| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Soja. |
|
Data corrente: |
02/03/2006 |
|
Data da última atualização: |
11/09/2017 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
FRANCHINI, J. C.; CRISPINO, C. C.; SOUZA, R. A.; TORRES, E.; HUNGRIA, M. |
|
Afiliação: |
JULIO CEZAR FRANCHINI DOS SANTOS, CNPSO; CARLA CRIPA CRISPINO, UFSCar; ELENO TORRES; MARIANGELA HUNGRIA DA CUNHA, CNPSO. |
|
Título: |
Microbiological parameters as indicators of soil quality under various soil management and crop rotation systems in southern Brazil. |
|
Ano de publicação: |
2007 |
|
Fonte/Imprenta: |
Soil & Tillage Research, v. 92, n. 2, p. 18-29, Jan. 2007. |
|
DOI: |
http://dx.doi.org/10.1016/j.still.2005.12.010 |
|
Idioma: |
Inglês |
|
Conteúdo: |
The objective of this work was to identify soil parameters potentially useful to monitor soil quality under different soil management and crop rotation systems. Microbiological and chemical parameters were evaluated in a field experiment in the State of Paraná, southern Brazil, in response to soil management [no-tillage (NT) and conventional tillage (CT)] and crop rotation [including grain (soybean, S; maize, M; wheat, W) and legume (lupin, L.) and non-legume (oat, O) covers] systems. Three crop rotation systems were evaluated: (1) (O/M/O/S/W/S/L/M/O/S), (2) (O/S/L/M/O/S/W/S/L/M), and (3) (O/S/W/S/L/M/O/M/W/M), and soil parameters were monitored after the fifth year. Before ploughing, CO2-emission rates were similar in NT and CT soils, but plough increased it by an average of 57%. Carbon dioxide emission was 13% higher with lupin residues than with wheat straw; decomposition rates were rapid with both soil management systems. Amounts of microbial biomass carbon and nitrogen (MB-C and MB-N, respectively) were 80 and 104% higher in NT than in CT, respectively; however, in general these parameters were not affected by crop rotation. Efficiency of the microbial community was significantly higher in NT: metabolic quotient (qCO2) was 55% lower than in CT. Soluble C and N levels were 37 and 24% greater in NT than in CT, respectively, with no effects of crop rotation. Furthermore, ratios of soluble C and N contents to MB-C and MB-N were consistently lower in NT, indicating higher immobilization of C and N per unit of MB. The decrease in qCO2 and the increase in MB-C under NT allowed enhancements in soil C stocks, such that in the 0?40 cm profile, a gain of 2500 kg of C ha-1 was observed in relation to CT. Carbon stocks also varied with crop rotation, with net changes at 0?40 cm of 726, 1167 and -394 kg C ha-1 year, in rotations 1, 2 and 3, respectively. Similar results were obtained for the N stocks, with 410 kg N ha-1 gained in NT, while crop rotations 1, 2 and 3 accumulated 71, 137 and 37 kg of N ha-1 year-1, respectively. On average, microbial biomass corresponded to 2.4 and 1.7% of the total soil C, and 5.2 and 3.2% of the N in NT and CT systems, respectively. Soil management was the main factor affecting soil C and N levels, but enhancement also resulted from the ratios of legumes and non-legumes in the rotations. The results emphasize the importance of microorganisms as reservoirs of C and N in tropical soils. Furthermore, the parameters associated with microbiological activity were more responsive to soil management and crop rotation effects than were total stocks of C and N, demonstrating their usefulness as indicators of soil quality in the tropics. MenosThe objective of this work was to identify soil parameters potentially useful to monitor soil quality under different soil management and crop rotation systems. Microbiological and chemical parameters were evaluated in a field experiment in the State of Paraná, southern Brazil, in response to soil management [no-tillage (NT) and conventional tillage (CT)] and crop rotation [including grain (soybean, S; maize, M; wheat, W) and legume (lupin, L.) and non-legume (oat, O) covers] systems. Three crop rotation systems were evaluated: (1) (O/M/O/S/W/S/L/M/O/S), (2) (O/S/L/M/O/S/W/S/L/M), and (3) (O/S/W/S/L/M/O/M/W/M), and soil parameters were monitored after the fifth year. Before ploughing, CO2-emission rates were similar in NT and CT soils, but plough increased it by an average of 57%. Carbon dioxide emission was 13% higher with lupin residues than with wheat straw; decomposition rates were rapid with both soil management systems. Amounts of microbial biomass carbon and nitrogen (MB-C and MB-N, respectively) were 80 and 104% higher in NT than in CT, respectively; however, in general these parameters were not affected by crop rotation. Efficiency of the microbial community was significantly higher in NT: metabolic quotient (qCO2) was 55% lower than in CT. Soluble C and N levels were 37 and 24% greater in NT than in CT, respectively, with no effects of crop rotation. Furthermore, ratios of soluble C and N contents to MB-C and MB-N were consistently lower in NT, indicating higher im... Mostrar Tudo |
|
Thesagro: |
Solo. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 03320naa a2200193 a 4500
001 1468949
005 2017-09-11
008 2007 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.still.2005.12.010$2DOI
100 1 $aFRANCHINI, J. C.
245 $aMicrobiological parameters as indicators of soil quality under various soil management and crop rotation systems in southern Brazil.
260 $c2007
520 $aThe objective of this work was to identify soil parameters potentially useful to monitor soil quality under different soil management and crop rotation systems. Microbiological and chemical parameters were evaluated in a field experiment in the State of Paraná, southern Brazil, in response to soil management [no-tillage (NT) and conventional tillage (CT)] and crop rotation [including grain (soybean, S; maize, M; wheat, W) and legume (lupin, L.) and non-legume (oat, O) covers] systems. Three crop rotation systems were evaluated: (1) (O/M/O/S/W/S/L/M/O/S), (2) (O/S/L/M/O/S/W/S/L/M), and (3) (O/S/W/S/L/M/O/M/W/M), and soil parameters were monitored after the fifth year. Before ploughing, CO2-emission rates were similar in NT and CT soils, but plough increased it by an average of 57%. Carbon dioxide emission was 13% higher with lupin residues than with wheat straw; decomposition rates were rapid with both soil management systems. Amounts of microbial biomass carbon and nitrogen (MB-C and MB-N, respectively) were 80 and 104% higher in NT than in CT, respectively; however, in general these parameters were not affected by crop rotation. Efficiency of the microbial community was significantly higher in NT: metabolic quotient (qCO2) was 55% lower than in CT. Soluble C and N levels were 37 and 24% greater in NT than in CT, respectively, with no effects of crop rotation. Furthermore, ratios of soluble C and N contents to MB-C and MB-N were consistently lower in NT, indicating higher immobilization of C and N per unit of MB. The decrease in qCO2 and the increase in MB-C under NT allowed enhancements in soil C stocks, such that in the 0?40 cm profile, a gain of 2500 kg of C ha-1 was observed in relation to CT. Carbon stocks also varied with crop rotation, with net changes at 0?40 cm of 726, 1167 and -394 kg C ha-1 year, in rotations 1, 2 and 3, respectively. Similar results were obtained for the N stocks, with 410 kg N ha-1 gained in NT, while crop rotations 1, 2 and 3 accumulated 71, 137 and 37 kg of N ha-1 year-1, respectively. On average, microbial biomass corresponded to 2.4 and 1.7% of the total soil C, and 5.2 and 3.2% of the N in NT and CT systems, respectively. Soil management was the main factor affecting soil C and N levels, but enhancement also resulted from the ratios of legumes and non-legumes in the rotations. The results emphasize the importance of microorganisms as reservoirs of C and N in tropical soils. Furthermore, the parameters associated with microbiological activity were more responsive to soil management and crop rotation effects than were total stocks of C and N, demonstrating their usefulness as indicators of soil quality in the tropics.
650 $aSolo
700 1 $aCRISPINO, C. C.
700 1 $aSOUZA, R. A.
700 1 $aTORRES, E.
700 1 $aHUNGRIA, M.
773 $tSoil & Tillage Research$gv. 92, n. 2, p. 18-29, Jan. 2007.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Soja (CNPSO) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 29 | |
| 9. |  | ZANGISKI, F.; MIQUELLUTI, D. J.; BERTOL, I.; RAMOS, J. C. Soil roughness indexes and their relationship with water erosion. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 6, p. 756-764, June, 2018. Título em português: Índices de rugosidade do solo e sua relação com a erosão hídrica.| Biblioteca(s): Embrapa Unidades Centrais. |
|    |
| 12. | | BARETTA, D.; MAFRA, A. L.; SANTOS, J. C. P.; AMARANTE, C. V. T. do; BERTOL, I. Análise multivariada da fauna edáfica em diferentes sistemas de preparo e cultivo do solo. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 41, n. 11, p. 1675-1679, nov. 2006 Notas Científicas.
Título em inglês: Multivariate analysis of soil fauna under different soil tillage and crop management systems.| Biblioteca(s): Embrapa Unidades Centrais. |
| |
| 14. | | AMARAL, A. J. do; COGO, N. P.; BERTOL, I.; BARBOSA, F. T. Perdas de fósforo e potássio por erosão sob diferentes tipos e doses de resíduo cultural, em dois modos de semeadura direta. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 33., 2011, Uberlândia. Solos nos biomas brasileiros: sustentabilidade e mudanças climáticas: anais. [Uberlândia]: SBCS: UFU, ICIAG, 2011. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Solos. |
| |
| 16. | | GEBLER, L.; BERTOL, I.; RAMOS, R. R.; LOUZADA, J. A. S.; MIQUELLUTI, D. J. Fósforo reativo: arraste superficial sob chuvas simuladas para diferentes coberturas vegetais. Revista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande, v. 16, n. 1, p. 99-107, jan. 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Uva e Vinho. |
| |
| 17. | | BERTOL, I.; ALMEIDA, J. A. de; ALMEIDA, E. X. de; KURTZ, C. Propriedades físicas do solo relacionadas a diferentes níveis de oferta de forragem de capim elefante anão cv. Mott. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 35, n. 5, p. 1047-1054, maio, 2000. Título em inglês: Soil physic properties related to forage offer levels of dwarf elephant grass cv. Mott.| Biblioteca(s): Embrapa Unidades Centrais. |
| |
| 18. | | BERTOL, I.; GOMES, K. E.; DENARDIN, R. B. N.; MACHADO, L. A. Z.; MARASCHIN, G. E. Propriedades físicas do solo relacionadas a diferentes níveis de oferta de forragem numa pastagem natural. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 33, n. 5, p. 779-786, maio 1998 Título em inglês: Soil physics properties and their relation to different levels of forage suply on a natural pastures.| Biblioteca(s): Embrapa Unidades Centrais. |
| |
| 19. | | SANTOS, M. A. do N. dos; BERTOL, I.; KAUFMANN, D. S.; MECABÔ JÚNIOR, J.; BAGIO, B. Rusle parameters for modeling the loss of a soil subjected to pig slurry application. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 10, p. 1158-1166, Oct. 2018. Título em português: Parâmetros Rusle para modelar a perda de um solo submetido à aplicação de dejeto suíno.| Biblioteca(s): Embrapa Unidades Centrais. |
| |
| Registros recuperados : 29 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
