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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: |
08/03/2016 |
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Data da última atualização: |
08/03/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MOREIRA, A.; MORAES, L. A. C.; FAGERIA, N. K. |
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Afiliação: |
ADONIS MOREIRA, CNPSO; LARISSA ALEXANDRA CARDOSO MORAES, CNPSO; NAND KUMAR FAGERIA, CNPAF. |
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Título: |
Zinc and amino-acids on the yield and nutritional state of alfalfa grown in the tropical soil. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Journal of Plant Nutrition, New York, v. 38, n. 5, p. 780-794, 2015. |
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DOI: |
10.1080/01904167.2014.944710 |
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Idioma: |
Inglês |
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Conteúdo: |
Zinc (Zn) deficiency is common among crops grown in the tropics in acid and weathered soils. In response, the use of amino-acids (AAs) to increase the uptake of this nutrient has been increasing dramatically in recent years. Nevertheless, there is a scarcity of results reported on the effect of applying AAs and adequate quantities of Zn on alfalfa grown under tropical edaphoclimatic conditions. Therefore, a greenhouse experiment was conducted with a completely randomized block in a factorial scheme (4×2) of four Zn rates of 0, 4, 8, and 16 mg kg−1) with and without spraying of AAs during the sprouting phase, to study the effects on the shoot dry weight (SDW) yield, nutritional state, physiological parameters, and soil fertility. The harvests were repeated over time (three cuts). The SDW yield was significantly influenced up to a rate of 4.0 mg kg−1 of Zn, after which it stabilized. Independent of the Zn rate, the application of AAs did not influence the SDW yield. Based on the averages for the three cuts, only the Zn rates altered the photosynthesis and chlorophyll content, with no effect of the AAs. The concentrations of Zn in the soil extracted by the Mehlich 1 and diethylenetraminepenta acetic acid (DTPA)- triethanolamine (TEA) methods were strongly and significantly correlated (r = 0.99, P ≤ 0.05) with the Zn rates and the Zn concentrations in the plant tissue. The agronomic, physiological, and zinc use efficiencies diminished with increased Zn rates, while the inverse occurred with the Zn efficiency index. MenosZinc (Zn) deficiency is common among crops grown in the tropics in acid and weathered soils. In response, the use of amino-acids (AAs) to increase the uptake of this nutrient has been increasing dramatically in recent years. Nevertheless, there is a scarcity of results reported on the effect of applying AAs and adequate quantities of Zn on alfalfa grown under tropical edaphoclimatic conditions. Therefore, a greenhouse experiment was conducted with a completely randomized block in a factorial scheme (4×2) of four Zn rates of 0, 4, 8, and 16 mg kg−1) with and without spraying of AAs during the sprouting phase, to study the effects on the shoot dry weight (SDW) yield, nutritional state, physiological parameters, and soil fertility. The harvests were repeated over time (three cuts). The SDW yield was significantly influenced up to a rate of 4.0 mg kg−1 of Zn, after which it stabilized. Independent of the Zn rate, the application of AAs did not influence the SDW yield. Based on the averages for the three cuts, only the Zn rates altered the photosynthesis and chlorophyll content, with no effect of the AAs. The concentrations of Zn in the soil extracted by the Mehlich 1 and diethylenetraminepenta acetic acid (DTPA)- triethanolamine (TEA) methods were strongly and significantly correlated (r = 0.99, P ≤ 0.05) with the Zn rates and the Zn concentrations in the plant tissue. The agronomic, physiological, and zinc use efficiencies diminished with increased Zn rates, w... Mostrar Tudo |
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Thesagro: |
Alfafa; Aminoacido; Manejo do solo; Medicago sativa; Zinco. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02211naa a2200217 a 4500
001 2039980
005 2016-03-08
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1080/01904167.2014.944710$2DOI
100 1 $aMOREIRA, A.
245 $aZinc and amino-acids on the yield and nutritional state of alfalfa grown in the tropical soil.$h[electronic resource]
260 $c2015
520 $aZinc (Zn) deficiency is common among crops grown in the tropics in acid and weathered soils. In response, the use of amino-acids (AAs) to increase the uptake of this nutrient has been increasing dramatically in recent years. Nevertheless, there is a scarcity of results reported on the effect of applying AAs and adequate quantities of Zn on alfalfa grown under tropical edaphoclimatic conditions. Therefore, a greenhouse experiment was conducted with a completely randomized block in a factorial scheme (4×2) of four Zn rates of 0, 4, 8, and 16 mg kg−1) with and without spraying of AAs during the sprouting phase, to study the effects on the shoot dry weight (SDW) yield, nutritional state, physiological parameters, and soil fertility. The harvests were repeated over time (three cuts). The SDW yield was significantly influenced up to a rate of 4.0 mg kg−1 of Zn, after which it stabilized. Independent of the Zn rate, the application of AAs did not influence the SDW yield. Based on the averages for the three cuts, only the Zn rates altered the photosynthesis and chlorophyll content, with no effect of the AAs. The concentrations of Zn in the soil extracted by the Mehlich 1 and diethylenetraminepenta acetic acid (DTPA)- triethanolamine (TEA) methods were strongly and significantly correlated (r = 0.99, P ≤ 0.05) with the Zn rates and the Zn concentrations in the plant tissue. The agronomic, physiological, and zinc use efficiencies diminished with increased Zn rates, while the inverse occurred with the Zn efficiency index.
650 $aAlfafa
650 $aAminoacido
650 $aManejo do solo
650 $aMedicago sativa
650 $aZinco
700 1 $aMORAES, L. A. C.
700 1 $aFAGERIA, N. K.
773 $tJournal of Plant Nutrition, New York$gv. 38, n. 5, p. 780-794, 2015.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Corte; Embrapa Pantanal. |
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Data corrente: |
27/11/2020 |
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Data da última atualização: |
27/11/2020 |
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Tipo da produção científica: |
Folder/Folheto/Cartilha |
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Autoria: |
DIAS, F. R. T.; MALAFAIA, G. C.; BISCOLA, P. H. N. |
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Afiliação: |
FERNANDO RODRIGUES TEIXEIRA DIAS, CPAP; GUILHERME CUNHA MALAFAIA, CNPGC; PAULO HENRIQUE NOGUEIRA BISCOLA, CNPGC. |
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Título: |
Gestão pecuária e desafios futuros. |
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Complemento do título: |
Análise da semana de 14 a 20 de novembro. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Campo Grande, MS: Embrapa Gado de Corte, 2020. |
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Idioma: |
Português |
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Notas: |
Boletim Cicarne. |
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Thesagro: |
Pecuária. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/218314/1/Boletim-CiCarne-32.pdf
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Marc: |
LEADER 00417nam a2200145 a 4500
001 2127142
005 2020-11-27
008 2020 bl uuuu u0uu1 u #d
100 1 $aDIAS, F. R. T.
245 $aGestão pecuária e desafios futuros.$h[electronic resource]
260 $aCampo Grande, MS: Embrapa Gado de Corte$c2020
500 $aBoletim Cicarne.
650 $aPecuária
700 1 $aMALAFAIA, G. C.
700 1 $aBISCOLA, P. H. N.
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Embrapa Gado de Corte (CNPGC) |
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