| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Cerrados. |
|
Data corrente: |
03/02/2016 |
|
Data da última atualização: |
22/01/2026 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
LOPES, A. A. de C.; SOUSA, D. M. G. de; REIS JUNIOR, F. B. dos; MENDES, I. de C. |
|
Afiliação: |
ANDRÉ ALVES DE CASTRO LOPES, UNIVERSIDADE DE BRASÍLIA; DJALMA MARTINHAO GOMES DE SOUSA, CPAC; FABIO BUENO DOS REIS JUNIOR, CPAC; IEDA DE CARVALHO MENDES, CPAC. |
|
Título: |
Air-drying and long-term storage effects on b-glucosidase, acid phosphatase and arylsulfatase activities in a tropical Savannah Oxisol. |
|
Ano de publicação: |
2015 |
|
Fonte/Imprenta: |
Applied Soil Ecology, v. 93, p. 68-77, Sept. 2015. |
|
DOI: |
https://doi.org/10.1016/j.apsoil.2015.04.001 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Air-drying soil samples causes a rapid cessation of microbial activity and is a useful means of storing soil samples and standardizing experiments as moisture levels can be accurately controlled. In contrast to temperate soils, there is little information regarding the advantages and disadvantages of using field moist or air-dried soil samples in the assessment of enzyme activities in tropical soils. The aim of this study was to evaluate the effects of air-drying and a two-year storage period on b-glucosidase, acid phosphatase and arylsulfatase activities in soil samples from cultivated and non-cultivated clayey Oxisols from the Cerrado region. Cultivated soil samples (0?10 cm depth) were collected from 24 treatments in three long-term experiments and analyzed to determine their enzyme activities and soil organic carbon (SOC). These treatments presented a large range of extractable Mehlich-P values and cumulative corn and soybean yields. Non-cultivated soil samples from four nearby areas with native Cerrado vegetation were also included in the study. In the laboratory, soil samples were divided into two groups. In the first group, soil samples were separated, stored at 7 C at field moisture levels and sieved through a 4 mm sieve. The analyses were performed within 1 week after sampling. In the second group, soil samples were air-dried at room temperature for two weeks, sieved through a 2 mm sieve and stored for 2 years at room temperature. Average reductions of 26%, 53% and 72%, were observed in the activities of b-glucosidase, arylsulfatase and acid phosphatase in the air-dried long-term stored samples, in both cultivated and noncultivated Cerrado clayey Oxisols. Air-drying and long-term storage hardly changed the ranking of treatments for b-glucosidase, arylsulfatase and acid phosphatase. However, a reduction in the capacity to detect changes among treatments was observed for acid phosphatase, which prevents the recommendation of air-drying prior to its analyses. As long as the effects of air-drying upon soil enzymes activities are well established, this pretreatment can be used for b-glucosidase and arylsulfatase analyses in the Cerrado clayey Oxisols. MenosAir-drying soil samples causes a rapid cessation of microbial activity and is a useful means of storing soil samples and standardizing experiments as moisture levels can be accurately controlled. In contrast to temperate soils, there is little information regarding the advantages and disadvantages of using field moist or air-dried soil samples in the assessment of enzyme activities in tropical soils. The aim of this study was to evaluate the effects of air-drying and a two-year storage period on b-glucosidase, acid phosphatase and arylsulfatase activities in soil samples from cultivated and non-cultivated clayey Oxisols from the Cerrado region. Cultivated soil samples (0?10 cm depth) were collected from 24 treatments in three long-term experiments and analyzed to determine their enzyme activities and soil organic carbon (SOC). These treatments presented a large range of extractable Mehlich-P values and cumulative corn and soybean yields. Non-cultivated soil samples from four nearby areas with native Cerrado vegetation were also included in the study. In the laboratory, soil samples were divided into two groups. In the first group, soil samples were separated, stored at 7 C at field moisture levels and sieved through a 4 mm sieve. The analyses were performed within 1 week after sampling. In the second group, soil samples were air-dried at room temperature for two weeks, sieved through a 2 mm sieve and stored for 2 years at room temperature. Average reductions of 26%, 53% and ... Mostrar Tudo |
|
Palavras-Chave: |
Enzymatic analysis; Soil storage technique. |
|
Thesaurus Nal: |
Soil conservation; Soil enzymes; Soil quality. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02969naa a2200229 a 4500
001 2035990
005 2026-01-22
008 2015 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.apsoil.2015.04.001$2DOI
100 1 $aLOPES, A. A. de C.
245 $aAir-drying and long-term storage effects on b-glucosidase, acid phosphatase and arylsulfatase activities in a tropical Savannah Oxisol.$h[electronic resource]
260 $c2015
520 $aAir-drying soil samples causes a rapid cessation of microbial activity and is a useful means of storing soil samples and standardizing experiments as moisture levels can be accurately controlled. In contrast to temperate soils, there is little information regarding the advantages and disadvantages of using field moist or air-dried soil samples in the assessment of enzyme activities in tropical soils. The aim of this study was to evaluate the effects of air-drying and a two-year storage period on b-glucosidase, acid phosphatase and arylsulfatase activities in soil samples from cultivated and non-cultivated clayey Oxisols from the Cerrado region. Cultivated soil samples (0?10 cm depth) were collected from 24 treatments in three long-term experiments and analyzed to determine their enzyme activities and soil organic carbon (SOC). These treatments presented a large range of extractable Mehlich-P values and cumulative corn and soybean yields. Non-cultivated soil samples from four nearby areas with native Cerrado vegetation were also included in the study. In the laboratory, soil samples were divided into two groups. In the first group, soil samples were separated, stored at 7 C at field moisture levels and sieved through a 4 mm sieve. The analyses were performed within 1 week after sampling. In the second group, soil samples were air-dried at room temperature for two weeks, sieved through a 2 mm sieve and stored for 2 years at room temperature. Average reductions of 26%, 53% and 72%, were observed in the activities of b-glucosidase, arylsulfatase and acid phosphatase in the air-dried long-term stored samples, in both cultivated and noncultivated Cerrado clayey Oxisols. Air-drying and long-term storage hardly changed the ranking of treatments for b-glucosidase, arylsulfatase and acid phosphatase. However, a reduction in the capacity to detect changes among treatments was observed for acid phosphatase, which prevents the recommendation of air-drying prior to its analyses. As long as the effects of air-drying upon soil enzymes activities are well established, this pretreatment can be used for b-glucosidase and arylsulfatase analyses in the Cerrado clayey Oxisols.
650 $aSoil conservation
650 $aSoil enzymes
650 $aSoil quality
653 $aEnzymatic analysis
653 $aSoil storage technique
700 1 $aSOUSA, D. M. G. de
700 1 $aREIS JUNIOR, F. B. dos
700 1 $aMENDES, I. de C.
773 $tApplied Soil Ecology$gv. 93, p. 68-77, Sept. 2015.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Cerrados (CPAC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 8 | |
| 3. |  | WISCH, L. N.; VILAS-BÔAS, G. T. F. L.; SOSA-GÓMEZ, D. R. Efeito da dose subletal de Bacillus thuringiensis expressando a toxina Cry1Ac na atividade de SfMNPV e Nomuraea rileyi sobre a lagarta-do-cartucho-do-milho, Spodoptera frugiperda. In: SIMPÓSIO DE CONTROLE BIOLÓGICO, 13., 2013, Bonito, MS. Anais... Brasília, DF: Embrapa, 2013. 1 CD-ROM. SICONBIOL.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
|    |
| 5. | | WISCH, L. N.; FORTI, L. A.; VILAS-BÔAS, G. T. F. L.; SOSA-GÓMEZ, D. R. Efeitos subletais de Bacillus thuringiensis HD-73, que expressa a toxina CRY 1AC, na infecção por Nomuraea rileyi e NPVS de noctuídeos. In: REUNIÃO DE PESQUISA DE SOJA DA REGIÃO CENTRAL DO BRASIL, 33., 2013, Londrina. Resumos expandidos... Brasília, DF: Embrapa, 2013. p. 47-49.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
| |
| 6. | | WISCH, L. N.; RUTHES, E.; OLIVEIRA, M. C. N. de; SOSA-GÓMEZ, D. R. Distribuição vertical de ovos e lagartas de Anticarsia gemmatalis Hübner, 1818 (Lepidoptera: noctuidae) na cultura da soja. In: CONGRESSO BRASILEIRO DE SOJA, 6., 2012, Cuiabá. Soja: integração nacional e desenvolvimento sustentável: anais. Brasília, DF: Embrapa, 2012. 4 p. Titulo em inglês: Within-plant distribution of Anticarsia gemmatalis eggs and larvae (Lepidoptera: noctuidae) in soybean. CBSoja 2012| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
| |
| Registros recuperados : 8 | |
|
| Expressão de busca inválida. Verifique!!! |
|
|
