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| Registros recuperados : 424 | |
| 201. |  | MUNIZ, L. B.; MELO, C. O.; MORETTI, C. L.; MATTOS, L. M.; CARVALHO, P. G. B.; OLIVEIRA, V. R. Qualidade física e química de cebolas armazenadas sob refrigeração. In: CONGRESSO BRASILEIRO DE OLERICULTURA, 47.; SIMPÓSIO BRASILEIRO SOBRE CUCURBITÁCEAS, 4., 2007, Porto Seguro. Resgatando e valorizando as hortaliças subutilizadas. Porto Seguro: Associação Brasileira de Horticultura, 2007.| Biblioteca(s): Embrapa Hortaliças. |
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| 202. | | CRISTALDO, T. O; TUTIJA, J. H. S.; PEREIRA, P. S.; ASMUS, G. L.; MELO, C. L. P. de. Reação da série diferenciadora de soja ao nematoide de cisto quanto à resistência ao nematoide reniforme. WORKSHOP MELHORAMENTO VEGETAL, 2014, Dourados. Contribuições, avanços e perspectivas para o Cerrado brasileiro: resumos. Brasília, DF: Embrapa, 2014. Editor técnico: Carlos Lasaro Pereira de Melo.| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 208. | | FINO, T. C. M.; MELO, C. B.; RAMOS, A. F.; MCMANUS, C.; LEITE, R. C.; MARTINS, E. Ocorrence of antibodies against bovine herpesvirus 1 and bovine viral diarrhoea virus in Crioula Lageana cattle. Journal of Animal Science Advances, v. 3, n. 4, p. 165-170, 2013.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 209. | | LOPES, G. R.; GOMES, C. H. A. de M.; TURECK, C. R.; MELO, C. M. R. de. Growth of Crassostrea gasar cultured in marine and estuary environments in brazilian waters. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 48, n. 8, p. 975-982, ago. 2013. Título em português: Crescimento de Crassostrea gasar cultivada em ambientes marinho e estuarino em águas brasileiras.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 216. | | MARTINS, M. I. G.; MELO, C. A. F. de; LORETO, V.; SANTOS, R. C. dos; MELO FILHO, P. de A.; CARVALHO, R. de. Análise comparativa entre duas espécies de amendoim silvestre da seção heteranthae (gênero Arachis) utilizando métodos citogenéticos. In: ALBUQUERQUE, U. P. de.; MOURA, A. do N.; ARAÚJO, E. de L. (Org.). Biodiversidade, potencial econômico e processos eco-fisiológicos em ecossistemas nordestinos. Bauru: Canal6, 2010. p. 509-518| Biblioteca(s): Embrapa Algodão. |
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| 217. | | SILVA, M. A. A.; SOUZA, M. M.; SILVA, G. S.; MELO, C. A. F.; CORRÊA, R. X.; ARAÚJO, I. S.; CONCEIÇÃO, L. D. H. C. S. da. Analysis of transferability of microsatellite primers (SSR) in wild Passiflora species and intraspecific genetic diversity in Passiflora alata. Genetics and Molecular Research, v. 13, n. 3, p. 5908-5918, 2014.| Biblioteca(s): Embrapa Cerrados. |
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| 218. | | OLIVEIRA, A. de; BALBINOT JUNIOR, A. A.; MELO, C. L. P. de; SEIXAS, C. D. S.; LIMA, D. de; FOLONI, J. S. S.; NEUMAIER, N.; ABDELNOOR, R. Abortamento de vagens da soja tem origem desconhecida e preocupa produtores. Campo & Negócios, Grãos, Uberlândia, v. 16, n. 180, p. 30-31, mar. 2018.| Biblioteca(s): Embrapa Soja. |
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| 219. | | BALTAZAR, L. L. de; SANTOS, A. dos; DURANTE, L. G. Y.; CARNEIRO, T.; FERREIRA, C. R.; CORREA, A. M.; TORRES, F. E.; MELO, C. L. P. de. Avaliação de arquitetura de planta de genótipos de feijoeiro comum cultivado em Aquidauana, MS. In: SEMANA AGRONÔMICA, 6.; ENCONTRO TÉCNICO-CIENTÍFICO, 1., 2009, Aquidauana. [Resumos...]. Aquidauana: UEMS, 2009. 1 CD-ROM.| Biblioteca(s): Embrapa Agropecuária Oeste. |
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| 220. | | CARNEIRO. T.; BALTAZAR, L. de L.; SANTOS, A. dos; DURANTE, L. G. Y.; CORREA, A. M.; TORRES, F. E.; MELO, C. L. P. de. Avaliação do ciclo de maturação de genótipos de feijão comum na safra da "seca" em Aquidauana/MS. In: SEMANA AGRONÔMICA, 6.; ENCONTRO TÉCNICO-CIENTÍFICO, 1., 2009, Aquidauana. [Resumos...]. Aquidauana: UEMS, 2009. 1 CD-ROM.| Biblioteca(s): Embrapa Agropecuária Oeste. |
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Registro Completo
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Biblioteca(s): |
Embrapa Territorial. |
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Data corrente: |
15/12/2014 |
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Data da última atualização: |
15/12/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
AMORIM, L. B.; SALCEDO, I. H.; PAREYN, F. G. C.; ALVAREZ, I. A. |
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Afiliação: |
L. B. AMORIM, INSTITUTO NACIONAL DO SEMIÁRIDO; I. H. SALCEDO, INSTITUTO NACIONAL DO SEMIÁRIDO; F. G. C. PAREYN, ASSOCIAÇÃO PLANTAS DO NORDESTE; IVAN ANDRE ALVAREZ, CNPM. |
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Título: |
Assessment of nutrient returns in a tropical dry forest after clear-cut without burning. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Nutrient Cycling in Agroecosystems, v. 100, n. 1, sep. 2014. |
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Páginas: |
p. 1-10 |
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ISBN: |
1385-1314 |
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DOI: |
10.1007/s10705-014-9646-5 |
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Idioma: |
Português |
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Conteúdo: |
Tropical dry forests (TDFs) are being deforested at unprecedented rates. The slash/burn/ agriculture/fallow-extensive livestock sequence causes significant nutrient losses and soil degradation. Our aim is to assess nutrient inputs and outputs in a TDF area under an alternative management system, for exclusive wood production. The study involved clear-cutting a preserved caatinga TDF site without burning, quantifying nutrients exported in firewood/ timber and nutrients returned to the soil from the litter layer plus the slash debris, left to decompose unburned on the soil surface. Before clear-cut, the litter layer on the forest floor contained 6.1 t ha of dry matter (DM). After clear-cut, the aboveground biomass was 61.9 t DM ha-1 (consisting of 21.5 t DM ha-1 of commercial wood and 40.4 t DM ha-1 of clear-cut debris that did not include the underlying litter layer). The litter layer was composed of fine and coarse litter, with turnovers of 0.86 and 0.31 year-1, respectively, separately measured in uncut control plots during two rainy seasons (Dec-2007/June-2008 and Dec-2008/ June-2009). In a single season, its decomposition returned to the soil 48.4, 1.16 and 12.3 kg ha-1 of N, P and K. The clear-cut debris was mainly composed of branches, 33.4 t ha-1, bromeliads, 5.63 t ha-1 and green leaves, 1.32 t ha-1. In-situ decomposition rates for branches and bromeliads were 0.24 and 1.47 year-1, respectively. After two rainy seasons the clear-cut debris released 206, 6.5 and 106 kg ha-1 of N, P and K respectively. This input plus that of the underlying litter layer exceeded exports in the commercial wood, and replenished a soil nutrient stock (0?30 cm) of approximately the same magnitude. MenosTropical dry forests (TDFs) are being deforested at unprecedented rates. The slash/burn/ agriculture/fallow-extensive livestock sequence causes significant nutrient losses and soil degradation. Our aim is to assess nutrient inputs and outputs in a TDF area under an alternative management system, for exclusive wood production. The study involved clear-cutting a preserved caatinga TDF site without burning, quantifying nutrients exported in firewood/ timber and nutrients returned to the soil from the litter layer plus the slash debris, left to decompose unburned on the soil surface. Before clear-cut, the litter layer on the forest floor contained 6.1 t ha of dry matter (DM). After clear-cut, the aboveground biomass was 61.9 t DM ha-1 (consisting of 21.5 t DM ha-1 of commercial wood and 40.4 t DM ha-1 of clear-cut debris that did not include the underlying litter layer). The litter layer was composed of fine and coarse litter, with turnovers of 0.86 and 0.31 year-1, respectively, separately measured in uncut control plots during two rainy seasons (Dec-2007/June-2008 and Dec-2008/ June-2009). In a single season, its decomposition returned to the soil 48.4, 1.16 and 12.3 kg ha-1 of N, P and K. The clear-cut debris was mainly composed of branches, 33.4 t ha-1, bromeliads, 5.63 t ha-1 and green leaves, 1.32 t ha-1. In-situ decomposition rates for branches and bromeliads were 0.24 and 1.47 year-1, respectively. After two rainy seasons the clear-cut debris released 206, 6.5 and 106 kg... Mostrar Tudo |
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Palavras-Chave: |
Debris decomposition; Litter decomposition; Nutrient cycling. |
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Thesagro: |
Caatinga. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/113713/1/4238.pdf
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Marc: |
LEADER 02429naa a2200241 a 4500
001 2002495
005 2014-12-15
008 2014 bl uuuu u00u1 u #d
022 $a1385-1314
024 7 $a10.1007/s10705-014-9646-5$2DOI
100 1 $aAMORIM, L. B.
245 $aAssessment of nutrient returns in a tropical dry forest after clear-cut without burning.$h[electronic resource]
260 $c2014
300 $ap. 1-10
520 $aTropical dry forests (TDFs) are being deforested at unprecedented rates. The slash/burn/ agriculture/fallow-extensive livestock sequence causes significant nutrient losses and soil degradation. Our aim is to assess nutrient inputs and outputs in a TDF area under an alternative management system, for exclusive wood production. The study involved clear-cutting a preserved caatinga TDF site without burning, quantifying nutrients exported in firewood/ timber and nutrients returned to the soil from the litter layer plus the slash debris, left to decompose unburned on the soil surface. Before clear-cut, the litter layer on the forest floor contained 6.1 t ha of dry matter (DM). After clear-cut, the aboveground biomass was 61.9 t DM ha-1 (consisting of 21.5 t DM ha-1 of commercial wood and 40.4 t DM ha-1 of clear-cut debris that did not include the underlying litter layer). The litter layer was composed of fine and coarse litter, with turnovers of 0.86 and 0.31 year-1, respectively, separately measured in uncut control plots during two rainy seasons (Dec-2007/June-2008 and Dec-2008/ June-2009). In a single season, its decomposition returned to the soil 48.4, 1.16 and 12.3 kg ha-1 of N, P and K. The clear-cut debris was mainly composed of branches, 33.4 t ha-1, bromeliads, 5.63 t ha-1 and green leaves, 1.32 t ha-1. In-situ decomposition rates for branches and bromeliads were 0.24 and 1.47 year-1, respectively. After two rainy seasons the clear-cut debris released 206, 6.5 and 106 kg ha-1 of N, P and K respectively. This input plus that of the underlying litter layer exceeded exports in the commercial wood, and replenished a soil nutrient stock (0?30 cm) of approximately the same magnitude.
650 $aCaatinga
653 $aDebris decomposition
653 $aLitter decomposition
653 $aNutrient cycling
700 1 $aSALCEDO, I. H.
700 1 $aPAREYN, F. G. C.
700 1 $aALVAREZ, I. A.
773 $tNutrient Cycling in Agroecosystems$gv. 100, n. 1, sep. 2014.
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