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| 11. |  | PEDREIRA, B. C. e; PARAISO, I.; SILVA, D.; CARVALHO, A. P.; SOLLENBERGER, L. E.; PEREIRA, D. Forage production of continuously stocked ipyporã and mulato II brachiariagrasses in the brazilian amazon. In: ASA, CSSA & SSSA INTERNATIONAL ANNUAL MEETING, 2019, San Antonio. Embracing the digital environment: abstracts [eletrônico]... San Antonio: ASA; CSSA; SSSA, 2019.| Biblioteca(s): Embrapa Agrossilvipastoril. |
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| 14. | | JANK, L.; QUESENBERRY, K. H.; SOLLENBERGER, L. E.; WOFFORD, D. S.; LYRENE, P. M. Selection of morphological traits to improve forage characteristics of Setaria sphacelata grown in Florida. New Zealand Journal of Agricultural Research, Wellington, v. 50, n. 1, p. 73-83, Mar. 2007.| Biblioteca(s): Embrapa Gado de Corte. |
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| 19. | | SILVA, V. J.; PEDREIRA, C. G. S.; SOLLENBERGER, L. E.; CARVALHO, M. S. S.; TONATO, F.; BASTO, D. C. Seasonal herbage accumulation and nutritive value of irrigated 'Tifton 85', jiggs, and vaquero bermudagrasses in response to harvest frequency. Crop Science, v. 55, p. 1-9, nov.-dec. 2015.| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 20. | | HOLDERBAUM, J. F.; SOLLENBERGER, L. E.; MOORE, J. E.; KUNKLE, W. E.; BATES, D. B.; HAMMOND, A. C. Protein supplementation of steers grazing limpograss pasture. Journal of Production Agriculture, v.4, n.3, p.437-441, 1991.| Biblioteca(s): Embrapa Pantanal. |
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| Registros recuperados : 41 | |
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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. |
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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Circulação/Nível: |
A - 1 |
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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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