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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
22/02/2005 |
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Data da última atualização: |
12/05/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
HITSUDA, K.; SFREDO, G. J.; KLEPKER, D. |
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Afiliação: |
JAPAN INTERNATIONAL RESEARCH CENTER FOR AGRICULTURAL SCIENCES; GEDI JORGE SFREDO, CNPSO; DIRCEU KLEPKER, CNPSO. |
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Título: |
Diagnosis of sulfur deficiency in soybean using seeds. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Soil Science Society of America Journal, v. 68, n. 4, p. 1445-1451, July/Ago. 2004. |
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DOI: |
10.2136/sssaj2004.1445 |
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Idioma: |
Inglês |
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Conteúdo: |
The objectives of this study were to obtain a reliable index for the evaluation of the S nutrition status in soybean [Glycine Max (L.) Merr.] and to identify the critical S level in relation to seed yield and quality. Two Oxisols were used: A-horizon soil from Serra dos Gerais, and A- and B-horizon soils from Sambaiba in Maranhão State, Brazil. Soybean plants in pots were grown in a greenhouse with the supply of 0 to 80 mg S kg-1 soil. The seed S concentration was a more reliable index of seed yield because of the higher correlation between S concentration and yield. In the plants with visible symptoms of S deficiency, the seeds contained 1.5 g S kg-1, and the seed yield was 60% of the control. Electrophoresis analysis indicated that the critical seed S concentration for deficiency of protein components was 2.0 g kg-1 when the yield was 80% of the control. The S concentration was 2.3 g kg-1 or higher for >90% yield when the composition of the protein components was identical with that in the original seeds obtained under sufficient S fertilization. We classified the S concentration in the seeds as: deficient (S < 1.5 g kg-1), very low (1.5 S < 2.0 g kg-1), low (2.0 S < 2.3 g kg-1), and normal (2.3 g kg-1 S). Because of stable S concentration, easy sampling, and sufficient time for planning of fertilizer application for the subsequent cropping, seed analysis is preferable to leaf analysis. |
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Thesagro: |
Enxofre; Soja. |
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Thesaurus Nal: |
Soybeans; Sulfur. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 01997naa a2200205 a 4500
001 1467794
005 2025-05-12
008 2004 bl uuuu u00u1 u #d
024 7 $a10.2136/sssaj2004.1445$2DOI
100 1 $aHITSUDA, K.
245 $aDiagnosis of sulfur deficiency in soybean using seeds.$h[electronic resource]
260 $c2004
520 $aThe objectives of this study were to obtain a reliable index for the evaluation of the S nutrition status in soybean [Glycine Max (L.) Merr.] and to identify the critical S level in relation to seed yield and quality. Two Oxisols were used: A-horizon soil from Serra dos Gerais, and A- and B-horizon soils from Sambaiba in Maranhão State, Brazil. Soybean plants in pots were grown in a greenhouse with the supply of 0 to 80 mg S kg-1 soil. The seed S concentration was a more reliable index of seed yield because of the higher correlation between S concentration and yield. In the plants with visible symptoms of S deficiency, the seeds contained 1.5 g S kg-1, and the seed yield was 60% of the control. Electrophoresis analysis indicated that the critical seed S concentration for deficiency of protein components was 2.0 g kg-1 when the yield was 80% of the control. The S concentration was 2.3 g kg-1 or higher for >90% yield when the composition of the protein components was identical with that in the original seeds obtained under sufficient S fertilization. We classified the S concentration in the seeds as: deficient (S < 1.5 g kg-1), very low (1.5 S < 2.0 g kg-1), low (2.0 S < 2.3 g kg-1), and normal (2.3 g kg-1 S). Because of stable S concentration, easy sampling, and sufficient time for planning of fertilizer application for the subsequent cropping, seed analysis is preferable to leaf analysis.
650 $aSoybeans
650 $aSulfur
650 $aEnxofre
650 $aSoja
700 1 $aSFREDO, G. J.
700 1 $aKLEPKER, D.
773 $tSoil Science Society of America Journal$gv. 68, n. 4, p. 1445-1451, July/Ago. 2004.
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Embrapa Soja (CNPSO) |
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