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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
04/06/2013 |
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Data da última atualização: |
18/10/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
NASCENTE, A. S.; LI, Y. C.; CRUSCIOL, C. A. C. |
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Afiliação: |
ADRIANO STEPHAN NASCENTE, CNPAF; YUNCONG C. LI, UNIVERSITY OF FLORIDA; CARLOS ALEXANDRE COSTA CRUSCIOL, UNESP, Botucatu-SP. |
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Título: |
Cover crops and no-till effects on physical fractions of soil organic matter. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Soil and Tillage Research, Amsterdam, v. 130, p. 52-57, 2013. |
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DOI: |
http://dx.doi.org/10.1016/j.still.2013.02.008 |
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Idioma: |
Inglês |
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Conteúdo: |
Physical fractions (free light fraction, intra-aggregate light fraction and heavy fraction) of soil organic matter (SOM) are good indicators of soil quality for sustainable land use. The objective of this study was to evaluate the effect of cover crops on total organic carbon (TOC) and physical fractions of soil organic matter in soil under a no-tillage system (NTS) and a conventional tillage system (CTS, one plowing and two disking). A three-year field experiment was carried out as a cover crop-rice (Oryza sativa)-cover crop-rice rotation. Treatments included cover crops (Panicum maximum, Brachiaria ruziziensis, Brachiaria brizantha, and pearl millet (Pennisetum glaucum), fallow, till or no till. The SOM was physically fractionated in free light fraction (FLF), intra-aggregates light fraction (IALF) and heavy fraction (HF). The levels of C in whole soil were also evaluated, as well as C in the light fractions (FLF + IALF) and in the HF. Results indicated that concentrations of C in the FLF and IALF in surface soils (0?0.05 m) were much higher (10.8 and 1.95 g kg-1, respectively) than that in the 0.05?0.1 m soil depth (7.68 and 1.54 g kg-1, respectively) and in the 0.1?0.2 m soil depth (4.98 and 1.24 g kg-1, respectively). The NTS resulted in higher levels of FLF (12.2 g kg-1) and IALF (2.19 g kg-1) than with CTS (1.37?7.30 g kg-1). Millet had the highest C (19.5 g kg-1) and N (1.1 g kg-1) concentrations in soil. There was an accumulation of TOC and total N in the surface soil with cover crops, and concentrations of TOC were higher in the HF (79.0%) than in the light fractions (21.0%). Although SOM changed little during the two years of this experiment, the various C fractions were significantly affected by the tillage treatments. We conclude that SOM physical fractionation allowed seeing significant differences caused by the soil management in the organic matter dynamics in a short period of time. MenosPhysical fractions (free light fraction, intra-aggregate light fraction and heavy fraction) of soil organic matter (SOM) are good indicators of soil quality for sustainable land use. The objective of this study was to evaluate the effect of cover crops on total organic carbon (TOC) and physical fractions of soil organic matter in soil under a no-tillage system (NTS) and a conventional tillage system (CTS, one plowing and two disking). A three-year field experiment was carried out as a cover crop-rice (Oryza sativa)-cover crop-rice rotation. Treatments included cover crops (Panicum maximum, Brachiaria ruziziensis, Brachiaria brizantha, and pearl millet (Pennisetum glaucum), fallow, till or no till. The SOM was physically fractionated in free light fraction (FLF), intra-aggregates light fraction (IALF) and heavy fraction (HF). The levels of C in whole soil were also evaluated, as well as C in the light fractions (FLF + IALF) and in the HF. Results indicated that concentrations of C in the FLF and IALF in surface soils (0?0.05 m) were much higher (10.8 and 1.95 g kg-1, respectively) than that in the 0.05?0.1 m soil depth (7.68 and 1.54 g kg-1, respectively) and in the 0.1?0.2 m soil depth (4.98 and 1.24 g kg-1, respectively). The NTS resulted in higher levels of FLF (12.2 g kg-1) and IALF (2.19 g kg-1) than with CTS (1.37?7.30 g kg-1). Millet had the highest C (19.5 g kg-1) and N (1.1 g kg-1) concentrations in soil. There was an accumulation of TOC and total N in the surface so... Mostrar Tudo |
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Thesagro: |
Brachiaria brizantha; Brachiaria ruziziensis; Manejo do solo; Matéria orgânica; Panicum maximum; Plantio direto. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02651naa a2200229 a 4500
001 1959318
005 2013-10-18
008 2013 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.still.2013.02.008$2DOI
100 1 $aNASCENTE, A. S.
245 $aCover crops and no-till effects on physical fractions of soil organic matter.$h[electronic resource]
260 $c2013
520 $aPhysical fractions (free light fraction, intra-aggregate light fraction and heavy fraction) of soil organic matter (SOM) are good indicators of soil quality for sustainable land use. The objective of this study was to evaluate the effect of cover crops on total organic carbon (TOC) and physical fractions of soil organic matter in soil under a no-tillage system (NTS) and a conventional tillage system (CTS, one plowing and two disking). A three-year field experiment was carried out as a cover crop-rice (Oryza sativa)-cover crop-rice rotation. Treatments included cover crops (Panicum maximum, Brachiaria ruziziensis, Brachiaria brizantha, and pearl millet (Pennisetum glaucum), fallow, till or no till. The SOM was physically fractionated in free light fraction (FLF), intra-aggregates light fraction (IALF) and heavy fraction (HF). The levels of C in whole soil were also evaluated, as well as C in the light fractions (FLF + IALF) and in the HF. Results indicated that concentrations of C in the FLF and IALF in surface soils (0?0.05 m) were much higher (10.8 and 1.95 g kg-1, respectively) than that in the 0.05?0.1 m soil depth (7.68 and 1.54 g kg-1, respectively) and in the 0.1?0.2 m soil depth (4.98 and 1.24 g kg-1, respectively). The NTS resulted in higher levels of FLF (12.2 g kg-1) and IALF (2.19 g kg-1) than with CTS (1.37?7.30 g kg-1). Millet had the highest C (19.5 g kg-1) and N (1.1 g kg-1) concentrations in soil. There was an accumulation of TOC and total N in the surface soil with cover crops, and concentrations of TOC were higher in the HF (79.0%) than in the light fractions (21.0%). Although SOM changed little during the two years of this experiment, the various C fractions were significantly affected by the tillage treatments. We conclude that SOM physical fractionation allowed seeing significant differences caused by the soil management in the organic matter dynamics in a short period of time.
650 $aBrachiaria brizantha
650 $aBrachiaria ruziziensis
650 $aManejo do solo
650 $aMatéria orgânica
650 $aPanicum maximum
650 $aPlantio direto
700 1 $aLI, Y. C.
700 1 $aCRUSCIOL, C. A. C.
773 $tSoil and Tillage Research, Amsterdam$gv. 130, p. 52-57, 2013.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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| Registros recuperados : 13 | |
| 6. |  | BUSATO, J. G.; ZANDONADI, D. B.; SOUSA, I. M. de; MARINHO, E. B.; DOBBSS, L. B.; MÓL, A. R. Efeito do extrato húmico solúvel em água e biofertilizante sobre o desenvolvimento de mudas de Callophyllum brasiliense. Pesquisa Florestal Brasileira, Colombo, v. 36, n. 86, p. 161-168, abr./jun. 2016.| Biblioteca(s): Embrapa Florestas. |
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| 7. | | SILVA, I. C. da; MAGALHAES, P. M. de; SOUSA, I. M. de O.; FOGLIO, M. A.; LEONARDECZ, E.; ESTEVES, S. N.; CHAGAS, A. C. de S. Anthelmintic activity of Artemisia annua in sheepmodel. Journal of Medicinal Plants Research, v. 11, n. 7, p. 137-143, 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 8. | | PONTE FILHO, F, A. M. da; SOUSA, I. M. de; ALMEIDA, B. K. da S.; SANTOS, M. A. do; SOUZA, H. A. de; LISBOA, F. G. Abordagem multivariada para recomendação de sorgo forrageiro no semiárido cearense. In: CONGRESSO BRASILEIRO DE AGRONOMIA, 30., 2017, Fortaleza. Segurança hídrica: um desafio para os engenheiros agrônomos do Brasil; [anais]. Fortaleza: AEAC; CONFAEAB, 2017. 4 f.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio-Norte. |
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| 9. | | SOUZA, R. A. de; NUNES, M. U. C.; SANTOS, J. R. dos; SOUSA, E. F. de; SOUSA, I. M.; SOUZA, F. H. O. Efeito de adubos de solubilidade lenta na produção de cultivares de amendoim (Arachis hypogaea L.) em sistema orgânico. In: ENCONTRO DE INICIAÇÃO CIENTÍFICA, 18; ENCONTRO DE PÓS-GRADUAÇÃO, 4., 2008, São Cristóvão. Anais... São Cristóvão: UFS, 2008. Ciências agrárias. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 10. | | CHARLIE-SILVA, I.; GIGLIOTI, R.; MAGALHÃES, P. M.; SOUSA, I. M. O.; FOGLIO, M. A.; OLIVEIRA, M. C. de S.; CHAGAS, A. C. de S. Lack of impact of dietary inclusion of dried Artemisia annua leaves for cattle on infestation by Rhipicephalus (Boophilus) microplus ticks. Ticks and Tick-borne Diseases, v.9, p. 1115-1119, 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 11. | | SOUSA, I. M.; NASCENTE, A. S.; FILIPPI, M. C. C. de; SOUZA, A. C. A. de; FRASCA, L. L. de M. Microrganismos indutores de crescimento em produção de biomassa de arroz irrigado por inundação. In: REUNIÃO CENTRO-OESTE DE CIÊNCIA DO SOLO, 5.; SIMPÓSIO DE NUTRIÇÃO DE PLANTAS NO CERRADO, 2., 2018, Goiânia. Uso eficiente de nutrientes e adubação de sistemas agrícolas: resumos. Goiânia: UFG, 2018. p. 108-109.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 12. | | SOUSA, E. F. de; NUNES, M. U. C.; SANTOS, J. R. dos; SOUSA, I. M.; SOUZA, R. A. de; SOUZA, F. H. O. Efeito de fertilizantes de baixa solublilidade na produtividade de cultivares de amendoim (Arachis hypogaea L.) orgânico. In: ENCONTRO DE INICIAÇÃO CIENTÍFICA, 18; ENCONTRO DE PÓS-GRADUAÇÃO, 4., 2008, São Cristóvão. Anais... São Cristóvão: UFS, 2008. Ciências agrárias. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 13. | | CALA, A. C.; FERREIRA, J. F. S; CHAGAS, A. C. de S.; GONZALEZ, J. M.; RODRIGUES, R. F.; FOGLIO, M. A.; OLIVEIRA, M. C. de S.; SOUSA, I. M.; MAGALHÃES, P. M.; BARIONI JUNIOR, W. Anthelmintic activity of Artemisia annua L. extracts in vitro and the effect of an aqueous extract and artemisinin in sheep naturally infected with gastrointestinal nematodes. Parasitology Research, v. 113, n. 6, p. 2345-2353, jun. 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| Registros recuperados : 13 | |
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