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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
31/10/1994 |
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Data da última atualização: |
25/06/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FAGERIA, N. K. |
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Afiliação: |
NAND KUMAR FAGERIA, CNPAF. |
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Título: |
Response of cowpea to phosphorus on an oxisol with special reference to dry matter production and mineral ion contents. |
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Ano de publicação: |
1991 |
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Fonte/Imprenta: |
Tropical Agriculture, v. 68, n. 4, p. 384-388, 1991. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this investigation was to evaluate the effects of P fertilization on growth, yield and nutrient uptake pattems in cowpea. Phosphorus application significantly increased growth, yield and yield components. The critical soil-applied P leveI was 160 mg kg-1 of soil for seed yield and 142-150 mg P kg-1 of soil for yield components. The criticallevel of soil P extracted for seed yield was 40 mg kg-1 of soil and the plant tissue critical level was 0.13% at harvest. Analyses of nutrient distributions in different plant parts showed that cowpea roots retained maximum Fe and minimum K and Ca. Tops retained maximum Ca, almost 50% of P, K and Mg and 65% of Mn; large amounts of P, K, Zn and Cu were translocated to seeds. Pod husks contained a high leveI of Mg and Cu. Phosphorus fertilization decreased the concentrations of K, Zn and Cu in plant tops. Magnesium concentration was increased with P fertilization; Ca and Fe concentrations were unaffected. |
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Palavras-Chave: |
Caupi. |
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Thesagro: |
Fósforo; Oxisol; Solo; Vigna Unguiculata. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 01490naa a2200181 a 4500
001 1197886
005 2020-06-25
008 1991 bl uuuu u00u1 u #d
100 1 $aFAGERIA, N. K.
245 $aResponse of cowpea to phosphorus on an oxisol with special reference to dry matter production and mineral ion contents.
260 $c1991
520 $aThe objective of this investigation was to evaluate the effects of P fertilization on growth, yield and nutrient uptake pattems in cowpea. Phosphorus application significantly increased growth, yield and yield components. The critical soil-applied P leveI was 160 mg kg-1 of soil for seed yield and 142-150 mg P kg-1 of soil for yield components. The criticallevel of soil P extracted for seed yield was 40 mg kg-1 of soil and the plant tissue critical level was 0.13% at harvest. Analyses of nutrient distributions in different plant parts showed that cowpea roots retained maximum Fe and minimum K and Ca. Tops retained maximum Ca, almost 50% of P, K and Mg and 65% of Mn; large amounts of P, K, Zn and Cu were translocated to seeds. Pod husks contained a high leveI of Mg and Cu. Phosphorus fertilization decreased the concentrations of K, Zn and Cu in plant tops. Magnesium concentration was increased with P fertilization; Ca and Fe concentrations were unaffected.
650 $aFósforo
650 $aOxisol
650 $aSolo
650 $aVigna Unguiculata
653 $aCaupi
773 $tTropical Agriculture$gv. 68, n. 4, p. 384-388, 1991.
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Embrapa Arroz e Feijão (CNPAF) |
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| 1. |  | DUENHAS, L. H.; PINTO, J. M.; GOMES, T. C. de A.; MENDES, G. C.; PEREIRA JÚNIOR, R. C. Efeitos da aplicação de biofertilizantes, substâncias húmicas e esterco em um argissolo acinzentado cultivado com melão. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 30., 2005, Recife. Anais... Recife: SBCS: Embrapa Solos/UEP Recife: UFRPE, 2005. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
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