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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
01/08/1992 |
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Data da última atualização: |
25/07/2023 |
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Autoria: |
SALINAS, J. G.; SANS, J. I.; SIEVERDING, E. |
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Título: |
Importance of VA mycorrhizae for phosphorus supply to pasture plants in tropical oxisols. |
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Ano de publicação: |
1985 |
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Fonte/Imprenta: |
Plant and Soil, v. 84, n. 3, p. 347-360, 1985. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Inoculum of the VA mycorrhizal fungusGlomus manihotis was added to an Oxisol containing only a moderate inoculum potential of indigenous VA mycorrhizal fungi. Its effect on growth and P uptake of two pasture plant species was investigated in pot experiments. This effect was studied at a range of P applications, corresponding to 0, 9, 18, 35, 70 and 140 kg P/ha. The plant species used were the grassAndropogon gayanus and the legumePueraria phaseoloides, which were harvested four times,viz. at 70, 100, 130 and 160 days after planting. At first harvest, in the non-inoculated treatments, the first notable response to P application was found with 35 and 70 kg P/ha applied. Addition of inoculum resulted in growth response even at the lowest P application with both plant species. With successive harvests growth response to P application and inoculation disappeared rapidly. However, inoculation resulted in early and extensive development of mycorrhiza, in longer continued P uptake of plants and in a 2 to 4 times higher utilization of added P with both plant species. In the case of no inoculum being added a negative effect of medium and high P applications on mycorrhiza was found in the grass, but not in the legume. In both species the frequency of mycorrhiza increased with time. The slight negative growth response of both plants to the smallest P dressing (9 kg/ha) when no inoculum was applied could be related to the high level of sporulation of indigenous mycorrhizal fungi. MenosAbstract: Inoculum of the VA mycorrhizal fungusGlomus manihotis was added to an Oxisol containing only a moderate inoculum potential of indigenous VA mycorrhizal fungi. Its effect on growth and P uptake of two pasture plant species was investigated in pot experiments. This effect was studied at a range of P applications, corresponding to 0, 9, 18, 35, 70 and 140 kg P/ha. The plant species used were the grassAndropogon gayanus and the legumePueraria phaseoloides, which were harvested four times,viz. at 70, 100, 130 and 160 days after planting. At first harvest, in the non-inoculated treatments, the first notable response to P application was found with 35 and 70 kg P/ha applied. Addition of inoculum resulted in growth response even at the lowest P application with both plant species. With successive harvests growth response to P application and inoculation disappeared rapidly. However, inoculation resulted in early and extensive development of mycorrhiza, in longer continued P uptake of plants and in a 2 to 4 times higher utilization of added P with both plant species. In the case of no inoculum being added a negative effect of medium and high P applications on mycorrhiza was found in the grass, but not in the legume. In both species the frequency of mycorrhiza increased with time. The slight negative growth response of both plants to the smallest P dressing (9 kg/ha) when no inoculum was applied could be related to the high level of sporulation of indigenous mycorrhizal fung... Mostrar Tudo |
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Palavras-Chave: |
Glomus manihotis; Introducao. |
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Thesagro: |
Andropogon Gayanus; Fertilizante; Fósforo; Micorriza; Pastagem; Pueraria Phaseoloides. |
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Thesaurus Nal: |
Glomus; Mycorrhizae; Pastures; Plant nutrition. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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| Registros recuperados : 20 | |
| 17. |  | BOOCK, A.; ARAUJO, M. R.; POTT, A.; PESSOTI, J. E.; SILVA, M. P. da; POTT, V. J.; SOUZA, O. C. de. Estrategia de ocupacao e uso das pastagens nativas do Pantanal do Nabileque em Mato Grosso do Sul. In: PUIGNAU, J.P., ed. Utilization y manejo de pastizales. Montevideo: IICA-PROCISUR, 1994, p.135-158. (IICA-PROCISUR. Dialogo, 40).| Biblioteca(s): Embrapa Pantanal. |
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| 18. | | CEZAR, I. M.; CORRÊA, E. S.; COSTA, F. P.; SOUZA, O. C de; MAURO, R.; SILVA, M. P. da; POTT, A. A realidade bioeconômica da pecuária de corte: o caso do médio pecuarista de Mato Grosso do Sul. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 41., 2004, Campo Grande, MS. A produção animal e a segurança alimentar: anais dos simpósios e dos resumos. Campo Grande, MS: Sociedade Brasileira de Zootecnia: Embrapa Gado de Corte, 2004. 5 p. SIS 033. 1 CD-ROM. CNPGC.| Biblioteca(s): Embrapa Gado de Corte. |
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| 19. | | SIMÕES, M.; COUTINHO, H. L. da C.; RAMALHO FILHO, A.; MANZATTO, C. V.; SOUZA, O. C. de; ARAUJO, M. R.; CHAUKE, C.; VIEIRA, L. M.; PADOVANI, C. R.; CERDEIRA, A. L.; GOMES, M. A. F. Monitoramento dos impactos ambientais de atividades agropecuárias na bacia hidrográfica do Rio Taquari, Pantanal: instrumento de gestão ambiental. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 27., 1999, Brasília, DF. Resumos [...]. Planaltina, DF: Embrapa Cerrados, 1999. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente; Embrapa Solos. |
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| 20. | | CEZAR, I. M.; CORRÊA, E. S.; COSTA, F. P.; SOUZA; O. C. de; AMARAL, T. B.; PORTO, J. C. A; SILVA, M. P. da; MAURO, R. A.; POTT, A.; MACEDO, M. C. M. A realidade bioeconômica do médio pecuarista: um estudo de caso em Mato Grosso do Sul. Campo Grande, MS: Embrapa Gado de Corte, 2005. 49 p. (Embrapa Gado de Corte. Documentos, 154).| Biblioteca(s): Embrapa Gado de Corte. |
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| Registros recuperados : 20 | |
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