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 | Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
27/06/2017 |
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Data da última atualização: |
27/06/2017 |
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Autoria: |
GIANELLO, C.; AMORIM, M. B. |
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Afiliação: |
Clesio Gianello, UFRGS; MAGNO B. AMORIM, UFRGS. |
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Título: |
Ammonium chloride solution as an alternative laboratory procedure for exchangeable cations in Southern Brazilian soils. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Communications in Soil Science and Plant Analysis, v. 46, p. 94-103, 2015. |
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DOI: |
http://dx.doi.org/10.1080/00103624.2014.988580 |
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Idioma: |
Português |
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Conteúdo: |
Abstract: Most Brazilian soil-testing laboratories use Mehlich 1 and 1.0 M potassium chloride (KCl) solutions as extractants for the determination of phosphorus (P), potassium (K), and sodium (Na) and for exchangeable calcium (Ca), magnesium (Mg), manganese (Mn), and aluminum (Al) in agricultural soil samples. Other laboratories use a combination of exchangeable ionic resin and KCl procedures. With recent adoption of the inductively coupled plasma (ICP-OES) in routine soil-testing laboratories, soil extraction with 1.0 M ammonium chloride (NH4Cl) became an alternative due to the possibility of determining all exchangeable elements in one run (Ca, Mg, K, Mn, Na, and Al), leaving determination of phosphorus (P) with Mehlich 1 or exchangeable ionic resin. To evaluate the performance of the NH4Cl solution, an experiment was carried out with thirty-seven samples of soils representative of the southernmost state of Brazil, Rio Grande do Sul. Four extraction solutions [Mehlich 1 at soil/solution ratio of 1:10 and 1.0 M ammonium acetate (NH4OAc), 1.0 M KCl, and 1.0 M NH4Cl at soil/solution ratio 1:20] were used with three different shaking times (5, 30, and 60 min). Correlation coefficients among all methods were high. Mehlich 1 did not perform well against NH4OAc and NH4Cl, despite the high correlation coefficients, with values consistently lower for K, even when the time of extraction was increased from 5 to 30 or 60 min. However, for concentrations less than 0.30 cmol kg−1 (i.e., in the range of K deficiency), both solutions performed similarly. Calcium and Mg increased with time of shaking. Comparable values of exchangeable Ca, Mg, and K, as well as of Al and Mn, were obtained with 1.0 M NH4Cl with 60 min shaking and the standard procedures of 1.0 M NH4OAc and 1.0 M KCl. The determination of Al by traditional titration/back-titration of the 1.0 M KCl solution gave slightly greater results compared to ICP-OES obtained using extraction with 1.0 M NH4Cl. The results indicate that for Ca, Mg, Mn, and Al, it is possible to replace the traditional 1.0 M KCl extraction with 1.0 M NH4Cl solution, with 60 min shaking time and a soil/solution ratio of 1:20. MenosAbstract: Most Brazilian soil-testing laboratories use Mehlich 1 and 1.0 M potassium chloride (KCl) solutions as extractants for the determination of phosphorus (P), potassium (K), and sodium (Na) and for exchangeable calcium (Ca), magnesium (Mg), manganese (Mn), and aluminum (Al) in agricultural soil samples. Other laboratories use a combination of exchangeable ionic resin and KCl procedures. With recent adoption of the inductively coupled plasma (ICP-OES) in routine soil-testing laboratories, soil extraction with 1.0 M ammonium chloride (NH4Cl) became an alternative due to the possibility of determining all exchangeable elements in one run (Ca, Mg, K, Mn, Na, and Al), leaving determination of phosphorus (P) with Mehlich 1 or exchangeable ionic resin. To evaluate the performance of the NH4Cl solution, an experiment was carried out with thirty-seven samples of soils representative of the southernmost state of Brazil, Rio Grande do Sul. Four extraction solutions [Mehlich 1 at soil/solution ratio of 1:10 and 1.0 M ammonium acetate (NH4OAc), 1.0 M KCl, and 1.0 M NH4Cl at soil/solution ratio 1:20] were used with three different shaking times (5, 30, and 60 min). Correlation coefficients among all methods were high. Mehlich 1 did not perform well against NH4OAc and NH4Cl, despite the high correlation coefficients, with values consistently lower for K, even when the time of extraction was increased from 5 to 30 or 60 min. However, for concentrations less than 0.30 cmol kg−1 ... Mostrar Tudo |
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Palavras-Chave: |
Análise de solo; Brasil; Laboratório de solo; Mehlich 1; Rio Grande do Sul; Solução de extração. |
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Thesagro: |
Cloreto de Potássio. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02954naa a2200229 a 4500
001 2071593
005 2017-06-27
008 2015 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1080/00103624.2014.988580$2DOI
100 1 $aGIANELLO, C.
245 $aAmmonium chloride solution as an alternative laboratory procedure for exchangeable cations in Southern Brazilian soils.$h[electronic resource]
260 $c2015
520 $aAbstract: Most Brazilian soil-testing laboratories use Mehlich 1 and 1.0 M potassium chloride (KCl) solutions as extractants for the determination of phosphorus (P), potassium (K), and sodium (Na) and for exchangeable calcium (Ca), magnesium (Mg), manganese (Mn), and aluminum (Al) in agricultural soil samples. Other laboratories use a combination of exchangeable ionic resin and KCl procedures. With recent adoption of the inductively coupled plasma (ICP-OES) in routine soil-testing laboratories, soil extraction with 1.0 M ammonium chloride (NH4Cl) became an alternative due to the possibility of determining all exchangeable elements in one run (Ca, Mg, K, Mn, Na, and Al), leaving determination of phosphorus (P) with Mehlich 1 or exchangeable ionic resin. To evaluate the performance of the NH4Cl solution, an experiment was carried out with thirty-seven samples of soils representative of the southernmost state of Brazil, Rio Grande do Sul. Four extraction solutions [Mehlich 1 at soil/solution ratio of 1:10 and 1.0 M ammonium acetate (NH4OAc), 1.0 M KCl, and 1.0 M NH4Cl at soil/solution ratio 1:20] were used with three different shaking times (5, 30, and 60 min). Correlation coefficients among all methods were high. Mehlich 1 did not perform well against NH4OAc and NH4Cl, despite the high correlation coefficients, with values consistently lower for K, even when the time of extraction was increased from 5 to 30 or 60 min. However, for concentrations less than 0.30 cmol kg−1 (i.e., in the range of K deficiency), both solutions performed similarly. Calcium and Mg increased with time of shaking. Comparable values of exchangeable Ca, Mg, and K, as well as of Al and Mn, were obtained with 1.0 M NH4Cl with 60 min shaking and the standard procedures of 1.0 M NH4OAc and 1.0 M KCl. The determination of Al by traditional titration/back-titration of the 1.0 M KCl solution gave slightly greater results compared to ICP-OES obtained using extraction with 1.0 M NH4Cl. The results indicate that for Ca, Mg, Mn, and Al, it is possible to replace the traditional 1.0 M KCl extraction with 1.0 M NH4Cl solution, with 60 min shaking time and a soil/solution ratio of 1:20.
650 $aCloreto de Potássio
653 $aAnálise de solo
653 $aBrasil
653 $aLaboratório de solo
653 $aMehlich 1
653 $aRio Grande do Sul
653 $aSolução de extração
700 1 $aAMORIM, M. B.
773 $tCommunications in Soil Science and Plant Analysis$gv. 46, p. 94-103, 2015.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Biblioteca |
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| Registros recuperados : 9 | |
| 1. |  | ROGERI, D. A.; BORTOLON, L.; GIANELLO, C.; AMORIM, M. B. Remaining phosphorus content to determine phosphorus availability of the soils in Rio Grande do Sul. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 52, n. 12, p. 1203-1214, dez. 2017. Título em português: Fósforo remanescente para determinar a disponibilidade de fósforo em solos do Rio Grande do Sul.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Pesca e Aquicultura; Embrapa Unidades Centrais. |
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| 3. | | AMORIM, M. B.; SCHLINDWEIN, J. A.; PEREIRA, E. C. F.; KESTER, A. N.; MARCOLAN, A. L. Doses, modos de aplicação de calcário e índices de acidez do solo para produção de soja e milho na Região da Zona da mata de Rondônia: respostas das plantas às doses e modos de aplicação de calcário em solo cultivado no sistema plantio direto. Revista Pesquisa e Criação, Porto Velho, n. 10, Suplemento especial, p. 509-516, 2011. Edição dos anais do 20. Seminário Final de Iniciação Científica.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Rondônia. |
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| 5. | | KESTER, A. N.; AMORIM, M. B.; LIMA, P. P. de; SILVA, E. D'A. da; SCHLINDWEIN, J. A.; FIORELLI-PEREIRA, E. C.; MARCOLAN, A. L. Produção de grãos de milho e soja submetidos a diferentes doses e modos de incorporação de calcário. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 33., 2011, Uberlândia. Solos nos biomas brasileiros: sustentabilidade e mudanças climáticas. Uberlândia: Sociedade Brasileira de Ciência do Solo, 2011. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Rondônia. |
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| 6. | | MENEZES, I. de S.; SCHWARTZ, G.; FORTALEZA, A. P.; ALBUQUERUQE, G. D. P.; COSTA, R. R. da S.; CARNEIRO, F. da S.; AMORIM, M. B.; ATAÍDE, W. L. da S.; PINHEIRO, K. A. O. Uso alternativo do solo como forma de recuperação de área degradada. Research, Society and Development, v. 11, n. 8, e41511828207, 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: C - 0 |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 7. | | AMORIM, M. B.; KESTER, A. N.; LIMA, P. P. de; BRASILINO, M. F.; COLETA, Q. P.; SCHLINDWEIN, J. A.; FIORELLI-PEREIRA, E. C.; PEQUENO, P. L. de L.; MARCOLAN, A. L. Efeito de doses e modos de aplicação de calcário em latossolo da Zona da Mata de Rondônia. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 32., 2009, Fortaleza. O solo e a produção de bioenergia: perspectivas e desafios. Viçosa, MG: Sociedade Brasileira de Ciência do Solo, 2009. 1 CD ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Rondônia. |
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| 8. | | PINTO, S. C.; LEITÃO, G. G.; BIZZO, H. R.; MARTINEZ, N.; DELLACASSA, E.; SANTOS JUNIOR, F. M. dos; COSTA, F. L. P.; AMORIM, M. B. de; LEITÃO, S. G. (-)-epi-Presilphiperfolan-1-ol, a new triquinane sesquiterpene from the essential oil of Anemia tomentosa var. anthriscifolia (Pteridophyta). Tetrahedron Letters, Maryland Heights, v. 50, n. 33, p. 4785-4787, aug. 2009.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 9. | | JOSEPH-NATHAN, P.; LEITÃO, S. G.; PINTO, S. C.; LEITÃO, G. G.; BIZZO, H. R.; COSTA, F. L. P.; AMORIM, M. B. de; MARTINEZ, N.; DELLACASSA, E.; HERNÁNDEZ-BARRAGÁN, A.; PÉREZ-HERNÁNDEZ, N. Structure reassignment and absolute configuration of 9-epi-presilphiperfolan-1-ol. Tetrahedron Letters, v. 51, n. 15, p. 1963-1965, 2010.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| Registros recuperados : 9 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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