| |
|
|
| Registros recuperados : 2 | |
| 1. |  | TOTIS de ZELJKOVICH, L.; ZELJKOVICH, V.; COCA, M. G.; BLOTTA, L. A.; FUNSTON, L.; RIVOLTELLA, A. Balance del agua del doble cultivo trigo-soja y su relacion con la productividad en la region de Pergamino (R. Argentina). Pergamino: INTA - EEA Pergamino, 1991. 14 p. (INTA - EEA Pergamino. Informe Técnico, 257). Trabalho apresentado no II Congreso Nacional de Trigo, Pergamino, 1990.| Biblioteca(s): Embrapa Trigo. |
|   |
| Registros recuperados : 2 | |
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Soja. |
|
Data corrente: |
22/02/2005 |
|
Data da última atualização: |
30/06/2005 |
|
Autoria: |
HITSUDA, K.; SFREDO, G. J.; KLEPKER, D. |
|
Título: |
Diagnosis of sulfur deficiency in soybean using seeds. |
|
Ano de publicação: |
2004 |
|
Fonte/Imprenta: |
Soil Science Society of America Journal, Madison, v. 68, p.1445-1451, July/Ago. 2004. |
|
Idioma: |
Inglês |
|
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. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 01842naa a2200145 a 4500
001 1467794
005 2005-06-30
008 2004 bl --- 0-- u #d
100 1 $aHITSUDA, K.
245 $aDiagnosis of sulfur deficiency in soybean using seeds.
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.
700 1 $aSFREDO, G. J.
700 1 $aKLEPKER, D.
773 $tSoil Science Society of America Journal, Madison$gv. 68, p.1445-1451, July/Ago. 2004.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Soja (CNPSO) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
