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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Unidades Centrais. |
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Data corrente: |
16/02/2007 |
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Data da última atualização: |
13/01/2010 |
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Autoria: |
DRECHSEL, M. M.; BALDANI, V. L. D. |
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Título: |
Métodos de desinfestação superficial para obtenção de sementes de milho livres de microrganismos. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Seropédica: Embrapa Agrobiologia, 2006. |
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Páginas: |
16 p. |
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Série: |
(Embrapa Agrobiologia. Documentos, 212). |
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ISSN: |
1517-8498 |
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Idioma: |
Português |
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Conteúdo: |
Aborda a avaliação de métodos de desinfestação superficial de sementes de milho visando a obtenção de sementes livres de microganismos. Sementes livres de mirganismos são importantes em estudos conduzidos em laboratórios onde se pretende avaliar o efeito de bacterias benéficas, como por exemplo as diazotróficas, no desenvolvimento das plantas. Neste estudo foram avaliados 6 métodos de desinfestação em diferentes variedades de milho cujos resultados mostraram que a eficiência do método varia com a variedade de milho e com a presença de fungicidas nas sementes. Alguns métodos promoveram inclusive a inibição da germinação das sementes. Portanto, deve-se realizar experimentos prévios para determinar o melhor método de desinfestação de sementes de milho. |
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Palavras-Chave: |
Maize. |
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Thesagro: |
Microrganismo; Milho. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CNPAB-2010/33984/1/doc212.pdf
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Marc: |
LEADER 01345nam a2200193 a 4500
001 1629227
005 2010-01-13
008 2006 bl uuuu u0uu1 u #d
022 $a1517-8498
100 1 $aDRECHSEL, M. M.
245 $aMétodos de desinfestação superficial para obtenção de sementes de milho livres de microrganismos.
260 $aSeropédica: Embrapa Agrobiologia$c2006
300 $a16 p.
490 $a(Embrapa Agrobiologia. Documentos, 212).
520 $aAborda a avaliação de métodos de desinfestação superficial de sementes de milho visando a obtenção de sementes livres de microganismos. Sementes livres de mirganismos são importantes em estudos conduzidos em laboratórios onde se pretende avaliar o efeito de bacterias benéficas, como por exemplo as diazotróficas, no desenvolvimento das plantas. Neste estudo foram avaliados 6 métodos de desinfestação em diferentes variedades de milho cujos resultados mostraram que a eficiência do método varia com a variedade de milho e com a presença de fungicidas nas sementes. Alguns métodos promoveram inclusive a inibição da germinação das sementes. Portanto, deve-se realizar experimentos prévios para determinar o melhor método de desinfestação de sementes de milho.
650 $aMicrorganismo
650 $aMilho
653 $aMaize
700 1 $aBALDANI, V. L. D.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Florestas; Embrapa Soja. |
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Data corrente: |
06/01/2023 |
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Data da última atualização: |
19/03/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
FOLONI, J. S. S.; SILVA, S. R.; ABATI, J.; OLIVEIRA JUNIOR, A. de; CASTRO, C. de; OLIVEIRA, F. A. de; NOGUEIRA, M. A.; BASSOI, M. C. |
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Afiliação: |
JOSE SALVADOR SIMONETTO FOLONI, CNPSO; SERGIO RICARDO SILVA, CNPF; JULIA ABATI; ADILSON DE OLIVEIRA JUNIOR, CNPSO; CESAR DE CASTRO, CNPSO; FABIO ALVARES DE OLIVEIRA, CNPSO; MARCO ANTONIO NOGUEIRA, CNPSO; MANOEL CARLOS BASSOI, CNPSO. |
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Título: |
Yield of soybean-wheat succession in no-tillage system and soil chemical properties affected by liming, aluminum tolerance of wheat cultivars, and nitrogen fertilization. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Soil & Tillage Research, v. 226, 105576, 2023. |
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Páginas: |
14 p. |
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DOI: |
10.1016/j.still.2022.105576 |
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Idioma: |
Inglês |
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Conteúdo: |
Subsurface soil acidity and nitrogen (N) shortage are challenging for wheat (Triticum aestivum L.) and soybean
(Glycine max L.) crops under no-tillage system. The aim of this study was to evaluate the yield of soybean-wheat
succession in no-tillage system and soil chemical properties affected by liming, aluminum (Al) tolerance of wheat
cultivar (WC), and N fertilization in southern Brazil. A 2 × 2 × 4 factorial arrangement was used: two liming
rates (0 and 2 Mg ha− 1 – applied at the beginning of trial installation), two WC (CD 150: Al-sensitive; and BRS
Gralha-Azul: Al-tolerant), and four N rates (0, 40, 80, and 120 kg ha− 1 N as NH4NO3, applied annually to wheat).
Soil chemical analysis (at 0.00–0.10, 0.10–0.20, and 0.20–0.40 m layers) including pH, H+Al, Al3+, P, K+, Ca2+,
Mg2+, soil organic matter (SOM), and base saturation (V) were performed 24 months after liming, in addition to
evaluation of wheat and soybean grain yields at each growth season. Liming increased Ca2+, Mg2+, and V up to
0.40 m depth; increased pH and decreased H+Al only at the topsoil; and had no effect on K+, P, and SOM.
Compared with Al-sensitive WC, Al-tolerant WC decreased Al3+ up to 0.40 m soil depth. Al-sensitive WC pre-
ceding soybean decreased the relative soybean grain yield, particularly without liming, regardless of the N rates.
Nitrogen fertilization decreased K+ at 0.00–0.10 and 0.10–0.20 m soil layers, and Mg2+ at topsoil (without
liming), increased Al3+ at all soil layers, but did not change soil pH. There were several interactive effects be-
tween liming, WC, and N rates. For instance, the increase of Al3+ due to N fertilization was intensified when
combined with no lime application or with Al-sensitive WC. Despite soybean crop being generally non-responsive
to N fertilization, N rates applied to the previous wheat crop increased soybean yield in the first two crop seasons.
The different pattern of response related to soil properties is mainly attributed to the particular mobility or
solubility of each element into the soil, which is influenced by the soil pH, accompanying anion during leaching
process, among other factors. The role of genotype tolerance to acidic soils as complementary strategy to liming
brings benefits to the agricultural system by improving the soil chemical quality. MenosSubsurface soil acidity and nitrogen (N) shortage are challenging for wheat (Triticum aestivum L.) and soybean
(Glycine max L.) crops under no-tillage system. The aim of this study was to evaluate the yield of soybean-wheat
succession in no-tillage system and soil chemical properties affected by liming, aluminum (Al) tolerance of wheat
cultivar (WC), and N fertilization in southern Brazil. A 2 × 2 × 4 factorial arrangement was used: two liming
rates (0 and 2 Mg ha− 1 – applied at the beginning of trial installation), two WC (CD 150: Al-sensitive; and BRS
Gralha-Azul: Al-tolerant), and four N rates (0, 40, 80, and 120 kg ha− 1 N as NH4NO3, applied annually to wheat).
Soil chemical analysis (at 0.00–0.10, 0.10–0.20, and 0.20–0.40 m layers) including pH, H+Al, Al3+, P, K+, Ca2+,
Mg2+, soil organic matter (SOM), and base saturation (V) were performed 24 months after liming, in addition to
evaluation of wheat and soybean grain yields at each growth season. Liming increased Ca2+, Mg2+, and V up to
0.40 m depth; increased pH and decreased H+Al only at the topsoil; and had no effect on K+, P, and SOM.
Compared with Al-sensitive WC, Al-tolerant WC decreased Al3+ up to 0.40 m soil depth. Al-sensitive WC pre-
ceding soybean decreased the relative soybean grain yield, particularly without liming, regardless of the N rates.
Nitrogen fertilization decreased K+ at 0.00–0.10 and 0.10–0.20 m soil layers, and Mg2+ at topsoil (without
liming), increased Al3+ at all soil layers, but did not cha... Mostrar Tudo |
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Thesagro: |
Acidez do Solo; Fertilizante Nitrogenado; Nitrato de Amônio; Soja; Trigo. |
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Thesaurus NAL: |
Ammonium nitrate; Nitrogen fertilizers; Soil acidification; Soybeans; Wheat. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 03392naa a2200349 a 4500
001 2162990
005 2024-03-19
008 2023 bl uuuu u00u1 u #d
024 7 $a10.1016/j.still.2022.105576$2DOI
100 1 $aFOLONI, J. S. S.
245 $aYield of soybean-wheat succession in no-tillage system and soil chemical properties affected by liming, aluminum tolerance of wheat cultivars, and nitrogen fertilization.$h[electronic resource]
260 $c2023
300 $a14 p.
520 $aSubsurface soil acidity and nitrogen (N) shortage are challenging for wheat (Triticum aestivum L.) and soybean (Glycine max L.) crops under no-tillage system. The aim of this study was to evaluate the yield of soybean-wheat succession in no-tillage system and soil chemical properties affected by liming, aluminum (Al) tolerance of wheat cultivar (WC), and N fertilization in southern Brazil. A 2 × 2 × 4 factorial arrangement was used: two liming rates (0 and 2 Mg ha− 1 – applied at the beginning of trial installation), two WC (CD 150: Al-sensitive; and BRS Gralha-Azul: Al-tolerant), and four N rates (0, 40, 80, and 120 kg ha− 1 N as NH4NO3, applied annually to wheat). Soil chemical analysis (at 0.00–0.10, 0.10–0.20, and 0.20–0.40 m layers) including pH, H+Al, Al3+, P, K+, Ca2+, Mg2+, soil organic matter (SOM), and base saturation (V) were performed 24 months after liming, in addition to evaluation of wheat and soybean grain yields at each growth season. Liming increased Ca2+, Mg2+, and V up to 0.40 m depth; increased pH and decreased H+Al only at the topsoil; and had no effect on K+, P, and SOM. Compared with Al-sensitive WC, Al-tolerant WC decreased Al3+ up to 0.40 m soil depth. Al-sensitive WC pre- ceding soybean decreased the relative soybean grain yield, particularly without liming, regardless of the N rates. Nitrogen fertilization decreased K+ at 0.00–0.10 and 0.10–0.20 m soil layers, and Mg2+ at topsoil (without liming), increased Al3+ at all soil layers, but did not change soil pH. There were several interactive effects be- tween liming, WC, and N rates. For instance, the increase of Al3+ due to N fertilization was intensified when combined with no lime application or with Al-sensitive WC. Despite soybean crop being generally non-responsive to N fertilization, N rates applied to the previous wheat crop increased soybean yield in the first two crop seasons. The different pattern of response related to soil properties is mainly attributed to the particular mobility or solubility of each element into the soil, which is influenced by the soil pH, accompanying anion during leaching process, among other factors. The role of genotype tolerance to acidic soils as complementary strategy to liming brings benefits to the agricultural system by improving the soil chemical quality.
650 $aAmmonium nitrate
650 $aNitrogen fertilizers
650 $aSoil acidification
650 $aSoybeans
650 $aWheat
650 $aAcidez do Solo
650 $aFertilizante Nitrogenado
650 $aNitrato de Amônio
650 $aSoja
650 $aTrigo
700 1 $aSILVA, S. R.
700 1 $aABATI, J.
700 1 $aOLIVEIRA JUNIOR, A. de
700 1 $aCASTRO, C. de
700 1 $aOLIVEIRA, F. A. de
700 1 $aNOGUEIRA, M. A.
700 1 $aBASSOI, M. C.
773 $tSoil & Tillage Research$gv. 226, 105576, 2023.
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Embrapa Florestas (CNPF) |
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