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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
08/12/2009 |
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Data da última atualização: |
24/06/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA NETO, W. de; MUNIZ, A. S.; SILVA, M. A. G.; CASTRO, C. de; BORKERT, C. M. |
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Afiliação: |
WALDEMAR DE OLIVEIRA NETO, CNPSO; ANTÔNIO SARAIVA MUNIZ, UEM; MARIA ANITA GONÇALVES DA SILVA, UEM; CESAR DE CASTRO, CNPSO; CLOVIS MANUEL BORKERT, CNPSO. |
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Título: |
Boron extraction and vertical mobility in Paraná State oxisol, Brazil. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, Viçosa, v. 33, n. 5, p. 1259-1267, set./out. 2009. |
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Idioma: |
Inglês |
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Conteúdo: |
The deficiency or excess of micronutrients has been determined by analyses of soil and plant tissue. In Brazil, the lack of studies that would define and standardize extraction and determination methods, as well as lack of correlation and calibration studies, makes it difficult to establish limits of concentration classes for analysis interpretation and fertilizer recommendations for crops. A specific extractor for soil analysis is sometimes chosen due to the ease of use in the laboratory and not in view of its efficiency in determining a bioavailable nutrient. The objectives of this study were to: (a) evaluate B concentrations in the soil as related to the fertilizer rate, soil depth and extractor; (b) verify the nutrient movement in the soil profile; (c) evaluate efficiency of Hot Water, Mehlich-1 and Mehlich-3 as available B extractors, using sunflower as test plant. The experimental design consisted of complete randomized blocks with four replications and treatments of five B rates (0, 2, 4, 6, and 8 kg ha-1) applied to the soil surface and evaluated at six depths (0?0.05, 0.05?0.10, 0.10?0.15, 0.15?0.20, 0.20?0.30, and 0.30?0.40 m). Boron concentrations in the soil extracted by Hot Water, Mehlich-1 and Mehlich-3 extractors increased linearly in relation to B rates at all depths evaluated, indicatingB mobility in the profile. The extractors had different B extraction capacities, but were all efficient to evaluate bioavailability of the nutrient to sunflower. M |
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Palavras-Chave: |
Micronutrientes. |
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Thesagro: |
Boro; Solo. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02100naa a2200205 a 4500
001 1577483
005 2024-06-24
008 2009 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA NETO, W. de
245 $aBoron extraction and vertical mobility in Paraná State oxisol, Brazil.$h[electronic resource]
260 $c2009
520 $aThe deficiency or excess of micronutrients has been determined by analyses of soil and plant tissue. In Brazil, the lack of studies that would define and standardize extraction and determination methods, as well as lack of correlation and calibration studies, makes it difficult to establish limits of concentration classes for analysis interpretation and fertilizer recommendations for crops. A specific extractor for soil analysis is sometimes chosen due to the ease of use in the laboratory and not in view of its efficiency in determining a bioavailable nutrient. The objectives of this study were to: (a) evaluate B concentrations in the soil as related to the fertilizer rate, soil depth and extractor; (b) verify the nutrient movement in the soil profile; (c) evaluate efficiency of Hot Water, Mehlich-1 and Mehlich-3 as available B extractors, using sunflower as test plant. The experimental design consisted of complete randomized blocks with four replications and treatments of five B rates (0, 2, 4, 6, and 8 kg ha-1) applied to the soil surface and evaluated at six depths (0?0.05, 0.05?0.10, 0.10?0.15, 0.15?0.20, 0.20?0.30, and 0.30?0.40 m). Boron concentrations in the soil extracted by Hot Water, Mehlich-1 and Mehlich-3 extractors increased linearly in relation to B rates at all depths evaluated, indicatingB mobility in the profile. The extractors had different B extraction capacities, but were all efficient to evaluate bioavailability of the nutrient to sunflower. M
650 $aBoro
650 $aSolo
653 $aMicronutrientes
700 1 $aMUNIZ, A. S.
700 1 $aSILVA, M. A. G.
700 1 $aCASTRO, C. de
700 1 $aBORKERT, C. M.
773 $tRevista Brasileira de Ciência do Solo, Viçosa$gv. 33, n. 5, p. 1259-1267, set./out. 2009.
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| 5. |  | KOURI, J.; SANTOS, R. F. dos. Aspectos Económicos. In: SEVERINO, L. S.; MILANI, M.; BELTRÃO, N. E. de M. Ricino : el productor pregunta, la Embrapa responde. Brasília, DF : Embrapa Información Tecnológica, 2007. p. 183-202 (Colección 500 preguntas, 500 respuestas).| Tipo: Capítulo em Livro Técnico-Científico | Circulação/Nível: -- - -- |
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