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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados; Embrapa Pantanal. |
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Data corrente: |
25/08/1995 |
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Data da última atualização: |
15/04/1997 |
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Autoria: |
MIRANDA, J. C. C. de; HARRIS, P. J.; WILD, A. |
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Título: |
Effects of soil and plant phosphorus concentration on vesicular - arbuscular mycorrhiza in Sorghum plants. |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
New Phytologist, v.112, p.405-410, 1989. |
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Idioma: |
Inglês |
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Conteúdo: |
The effect of soil and plant phosphorus (P) on mycorrhiza was studied using a aplit-root technique. In this experiment, sorghum (Sorghum bicolor (L.) Moench.) plants inoculated with the vesicular-arbuscular (VA) mycorrhizal fungus Glomus macrocarpum (TUL. & TUL.), were subjected simultaneously to low and high phosphate concentrations applied to a phosphorus deficient Brazilian Dark Red Latosol. Phosphorus was translocated from one half of the roots system to the other. When additions of P were made to the soil, mycorrhizal infection, spore numbers and external hyphae increased compared with the unsupplemented soil. Translocation of phosphorus into roots growing in unsupplemented soil had little effect on percentage root infection, spore number or external...hyphae in that compartment although infected root length increased slightly. In the treatment where soil P and plant P were high, percentage root infection and external hyphal growth were both similarly recuced. In the high phosphate treatments although percentage root infection was reduced, the total length of mycorrhizal root was not affected by phosphate fertilization. |
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Palavras-Chave: |
Brasil; Efeito; Effect; Micorriza vesicular-arbuscular; Mycorrhiza; Plant; Vesicular-arbuscular mycorrhizae. |
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Thesagro: |
Cerrado; Fósforo; Glomus Macrocarpum; Planta; Solo; Sorghum Bicolor; Sorgo. |
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Thesaurus Nal: |
Brazil; phosphorus; soil. |
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Categoria do assunto: |
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Marc: |
LEADER 02041naa a2200349 a 4500
001 1552703
005 1997-04-15
008 1989 bl --- 0-- u #d
100 1 $aMIRANDA, J. C. C. de
245 $aEffects of soil and plant phosphorus concentration on vesicular - arbuscular mycorrhiza in Sorghum plants.
260 $c1989
520 $aThe effect of soil and plant phosphorus (P) on mycorrhiza was studied using a aplit-root technique. In this experiment, sorghum (Sorghum bicolor (L.) Moench.) plants inoculated with the vesicular-arbuscular (VA) mycorrhizal fungus Glomus macrocarpum (TUL. & TUL.), were subjected simultaneously to low and high phosphate concentrations applied to a phosphorus deficient Brazilian Dark Red Latosol. Phosphorus was translocated from one half of the roots system to the other. When additions of P were made to the soil, mycorrhizal infection, spore numbers and external hyphae increased compared with the unsupplemented soil. Translocation of phosphorus into roots growing in unsupplemented soil had little effect on percentage root infection, spore number or external...hyphae in that compartment although infected root length increased slightly. In the treatment where soil P and plant P were high, percentage root infection and external hyphal growth were both similarly recuced. In the high phosphate treatments although percentage root infection was reduced, the total length of mycorrhizal root was not affected by phosphate fertilization.
650 $aBrazil
650 $aphosphorus
650 $asoil
650 $aCerrado
650 $aFósforo
650 $aGlomus Macrocarpum
650 $aPlanta
650 $aSolo
650 $aSorghum Bicolor
650 $aSorgo
653 $aBrasil
653 $aEfeito
653 $aEffect
653 $aMicorriza vesicular-arbuscular
653 $aMycorrhiza
653 $aPlant
653 $aVesicular-arbuscular mycorrhizae
700 1 $aHARRIS, P. J.
700 1 $aWILD, A.
773 $tNew Phytologist$gv.112, p.405-410, 1989.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
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URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
18/01/2016 |
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Data da última atualização: |
25/01/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
SOUZA, C. P. C.; ABREU, C. A.; CUNHA, J. F. da; COSTA, G. M. da; ANDRADE, C. A. de. |
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Afiliação: |
CAMILA PRADO CENCIANI DE SOUZA, IAC; CLEIDE APARECIDA DE ABREU, IAC; JOSE FRANCISCO DA CUNHA, Tec-Fértil; GERLADO MAGELA DA COSTA, UFOP; CRISTIANO ALBERTO DE ANDRADE, CNPMA. |
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Título: |
Phytoavailability of copper in industrial by-products and mineral fertilizers. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, Viçosa, v. 39, n. 2, p. 553-562, 2015. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Alternative copper (Cu) sources could be used in fertilizer production, although the bioavailability of copper in these materials is unknown. The objective of this study was to evaluate the extractants neutral ammonium citrate (NAC), 2 % citric acid, 1 % acetic acid, 10 % HCl, 10 % H2SO4, buffer solution pH 6.0, DTPA, EDTA, water, and hot water in the quantification of available Cu content in several sources, relating them to the relative agronomic efficiency (RAE) of wheat grown in a clayey Latossolo Vermelho eutrófico (Oxisol) and Neossolo Quartzarênico (Typic Quartzipsamment). Copper was applied at the rate of 1.5 mg kg-1 as scrap slag, brass slag, Cu ore, granulated copper, and copper sulfate. The extractants 10 % HCl, 10 % H2SO4, and NAC extracted higher Cu concentrations. The RAE values of brass slag and Cu ore were similar to or higher than those of Cu sulfate and granulated Cu. Solubility in the 2nd NAC extractant, officially required for mineral fertilizers with Cu, was lower than 60 % for the scrap slag, Cu ore, and granulated copper sources. This fact indicates that adoption of the NAC extractant may be ineffective for industrial by-products, although no extractant was more efficient in predicting Cu availability for wheat fertilized with the Cu sources tested. Resumo: Fontes alternativas de cobre (Cu) podem ser opção na produção de fertilizantes, porém a fitodisponibilidade do cobre nesses materiais é desconhecida. O objetivo deste trabalho foi avaliar os extratores citrato neutro de amônio (CNA), ácido cítrico 2 %, ácido acético 1 %, HCl 10 %, H 2 SO 4 10 %, solução tampão pH 6,0, DTPA, EDTA, água e água quente na quantificação do teor de Cu disponível em diversas fontes, confrontando com índices de eficiência agronômica (IEA) para o trigo cultivado em Latossolo Vermelho eutrófico de textura argilosa e em Neossolo Quartzarênico. A dose de Cu aplicada foi 1,5 mg kg -1 como escória de sucata, escória de latão, minério de Cu, cobre granulado e sulfato de cobre. Os extratores HCl 10 %, H 2 SO 4 10 % e CNA extraíram os maiores teores de Cu. A escória de latão e o minério de Cu apresentaram valores de IEA semelhantes ou superiores ao sulfato e cobre granulado. A solubilidade no extrator CNA, exigida oficialmente para fertilizantes minerais contendo Cu, foi inferior a 60 % para as fontes escória de sucata, minério de Cu e Cu granulado. Esse fato indica que a adoção do extrator CNA pode não ser eficiente para materiais secundários, porém nenhum dos extratores evidenciou melhor desempenho na previsão da disponibilidade do Cu para o trigo adubado com as fontes de Cu avaliadas. MenosAbstract: Alternative copper (Cu) sources could be used in fertilizer production, although the bioavailability of copper in these materials is unknown. The objective of this study was to evaluate the extractants neutral ammonium citrate (NAC), 2 % citric acid, 1 % acetic acid, 10 % HCl, 10 % H2SO4, buffer solution pH 6.0, DTPA, EDTA, water, and hot water in the quantification of available Cu content in several sources, relating them to the relative agronomic efficiency (RAE) of wheat grown in a clayey Latossolo Vermelho eutrófico (Oxisol) and Neossolo Quartzarênico (Typic Quartzipsamment). Copper was applied at the rate of 1.5 mg kg-1 as scrap slag, brass slag, Cu ore, granulated copper, and copper sulfate. The extractants 10 % HCl, 10 % H2SO4, and NAC extracted higher Cu concentrations. The RAE values of brass slag and Cu ore were similar to or higher than those of Cu sulfate and granulated Cu. Solubility in the 2nd NAC extractant, officially required for mineral fertilizers with Cu, was lower than 60 % for the scrap slag, Cu ore, and granulated copper sources. This fact indicates that adoption of the NAC extractant may be ineffective for industrial by-products, although no extractant was more efficient in predicting Cu availability for wheat fertilized with the Cu sources tested. Resumo: Fontes alternativas de cobre (Cu) podem ser opção na produção de fertilizantes, porém a fitodisponibilidade do cobre nesses materiais é desconhecida. O objetivo deste trabalho foi avaliar ... Mostrar Tudo |
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Palavras-Chave: |
Difratometria de raios-X; Extrator; Micronutrientes; Micronutrients. |
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Thesagro: |
Cobre; Fertilizante; Resíduo industrial; Trigo; Triticum aestivum. |
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Thesaurus NAL: |
Copper; Extractors; Industrial wastes; Mineral fertilizers; Wheat; X-ray diffraction. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/137212/1/2015AP31.pdf
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Marc: |
LEADER 03659naa a2200349 a 4500
001 2034237
005 2016-01-25
008 2015 bl uuuu u00u1 u #d
100 1 $aSOUZA, C. P. C.
245 $aPhytoavailability of copper in industrial by-products and mineral fertilizers.$h[electronic resource]
260 $c2015
520 $aAbstract: Alternative copper (Cu) sources could be used in fertilizer production, although the bioavailability of copper in these materials is unknown. The objective of this study was to evaluate the extractants neutral ammonium citrate (NAC), 2 % citric acid, 1 % acetic acid, 10 % HCl, 10 % H2SO4, buffer solution pH 6.0, DTPA, EDTA, water, and hot water in the quantification of available Cu content in several sources, relating them to the relative agronomic efficiency (RAE) of wheat grown in a clayey Latossolo Vermelho eutrófico (Oxisol) and Neossolo Quartzarênico (Typic Quartzipsamment). Copper was applied at the rate of 1.5 mg kg-1 as scrap slag, brass slag, Cu ore, granulated copper, and copper sulfate. The extractants 10 % HCl, 10 % H2SO4, and NAC extracted higher Cu concentrations. The RAE values of brass slag and Cu ore were similar to or higher than those of Cu sulfate and granulated Cu. Solubility in the 2nd NAC extractant, officially required for mineral fertilizers with Cu, was lower than 60 % for the scrap slag, Cu ore, and granulated copper sources. This fact indicates that adoption of the NAC extractant may be ineffective for industrial by-products, although no extractant was more efficient in predicting Cu availability for wheat fertilized with the Cu sources tested. Resumo: Fontes alternativas de cobre (Cu) podem ser opção na produção de fertilizantes, porém a fitodisponibilidade do cobre nesses materiais é desconhecida. O objetivo deste trabalho foi avaliar os extratores citrato neutro de amônio (CNA), ácido cítrico 2 %, ácido acético 1 %, HCl 10 %, H 2 SO 4 10 %, solução tampão pH 6,0, DTPA, EDTA, água e água quente na quantificação do teor de Cu disponível em diversas fontes, confrontando com índices de eficiência agronômica (IEA) para o trigo cultivado em Latossolo Vermelho eutrófico de textura argilosa e em Neossolo Quartzarênico. A dose de Cu aplicada foi 1,5 mg kg -1 como escória de sucata, escória de latão, minério de Cu, cobre granulado e sulfato de cobre. Os extratores HCl 10 %, H 2 SO 4 10 % e CNA extraíram os maiores teores de Cu. A escória de latão e o minério de Cu apresentaram valores de IEA semelhantes ou superiores ao sulfato e cobre granulado. A solubilidade no extrator CNA, exigida oficialmente para fertilizantes minerais contendo Cu, foi inferior a 60 % para as fontes escória de sucata, minério de Cu e Cu granulado. Esse fato indica que a adoção do extrator CNA pode não ser eficiente para materiais secundários, porém nenhum dos extratores evidenciou melhor desempenho na previsão da disponibilidade do Cu para o trigo adubado com as fontes de Cu avaliadas.
650 $aCopper
650 $aExtractors
650 $aIndustrial wastes
650 $aMineral fertilizers
650 $aWheat
650 $aX-ray diffraction
650 $aCobre
650 $aFertilizante
650 $aResíduo industrial
650 $aTrigo
650 $aTriticum aestivum
653 $aDifratometria de raios-X
653 $aExtrator
653 $aMicronutrientes
653 $aMicronutrients
700 1 $aABREU, C. A.
700 1 $aCUNHA, J. F. da
700 1 $aCOSTA, G. M. da
700 1 $aANDRADE, C. A. de
773 $tRevista Brasileira de Ciência do Solo, Viçosa$gv. 39, n. 2, p. 553-562, 2015.
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Embrapa Meio Ambiente (CNPMA) |
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