOHMANN, M. M.; ARYAL, P.; PEDREIRA, B. C. e; PEDROSO, G. B.; SILVEIRA, M. L.; DUBEUX JÚNIOR, J. C. B. Above and Belowground Biomass Characteristics of Rhizoma Peanut Entries and Their Relationship with Soil C and N. In: ASA, CSSA & SSSA INTERNATIONAL ANNUAL MEETING, 2019, San Antonio. Embracing the digital environment: abstracts [eletrônico]... San Antonio: ASA; CSSA; SSSA, 2019.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrossilvipastoril. |
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| 8. | | RUBEL, R.; DALLA SANTA, H. S.; SCHOLZ, M.; PEREIRA, K. S.; VITOLA, F. M. D.; SOCCOL, A. T.; LEIFA, F.; URBEN, A. F.; SILVEIRA, M. L. L.; SOCCOL, L. L.; SOCCOL, C. R. Ganoderma lucidum supplemented diet showed immunomodulatory and antitumoral activities in mice. In: SIMPÓSIO INTERNACIONAL SOBRE COGUMELOS NO BRASIL, 3.; SIMPÓSIO NACIONAL SOBRE COGUMELOS COMESTÍVEIS, 2., 2006, Brasília, DF. Anais... Brasília: Embrapa Recursos Genéticos e Biotecnologia, 2006. (Embrapa Recursos Genéticos e Biotecnologia. Documentos, 183). Editores técnicos: Arailde Fontes Urben e Vanessa Velloso da S. Wetzel. p. 126.| Tipo: Resumo em Anais de Congresso | Circulação/Nível: -- - -- |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 9. | | STEFANELLO, L. O.; SCHWALBERT, R.; SCHWALBERT, R. A.; DE CONTI, L.; KULMANN, M. S. de S.; GARLET, L. P.; SILVEIRA, M. L. R.; SAUTTER, C. K.; MELO, G. W. B. de; ROZANE, D. E.; BRUNETTO, G. Nitrogen supply method affects growth, yield and must composition of young grape vines (Vitis vinifera L. cv Alicante Bouschet) in southern Brazil. Scientia Horticulturae, v. 261, (e-108910), 2019.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Uva e Vinho. |
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| Registros recuperados : 9 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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