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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
26/12/2011 |
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Data da última atualização: |
26/05/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
XAVIER, F. A. da S.; ALMEIDA, E. F.; CARDOSO, I. M.; MENDONCA, E. de S. |
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Afiliação: |
FRANCISCO ALISSON DA SILVA XAVIER, CNPMF; EVERSON F. ALMEIDA; IRENE M. CARDOSO; EDUARDO DE SA MENDONCA. |
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Título: |
Soil phosphorus distribution in sequentially extracted fractions in tropical coffee-agroecosystems in the Atlantic Forest biome, Southeastern Brazil. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Nutrient Cycling in Agroecosystems, 2011, v. 89, n. 1, p. 31-44. |
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Idioma: |
Inglês |
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Conteúdo: |
Phosphorus (P) deficiency is one of the most important constraints to food production, particularly in tropical Oxisols. This study aimed to characterize the inorganic and organic P (Pi and Po) fractions in the soil in three smallholding coffee cultivation fields managed under either agroforestry (AGF) or full sun (FSC) agroecosystems. The work was carried out in areas situated at the municipalities of Divino and Araponga in the Zona da Mata in the state of Minas Gerais, southeastern Brazil. Soil P forms including H2O-Pi; NaHCO3-Pi,Po; NaOH-Pi,Po; diluted Cl-Pi; concentrate HCl-Pi,Po and Residual-P were sequentially extracted in samples from 0 to 5 and 5 to 10-cm soil layers. Together, H2O-Pi and NaHCO3-Pi accounted on average for only 4% of soil total P in the cultivated soils. HClconc.-Pi ranged from 142.8 to 372.4 mg kg-1 being the predominant Pi fraction. AGF systems promoted an increment of 8% in the NaHCO3-Po fraction in relation to the FSC systems in the upper soil layer. The AGF systems increased HClconc.-Po pool in relation to the FSC systems in Divino and Araponga(I) soils, indicating that agroforestry is an important management strategy to increase bioavailable P and for the maintenance of organic P pool. The distribution of inorganic and organic P pools varied among the different study sites, showing that P cycling depends on the inherent characteristic of each agroecosystem. The availability of P to plants in coffee-agroforestry fields is directly associated with the cycling of the organic P pool. MenosPhosphorus (P) deficiency is one of the most important constraints to food production, particularly in tropical Oxisols. This study aimed to characterize the inorganic and organic P (Pi and Po) fractions in the soil in three smallholding coffee cultivation fields managed under either agroforestry (AGF) or full sun (FSC) agroecosystems. The work was carried out in areas situated at the municipalities of Divino and Araponga in the Zona da Mata in the state of Minas Gerais, southeastern Brazil. Soil P forms including H2O-Pi; NaHCO3-Pi,Po; NaOH-Pi,Po; diluted Cl-Pi; concentrate HCl-Pi,Po and Residual-P were sequentially extracted in samples from 0 to 5 and 5 to 10-cm soil layers. Together, H2O-Pi and NaHCO3-Pi accounted on average for only 4% of soil total P in the cultivated soils. HClconc.-Pi ranged from 142.8 to 372.4 mg kg-1 being the predominant Pi fraction. AGF systems promoted an increment of 8% in the NaHCO3-Po fraction in relation to the FSC systems in the upper soil layer. The AGF systems increased HClconc.-Po pool in relation to the FSC systems in Divino and Araponga(I) soils, indicating that agroforestry is an important management strategy to increase bioavailable P and for the maintenance of organic P pool. The distribution of inorganic and organic P pools varied among the different study sites, showing that P cycling depends on the inherent characteristic of each agroecosystem. The availability of P to plants in coffee-agroforestry fields is directly associated wit... Mostrar Tudo |
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Palavras-Chave: |
Atlantic Forest biome; Biological P cycle. |
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Thesaurus Nal: |
soil. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02192naa a2200193 a 4500
001 1910908
005 2023-05-26
008 2011 bl uuuu u00u1 u #d
100 1 $aXAVIER, F. A. da S.
245 $aSoil phosphorus distribution in sequentially extracted fractions in tropical coffee-agroecosystems in the Atlantic Forest biome, Southeastern Brazil.$h[electronic resource]
260 $c2011
520 $aPhosphorus (P) deficiency is one of the most important constraints to food production, particularly in tropical Oxisols. This study aimed to characterize the inorganic and organic P (Pi and Po) fractions in the soil in three smallholding coffee cultivation fields managed under either agroforestry (AGF) or full sun (FSC) agroecosystems. The work was carried out in areas situated at the municipalities of Divino and Araponga in the Zona da Mata in the state of Minas Gerais, southeastern Brazil. Soil P forms including H2O-Pi; NaHCO3-Pi,Po; NaOH-Pi,Po; diluted Cl-Pi; concentrate HCl-Pi,Po and Residual-P were sequentially extracted in samples from 0 to 5 and 5 to 10-cm soil layers. Together, H2O-Pi and NaHCO3-Pi accounted on average for only 4% of soil total P in the cultivated soils. HClconc.-Pi ranged from 142.8 to 372.4 mg kg-1 being the predominant Pi fraction. AGF systems promoted an increment of 8% in the NaHCO3-Po fraction in relation to the FSC systems in the upper soil layer. The AGF systems increased HClconc.-Po pool in relation to the FSC systems in Divino and Araponga(I) soils, indicating that agroforestry is an important management strategy to increase bioavailable P and for the maintenance of organic P pool. The distribution of inorganic and organic P pools varied among the different study sites, showing that P cycling depends on the inherent characteristic of each agroecosystem. The availability of P to plants in coffee-agroforestry fields is directly associated with the cycling of the organic P pool.
650 $asoil
653 $aAtlantic Forest biome
653 $aBiological P cycle
700 1 $aALMEIDA, E. F.
700 1 $aCARDOSO, I. M.
700 1 $aMENDONCA, E. de S.
773 $tNutrient Cycling in Agroecosystems, 2011$gv. 89, n. 1, p. 31-44.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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| Registros recuperados : 107 | |
| 7. |  | AOUADA, F. A.; MOURA, M. R. de; SILVA, W. T. L. da; MUNIZ, E. C.; MATTOSO, L. H. C. Preparation and Characterization of Hydrophilic, Spectroscopic, and Kinetic Properties of Hydrogels Based on Polyacrylamide and Methylcellulose Polysaccharide. Journal of Applied Polymer Science, New York, v. 120, p. 3004-3013, 2011.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Instrumentação. |
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| 11. | | AZEREDO, H. M. C.; MOURA, M. R. de; MATTOSO, L. H. C.; AVENA-BUSTILLOS, R. J.; MCHUGH, T. H. Propriedades mecânicas e de barreira de filmes nanocompósitos de quitosana e celulose microcristalina. In: CONGRESSO BRASILEIRO DE ENGENHARIA E CIÊNCIA DOS MATERIAIS - CBECiMat, 18., 2008, Porto de Galinhas, BA. Anais... [S. l.: s. n.], 2008. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Instrumentação. |
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| 12. | | BORTOLIN, A.; AOUADA, F. A.; MOURA, M. R. de; RIBEIRO, C.; LONGO, E.; MATTOSO, L. H. C. Application of polysaccharide hydrogels in adsorption and controlled-extended release of fertilizers processes. Journal of Applied Polymer Science, New York, v. 123, p. 2291-2298, 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Instrumentação. |
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| 13. | | BORTOLIN, A.; AOUADA, F. A.; MOURA, M. R. de; RIBEIRO, C.; LONGO, E.; MATTOSO, L. H. C. Processos de adsorção e liberação controlada e sustentada de fertilizantes a partir de hidrogéis. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 6., 2012, Fortaleza. Anais... São Carlos: Embrapa Instrumentação; Fortaleza: Embrapa Agroindústria Tropical, 2012. p. 318-320. Editores: Maria Alice Martins, MOrsyleide de Freitas Rosa, Men de Sá Moreira de Souza Filho, Nicodemos Moreira dos Santos Junior, Odílio Benedito Garrido de Assis, Caue Ribeiro, Luiz Henrique Capparelli Mattoso.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 14. | | BRITO, D. de; MOURA, M. R de; AOUADA, F. A.; PINOLA, F. G.; LUNDSTEDT, L. M.; ASSIS, O. B. G. de; MATTOSO, L. H. C. Entrapment characteristics of hydrosoluble vitamins loaded into chitosan and N,N,N-Trimethyl chitosan nanoparticles. Macromolecular Research, v. 22, n. 12, p. 1261-1267, 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Pesca e Aquicultura. |
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| 15. | | BRITTO, D. de; AOUADA, F. A.; MOURA, M. R. de; ASSIS, O. B. G. de; MATTOSO, L. H. C. Preparation and Modification of N, N, N-Trimethyl Chitosan Nanoparticles for Food Application In: INTERNATIONAL CONFERENCE ON FOOD AND AGRICULTURE APPLICATIONS OF NANOTECHNOLOGIES - NanoAgri, 2010, São Pedro, SP. [Anais…] São Pedro: Aptor Software, 2010. Editors: Caue Ribeiro, Odílio Benedito Garrido de Assis, Luiz Henrique Capparelli Mattoso, Sérgio Mascarenhas.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 16. | | BRITTO, D. de; MOURA, M. R. de; AOUADA, F. A.; MATTOSO, L. H. C.; ASSIS, O. B. G. Análise térmica e mecânica de filmes de hidroxipropil metilcelulose reforçado com nanopartículas de n,n,n-trimetilquitosana. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 6., 2012, Fortaleza. Anais... São Carlos: Embrapa Instrumentação; Fortaleza: Embrapa Agroindústria Tropical, 2012. p. 288-290. Editores: Maria Alice Martins, MOrsyleide de Freitas Rosa, Men de Sá Moreira de Souza Filho, Nicodemos Moreira dos Santos Junior, Odílio Benedito Garrido de Assis, Caue Ribeiro, Luiz Henrique Capparelli Mattoso.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 17. | | BRITTO, D. de; MOURA, M. R. de; AOUADA, F. A.; MATTOSO, L. H. C.; ASSIS, O. B. G. Nanopartículas de N,N,N-trimetil quitosana como suporte para liberação controlada de vitaminas. II. Análise espectroscópica In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 6., 2012, Fortaleza. Anais... São Carlos: Embrapa Instrumentação; Fortaleza: Embrapa Agroindústria Tropical, 2012. p. 159-161. Editores: Maria Alice Martins, MOrsyleide de Freitas Rosa, Men de Sá Moreira de Souza Filho, Nicodemos Moreira dos Santos Junior, Odílio Benedito Garrido de Assis, Caue Ribeiro, Luiz Henrique Capparelli Mattoso.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 18. | | BRITTO, D. de; MOURA, M. R. de; AOUADA, F. A.; MATTOSO, L. H. C.; ASSIS, O. B. G. Nanopartículas de N,N,N-trimetil quitosana como suporte para liberação controlada de vitaminas. I. Propriedades morfológicas. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 6., 2012, Fortaleza. Anais... São Carlos: Embrapa Instrumentação; Fortaleza: Embrapa Agroindústria Tropical, 2012. p. 156-158. Editores: Maria Alice Martins, MOrsyleide de Freitas Rosa, Men de Sá Moreira de Souza Filho, Nicodemos Moreira dos Santos Junior, Odílio Benedito Garrido de Assis, Caue Ribeiro, Luiz Henrique Capparelli Mattoso.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 19. | | BRITTO, D. de; MOURA, M. R. de; AOUADA, F. A.; MATTOSO, L. H. C.; ASSIS, O. B. G. N,N,N-trimethyl chitosan nanoparticles as a vitamin carrier system. Food Hydrocolloids, Oxford, v. 27, p. 487-493, 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Instrumentação. |
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| 20. | | BRITTO, D. de; MOURA, M. R. de; AOUADA, F. A.; MATTOSO, L. H. C.; ASSIS, O. B. G. de. Characterization of N,N,N-TRIMETHYL CHITOSAN/TPP nanoparticles loaded with vitamin. In: IBEROAMERICAN CHITIN SYMPOSIUM - SIAQ, 6.; INTERNATIONAL CONFERENCE ON CHITIN AND CHITOSAN, 12., 2012, Fortaleza. Abstracts... São Carlos, SP: IQSC/USP, 2012. p. 33.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| Registros recuperados : 107 | |
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