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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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Embrapa Pesca e Aquicultura (CNPASA) |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
17/10/2012 |
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Data da última atualização: |
21/02/2024 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
GRANJA, G. P.; FEITOSA, J. R.; MENDES, A. M. S.; OLSZEVSKI, N.; GIONGO, V.; CUNHA, T. J. F. |
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Afiliação: |
GILMARA PIRES GRANJA; JARDÊNIA RODRIGUES FEITOSA; ALESSANDRA MONTEIRO SALVIANO MENDES, CPATSA; NELCI OLSZEVSKI; VANDERLISE GIONGO, CPATSA; TONY JARBAS FERREIRA CUNHA, CPATSA. |
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Título: |
Micronutrientes em argissolo amarelo sob cultivo orgânico de videira de vinho na região do Submédio São Francisco. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 30.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 14.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 12.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 9.; SIMPÓSIO SOBRE SELÊNIO NO BRASIL, 1., 2012, Maceió. A responsabilidade socioambiental da pesquisa agrícola: anais. Viçosa, MG: SBCS, 2012. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Português |
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Conteúdo: |
O objetivo deste trabalho foi avaliar os efeitos do cultivo orgânico nos teores de micronutrientes em Argissolo Amarelo, ao longo de um ano de cultivo com videira de vinho na região do Submédio São Francisco |
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Palavras-Chave: |
Adubação orgânica; Grape; Qualidade do solo; Vitivinicultura. |
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Thesagro: |
Fertilidade; Solo; Uva. |
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Thesaurus NAL: |
Grapes; Soil. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/68156/1/Vanderlise8.pdf
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Marc: |
LEADER 01308nam a2200289 a 4500
001 1936925
005 2024-02-21
008 2012 bl uuuu u00u1 u #d
100 1 $aGRANJA, G. P.
245 $aMicronutrientes em argissolo amarelo sob cultivo orgânico de videira de vinho na região do Submédio São Francisco.
260 $aIn: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 30.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 14.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 12.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 9.; SIMPÓSIO SOBRE SELÊNIO NO BRASIL, 1., 2012, Maceió. A responsabilidade socioambiental da pesquisa agrícola: anais. Viçosa, MG: SBCS$c2012
300 $c1 CD-ROM.
520 $aO objetivo deste trabalho foi avaliar os efeitos do cultivo orgânico nos teores de micronutrientes em Argissolo Amarelo, ao longo de um ano de cultivo com videira de vinho na região do Submédio São Francisco
650 $aGrapes
650 $aSoil
650 $aFertilidade
650 $aSolo
650 $aUva
653 $aAdubação orgânica
653 $aGrape
653 $aQualidade do solo
653 $aVitivinicultura
700 1 $aFEITOSA, J. R.
700 1 $aMENDES, A. M. S.
700 1 $aOLSZEVSKI, N.
700 1 $aGIONGO, V.
700 1 $aCUNHA, T. J. F.
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