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| 1. |  | SZCZECINSKI, T.; KLETKE, J.; ZITZKE, J. F.; AZEVEDO, F. Q.; EMYGDIO, B. M.; PEREIRA, A. da S. Aptidão de uso culinário de clones de batata de polpa colorida. In: SEMANA INTEGRADA UFPEL, 8.; CONGRESSO DE INICIAÇÃO CIENTÍFICA, 31., 2022, Pelotas. Anais [online]... Pelotas: UFPEL, 2022. CIC UFPEL.| Biblioteca(s): Embrapa Clima Temperado. |
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| 2. | | TUCHTENHAGEN, J. F. Z.; SZCZECINSKI, T.; KLETKE, J.; AZEVEDO, F. Q.; PEREIRA, A. da S.; EMYGDIO, B. M. Desempenho produtivo de batatas coloridas na região sudeste do Rio Grande do Sul. In: SEMANA INTEGRADA UFPEL, 8.; CONGRESSO DE INICIAÇÃO CIENTÍFICA, 31., 2022, Pelotas. Anais [online]... Pelotas: UFPEL, 2022. CIC UFPEL.| Biblioteca(s): Embrapa Clima Temperado. |
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| Registros recuperados : 2 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Arroz e Feijão; Embrapa Trigo. |
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Data corrente: |
02/06/2010 |
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Data da última atualização: |
06/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
FERREIRA, E. P. de B.; SANTOS, H. P. dos; COSTA, J. R.; DE-POLLI, H.; RUMJANEK, N. G. |
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Afiliação: |
ENDERSON PETRONIO DE BRITO FERREIRA, CNPAF; HENRIQUE PEREIRA DOS SANTOS, CNPT; JANAINA RIBEIRO COSTA ROUWS, CNPAB; HELVÉCIO DE-POLLI, CNPAB; NORMA GOUVEA RUMJANEK, CNPAB. |
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Título: |
Microbial soil quality indicators under different crop rotations and tillage management. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Revista Ciência Agronômica, v. 41, n. 2, p. 177-183, abr./jun. 2010. |
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Idioma: |
Inglês |
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Conteúdo: |
An experiment was carried out under field conditions to assess the effects of soil management (no-tillage- NT and conventional tillage- CT) and crop rotation systems on microbial biomass-C (Cmic), basal soil respiration (BSR), metabolic quotient (qCO2), soil organic carbon content (Corg) and microbial carbon to organic carbon ratio (Cmic/Corg). Soil samples were collected on an area cultivated with wheat as winter crop and soybean as summer crop, both in rotation with vetch, maize and oats. Samples were also collected in a secondary forest used as reference. Data of each management system (NT and CT) were compared to forest area by ?t? test (p<0.05) and crop rotations were compared by Tukey test (p<0.05). All data were submitted to multivariate analysis (Principal Component Analysis - PCA). There were observed significant differences (?t? test; p<0.05) for Cmic, BSR, qCO2 and Cmic/Corg between NT and CT, by which NT values resemble those for forest area. For crop rotations significant differences (Tukey test; p<0.05) were found only for BSR and qCO2. The sum of the two first principal components on the PCA explained about 75% of the data variation. PCA showed NT closest to forest area than CT, especially treatments with soybean and vetch as consecutive crops. The forest area-NT clustering was mostly due to Cmic and Cmic/Corg relationship. Results indicate that the NT system is more sustainable than the CT system and can contribute for the accumulation a greater quantity of carbon in soil. MenosAn experiment was carried out under field conditions to assess the effects of soil management (no-tillage- NT and conventional tillage- CT) and crop rotation systems on microbial biomass-C (Cmic), basal soil respiration (BSR), metabolic quotient (qCO2), soil organic carbon content (Corg) and microbial carbon to organic carbon ratio (Cmic/Corg). Soil samples were collected on an area cultivated with wheat as winter crop and soybean as summer crop, both in rotation with vetch, maize and oats. Samples were also collected in a secondary forest used as reference. Data of each management system (NT and CT) were compared to forest area by ?t? test (p<0.05) and crop rotations were compared by Tukey test (p<0.05). All data were submitted to multivariate analysis (Principal Component Analysis - PCA). There were observed significant differences (?t? test; p<0.05) for Cmic, BSR, qCO2 and Cmic/Corg between NT and CT, by which NT values resemble those for forest area. For crop rotations significant differences (Tukey test; p<0.05) were found only for BSR and qCO2. The sum of the two first principal components on the PCA explained about 75% of the data variation. PCA showed NT closest to forest area than CT, especially treatments with soybean and vetch as consecutive crops. The forest area-NT clustering was mostly due to Cmic and Cmic/Corg relationship. Results indicate that the NT system is more sustainable than the CT system and can contribute for the accumulation a greater quantity of c... Mostrar Tudo |
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Palavras-Chave: |
Biomassa microbiana; Respiração microbiana. |
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Thesagro: |
Biomassa; Carbono; Manejo do solo; Matéria orgânica; Plantio direto; Rotação de cultura. |
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Categoria do assunto: |
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P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/19120/1/v41n2.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/119371/1/Microbial-soil-quality-indicators-under-different-crop-rotations-and.pdf
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Marc: |
LEADER 02317naa a2200265 a 4500
001 1854407
005 2022-06-06
008 2010 bl uuuu u00u1 u #d
100 1 $aFERREIRA, E. P. de B.
245 $aMicrobial soil quality indicators under different crop rotations and tillage management.$h[electronic resource]
260 $c2010
520 $aAn experiment was carried out under field conditions to assess the effects of soil management (no-tillage- NT and conventional tillage- CT) and crop rotation systems on microbial biomass-C (Cmic), basal soil respiration (BSR), metabolic quotient (qCO2), soil organic carbon content (Corg) and microbial carbon to organic carbon ratio (Cmic/Corg). Soil samples were collected on an area cultivated with wheat as winter crop and soybean as summer crop, both in rotation with vetch, maize and oats. Samples were also collected in a secondary forest used as reference. Data of each management system (NT and CT) were compared to forest area by ?t? test (p<0.05) and crop rotations were compared by Tukey test (p<0.05). All data were submitted to multivariate analysis (Principal Component Analysis - PCA). There were observed significant differences (?t? test; p<0.05) for Cmic, BSR, qCO2 and Cmic/Corg between NT and CT, by which NT values resemble those for forest area. For crop rotations significant differences (Tukey test; p<0.05) were found only for BSR and qCO2. The sum of the two first principal components on the PCA explained about 75% of the data variation. PCA showed NT closest to forest area than CT, especially treatments with soybean and vetch as consecutive crops. The forest area-NT clustering was mostly due to Cmic and Cmic/Corg relationship. Results indicate that the NT system is more sustainable than the CT system and can contribute for the accumulation a greater quantity of carbon in soil.
650 $aBiomassa
650 $aCarbono
650 $aManejo do solo
650 $aMatéria orgânica
650 $aPlantio direto
650 $aRotação de cultura
653 $aBiomassa microbiana
653 $aRespiração microbiana
700 1 $aSANTOS, H. P. dos
700 1 $aCOSTA, J. R.
700 1 $aDE-POLLI, H.
700 1 $aRUMJANEK, N. G.
773 $tRevista Ciência Agronômica$gv. 41, n. 2, p. 177-183, abr./jun. 2010.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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