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| Registros recuperados : 106 | |
| Registros recuperados : 106 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
08/02/1999 |
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Data da última atualização: |
19/03/2018 |
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Autoria: |
VIEIRA, R. F.; CARDOSO, E. J. B. N; VIEIRA, C.; CASSINI, S. T. A. |
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Afiliação: |
ROSANA FARIA VIEIRA, CNPMA; CNPMA. |
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Título: |
Foliar application of molybdenum in common beans. I. Nitrogenase and reductase activities in a soil of high fertility. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
Journal of Plant Nutrition, v.21, n.1, p.169-180, 1998. |
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Idioma: |
Inglês |
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Conteúdo: |
Although common bean (Phaseolus vulgaris L.) has a good potential for N2 fixation, poor nodulation following inoculation, principally under field conditions, has led to increased nitrogen (N) fertilizer use in this crop. In the face of the negative environmental effects of N fertilizer, alternative methods have been studied to minimize the amount to be applied. In this sense, foliar application of molybdenum (Mo) has been cited as a promising method. Several papers show that high bean yields (1,500-2,500 kg ha-2), may be obtained in the southeastern region of Brazil, when there is an application of N as side dressing or Mo spray 25 days after plant emergence. A field experiment was carried out to verify the effect of Mo foliar application on nitrogenase and nitrate reductase activities and on bean yield. Treatments included Rhizobium inoculation (with and without), foliar application of Mo (0 and 40 g ha-1), N at planting (0 and 20 kg ha-1) and N applied as side dressing (0 and 30 kg ha-1). Molybdenum and N as side dressing were used 25 days after plant emergence. Molybdenum increased greatly the nitrogenase activity and extended the period of high nitrate reductase activity, with a consequent increase in total shoot N. Increase of nitrogenase activity did not depend on inoculation, showing that soil native rhizobia may increase in effectiveness when appropriately handled. Bean yield did not differ significantly when fertilized with either Mo or N as side dressing. |
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Palavras-Chave: |
Macronutrients; Micronutrients; Plant emergence; Productivity; Rhizobia. |
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Thesagro: |
Phaseolus Vulgaris. |
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Thesaurus NAL: |
absorption; fertilizers; nitrogen fixation. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02278naa a2200265 a 4500
001 1013090
005 2018-03-19
008 1998 bl uuuu u00u1 u #d
100 1 $aVIEIRA, R. F.
245 $aFoliar application of molybdenum in common beans. I. Nitrogenase and reductase activities in a soil of high fertility.$h[electronic resource]
260 $c1998
520 $aAlthough common bean (Phaseolus vulgaris L.) has a good potential for N2 fixation, poor nodulation following inoculation, principally under field conditions, has led to increased nitrogen (N) fertilizer use in this crop. In the face of the negative environmental effects of N fertilizer, alternative methods have been studied to minimize the amount to be applied. In this sense, foliar application of molybdenum (Mo) has been cited as a promising method. Several papers show that high bean yields (1,500-2,500 kg ha-2), may be obtained in the southeastern region of Brazil, when there is an application of N as side dressing or Mo spray 25 days after plant emergence. A field experiment was carried out to verify the effect of Mo foliar application on nitrogenase and nitrate reductase activities and on bean yield. Treatments included Rhizobium inoculation (with and without), foliar application of Mo (0 and 40 g ha-1), N at planting (0 and 20 kg ha-1) and N applied as side dressing (0 and 30 kg ha-1). Molybdenum and N as side dressing were used 25 days after plant emergence. Molybdenum increased greatly the nitrogenase activity and extended the period of high nitrate reductase activity, with a consequent increase in total shoot N. Increase of nitrogenase activity did not depend on inoculation, showing that soil native rhizobia may increase in effectiveness when appropriately handled. Bean yield did not differ significantly when fertilized with either Mo or N as side dressing.
650 $aabsorption
650 $afertilizers
650 $anitrogen fixation
650 $aPhaseolus Vulgaris
653 $aMacronutrients
653 $aMicronutrients
653 $aPlant emergence
653 $aProductivity
653 $aRhizobia
700 1 $aCARDOSO, E. J. B. N
700 1 $aVIEIRA, C.
700 1 $aCASSINI, S. T. A.
773 $tJournal of Plant Nutrition$gv.21, n.1, p.169-180, 1998.
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