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| 3. |  | SOBRAL, L. F.; SMYTH, J. T.; FAGERIA, N. K.; STONE, L. F. Comparison of copper, manganese, and zinc extraction with Mehlich 1, Mehlich 3, and DTPA solutions for soils of the Brazilian Coastal Tablelands. Communications in Soil Science and Plant Analysis, New York, v. 44, n. 17, p. 2507-2513, 2013.| Biblioteca(s): Embrapa Arroz e Feijão. |
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| Registros recuperados : 3 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
05/08/2013 |
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Data da última atualização: |
31/10/2013 |
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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: |
SOBRAL, L. F.; SMYTH, J. T.; FAGERIA, N. K.; STONE, L. F. |
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Afiliação: |
LAFAYETTE FRANCO SOBRAL, CPATC; J. T. SMYTH, NORTH CAROLINA STATE UNIVERSITY; NAND KUMAR FAGERIA, CNPAF; LUIS FERNANDO STONE, CNPAF. |
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Título: |
Comparison of copper, manganese, and zinc extraction with Mehlich 1, Mehlich 3, and DTPA solutions for soils of the Brazilian Coastal Tablelands. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Communications in Soil Science and Plant Analysis, New York, v. 44, n. 17, p. 2507-2513, 2013. |
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ISSN: |
0010-3624 |
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DOI: |
10.1080/00103624.2013.812731 |
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Idioma: |
Inglês |
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Conteúdo: |
Deficiency of micronutrients is increasing in crop plants in recent years in Oxisols and Ultisols in the tropics. The predominant soils in the coastal tablelands of Brazil are Ultisols and Oxisols, with low cation exchange capacity and kaolinitic clay mineralogy. Soil copper (Cu), manganese (Mn), and zinc (Zn) extracted by the Mehlich 1 solution, currently used in the regional soil-testing laboratories, were compared with those extracted by the Mehlich 3 and diethylenetriaminepentaacetic acid (DTPA) solutions in a greenhouse experiment with 10 soil samples (0-20 cm deep) collected from representative Ultisols and Oxisols from various locations in the region. Corn was grown as a test crop, and its dry matter and micronutrient uptake was measured at 30 days of growth. Soil Cu, Mn, and Zn extracted with the three solutions were significantly correlated (0.65-0.95 range for r values), with the Mehlich 3 solution extracting greater quantities than the Mehlich 1 and DTPA solutions. Zinc and Cu taken up by corn plants were significantly related to their soil-extractable levels measured at harvest with all three of the solutions, except for Zn DTPA. However, similar relations between plant uptake and soil extractable Mn were poor, except for DTPA extracting solution. |
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Thesagro: |
Microelemento; Solo. |
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Thesaurus NAL: |
Plant micronutrients; Soil analysis. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02048naa a2200229 a 4500
001 1963380
005 2013-10-31
008 2013 bl uuuu u00u1 u #d
022 $a0010-3624
024 7 $a10.1080/00103624.2013.812731$2DOI
100 1 $aSOBRAL, L. F.
245 $aComparison of copper, manganese, and zinc extraction with Mehlich 1, Mehlich 3, and DTPA solutions for soils of the Brazilian Coastal Tablelands.$h[electronic resource]
260 $c2013
520 $aDeficiency of micronutrients is increasing in crop plants in recent years in Oxisols and Ultisols in the tropics. The predominant soils in the coastal tablelands of Brazil are Ultisols and Oxisols, with low cation exchange capacity and kaolinitic clay mineralogy. Soil copper (Cu), manganese (Mn), and zinc (Zn) extracted by the Mehlich 1 solution, currently used in the regional soil-testing laboratories, were compared with those extracted by the Mehlich 3 and diethylenetriaminepentaacetic acid (DTPA) solutions in a greenhouse experiment with 10 soil samples (0-20 cm deep) collected from representative Ultisols and Oxisols from various locations in the region. Corn was grown as a test crop, and its dry matter and micronutrient uptake was measured at 30 days of growth. Soil Cu, Mn, and Zn extracted with the three solutions were significantly correlated (0.65-0.95 range for r values), with the Mehlich 3 solution extracting greater quantities than the Mehlich 1 and DTPA solutions. Zinc and Cu taken up by corn plants were significantly related to their soil-extractable levels measured at harvest with all three of the solutions, except for Zn DTPA. However, similar relations between plant uptake and soil extractable Mn were poor, except for DTPA extracting solution.
650 $aPlant micronutrients
650 $aSoil analysis
650 $aMicroelemento
650 $aSolo
700 1 $aSMYTH, J. T.
700 1 $aFAGERIA, N. K.
700 1 $aSTONE, L. F.
773 $tCommunications in Soil Science and Plant Analysis, New York$gv. 44, n. 17, p. 2507-2513, 2013.
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Embrapa Arroz e Feijão (CNPAF) |
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