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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sul. |
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Data corrente: |
15/12/2011 |
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Data da última atualização: |
15/02/2012 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LOURENZI, C. R.; CERETTA, C. A.; SILVA, L. S. da; TRENTIN, G.; GIROTTO, E.; LORENSINI, F.; TIECHER, T. L.; BRUNETTO, G. |
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Afiliação: |
Cleudimar Rogério Lourenzi; Carlos Alberto Ceretta; Leandro Souza da Silva; GUSTAVO TRENTIN, CPPSUL; Eduardo Girotto; Felipe Lorensi; Tadeu Luis Tiecher; Gustavo Brunetto. |
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Título: |
Soil chemical properties related to acidity under successive pig slurry applications. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, Viçosa, v. 35, n. 5, p. 1827-1836, set./out. 2011. |
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ISSN: |
0100-0683 |
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DOI: |
http://dx.doi.org/10.1590/S0100-06832011000500037 |
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Idioma: |
Inglês |
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Conteúdo: |
A aplicação de dejetos como adubo ao solo pode alterar os atributos químicos deste e afetar a sua acidez, modificando o ambiente para o crescimento e desenvolvimento das culturas. O objetivo deste trabalho foi avaliar a alteração de atributos químicos relacionados à acidez de um solo submetido a aplicações sucessivas de dejeto líquido de suínos. O experimento foi instalado em maio de 2000, em área experimental sob plantio direto pertencente à Universidade Federal de Santa Maria (UFSM) e conduzido até janeiro de 2008. Foram realizadas 19 aplicações superficiais de 0, 20, 40 e 80 m3 ha-1 de dejeto líquido de suínos, durante 100 meses. Ao final, foi coletado solo nas camadas de 0?2, 2?4, 4?6, 6?8, 8?10, 10?12, 12?14, 14?16, 16?18, 18?20, 20?25, 25?30, 30?35, 35?40, 40?50 e 50?60 cm. A aplicação de dejeto líquido de suínos aumentou os valores de pH do solo, podendo o incremento atingir a profundidade de 8 cm, sem alteração nos valores de acidez potencial. Também promoveu acúmulo dos teores trocáveis de Ca e Mg nas camadas superficiais do solo, aumentando os valores de saturação por bases e diminuindo a saturação por Al. As aplicações ao longo do tempo possibilitaram aumento no teor de MO em profundidade. Entretanto, o efeito desses dejetos sobre a CTC potencial foi menos significativo e restrito à camada superficial. |
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Palavras-Chave: |
Matéria orgânica do solo; PH em água; Resíduos orgânicos; Saturação por alumínio; Saturação por bases. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/50371/1/V35N5a36.pdf
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Marc: |
LEADER 02287naa a2200289 a 4500
001 1909857
005 2012-02-15
008 2011 bl uuuu u00u1 u #d
022 $a0100-0683
024 7 $ahttp://dx.doi.org/10.1590/S0100-06832011000500037$2DOI
100 1 $aLOURENZI, C. R.
245 $aSoil chemical properties related to acidity under successive pig slurry applications.$h[electronic resource]
260 $c2011
520 $aA aplicação de dejetos como adubo ao solo pode alterar os atributos químicos deste e afetar a sua acidez, modificando o ambiente para o crescimento e desenvolvimento das culturas. O objetivo deste trabalho foi avaliar a alteração de atributos químicos relacionados à acidez de um solo submetido a aplicações sucessivas de dejeto líquido de suínos. O experimento foi instalado em maio de 2000, em área experimental sob plantio direto pertencente à Universidade Federal de Santa Maria (UFSM) e conduzido até janeiro de 2008. Foram realizadas 19 aplicações superficiais de 0, 20, 40 e 80 m3 ha-1 de dejeto líquido de suínos, durante 100 meses. Ao final, foi coletado solo nas camadas de 0?2, 2?4, 4?6, 6?8, 8?10, 10?12, 12?14, 14?16, 16?18, 18?20, 20?25, 25?30, 30?35, 35?40, 40?50 e 50?60 cm. A aplicação de dejeto líquido de suínos aumentou os valores de pH do solo, podendo o incremento atingir a profundidade de 8 cm, sem alteração nos valores de acidez potencial. Também promoveu acúmulo dos teores trocáveis de Ca e Mg nas camadas superficiais do solo, aumentando os valores de saturação por bases e diminuindo a saturação por Al. As aplicações ao longo do tempo possibilitaram aumento no teor de MO em profundidade. Entretanto, o efeito desses dejetos sobre a CTC potencial foi menos significativo e restrito à camada superficial.
653 $aMatéria orgânica do solo
653 $aPH em água
653 $aResíduos orgânicos
653 $aSaturação por alumínio
653 $aSaturação por bases
700 1 $aCERETTA, C. A.
700 1 $aSILVA, L. S. da
700 1 $aTRENTIN, G.
700 1 $aGIROTTO, E.
700 1 $aLORENSINI, F.
700 1 $aTIECHER, T. L.
700 1 $aBRUNETTO, G.
773 $tRevista Brasileira de Ciência do Solo, Viçosa$gv. 35, n. 5, p. 1827-1836, set./out. 2011.
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Registro original: |
Embrapa Pecuária Sul (CPPSUL) |
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Registro Completo
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
15/03/2022 |
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Data da última atualização: |
24/03/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
SOUSA, R. O. de; CARLOS, F. S.; SILVA, L. S. da; SCIVITTARO, W. B.; RIBEIRO, P. L.; LIMA, C. L. R. de. |
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Afiliação: |
ROGÉRIO OLIVEIRA DE SOUSA; FILIPE SELAU CARLOS; LEANDRO SOUZA DA SILVA; WALKYRIA BUENO SCIVITTARO, CPACT; PABLO LACERDA RIBEIRO; CLÁUDIA LIANE RODRIGUES DE LIMA. |
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Título: |
No-tillage for flooded rice in Brazilian subtropical paddy fields: history, challenges, advances and perspectives. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, v. 45, e0210102, 2021. |
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Páginas: |
24 p. |
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DOI: |
https://doi.org/10.36783/18069657rbcs20210102 |
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Idioma: |
Inglês |
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Notas: |
First online. |
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Conteúdo: |
No-tillage (NT) has been one of the main advances related to soil management in Brazilian agriculture in the last 30 years. However, its full adoption in lowland areas that are traditionally cultivated with flooded rice is still incipient (<5 %). The main reasons are associated with the soil hydromorphic condition and the management of highly recalcitrant residual crop biomass, demanding soil disturbance even occasionally. This review presents a historical survey about the soil management systems utilized in lowland areas in southern Brazil, emphasizing the experiences of NT adoption in areas with flooded rice. Results from studies focused on the main changes in chemical, physical, and microbiological soil properties due to NT adoption were addressed, as well as the NT effects on greenhouse gas emissions and crop yields. Finally, the main challenges and prospects for NT were discussed considering new emerging scenarios for flooded rice production in lowlands, especially soybean rotation and integrated agricultural production systems. No-tillage can increase the soil organic carbon, the cation exchangeable capacity and tends to promote the accumulation of nutrients as nitrogen in surface layers. Improvements in soil aggregation, porosity and water availability are usually observed in NT, but only if medium or long-term trials are considered. NT favors microbial activity in the shallower soil layer by promoting microbial biomass carbon (+45 %), microbial biomass nitrogen (+54 %) and basal respiration (+54 %) compared to conventional tillage (CT), while the activity of extracellular enzymes also may be stimulated. Crop yield tends to be similar among the soil managements systems over time. Seasonal CH4 emissions might be reduced by 21 % with NT adoption without increasing N2O. Plant breeding and geotechnology advances associated with soybean market valuation intensified the introduction of this crop in paddy fields. The main challenge for the full adoption of NT is the need for soil tillage after rice harvesting to correct soil surface irregularities or manage rice straw. In the future, advances in plant breeding and drainage techniques probably will favor the expansion of NT in southern Brazil lowlands. The traditional system of flooded rice cultivation, based on CT and monoculture associated with beef cattle under extensive grazing, is no longer viable and will not be further established. MenosNo-tillage (NT) has been one of the main advances related to soil management in Brazilian agriculture in the last 30 years. However, its full adoption in lowland areas that are traditionally cultivated with flooded rice is still incipient (<5 %). The main reasons are associated with the soil hydromorphic condition and the management of highly recalcitrant residual crop biomass, demanding soil disturbance even occasionally. This review presents a historical survey about the soil management systems utilized in lowland areas in southern Brazil, emphasizing the experiences of NT adoption in areas with flooded rice. Results from studies focused on the main changes in chemical, physical, and microbiological soil properties due to NT adoption were addressed, as well as the NT effects on greenhouse gas emissions and crop yields. Finally, the main challenges and prospects for NT were discussed considering new emerging scenarios for flooded rice production in lowlands, especially soybean rotation and integrated agricultural production systems. No-tillage can increase the soil organic carbon, the cation exchangeable capacity and tends to promote the accumulation of nutrients as nitrogen in surface layers. Improvements in soil aggregation, porosity and water availability are usually observed in NT, but only if medium or long-term trials are considered. NT favors microbial activity in the shallower soil layer by promoting microbial biomass carbon (+45 %), microbial biomass nitrogen (+54 ... Mostrar Tudo |
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Thesagro: |
Arroz; Manejo do Solo; Oryza Sativa; Solo. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/232562/1/Artigo-No-tillage-for-flooded-rice-in-Brazilian.pdf
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Marc: |
LEADER 03240naa a2200265 a 4500
001 2140925
005 2022-03-24
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.36783/18069657rbcs20210102$2DOI
100 1 $aSOUSA, R. O. de
245 $aNo-tillage for flooded rice in Brazilian subtropical paddy fields$bhistory, challenges, advances and perspectives.$h[electronic resource]
260 $c2021
300 $a24 p.
500 $aFirst online.
520 $aNo-tillage (NT) has been one of the main advances related to soil management in Brazilian agriculture in the last 30 years. However, its full adoption in lowland areas that are traditionally cultivated with flooded rice is still incipient (<5 %). The main reasons are associated with the soil hydromorphic condition and the management of highly recalcitrant residual crop biomass, demanding soil disturbance even occasionally. This review presents a historical survey about the soil management systems utilized in lowland areas in southern Brazil, emphasizing the experiences of NT adoption in areas with flooded rice. Results from studies focused on the main changes in chemical, physical, and microbiological soil properties due to NT adoption were addressed, as well as the NT effects on greenhouse gas emissions and crop yields. Finally, the main challenges and prospects for NT were discussed considering new emerging scenarios for flooded rice production in lowlands, especially soybean rotation and integrated agricultural production systems. No-tillage can increase the soil organic carbon, the cation exchangeable capacity and tends to promote the accumulation of nutrients as nitrogen in surface layers. Improvements in soil aggregation, porosity and water availability are usually observed in NT, but only if medium or long-term trials are considered. NT favors microbial activity in the shallower soil layer by promoting microbial biomass carbon (+45 %), microbial biomass nitrogen (+54 %) and basal respiration (+54 %) compared to conventional tillage (CT), while the activity of extracellular enzymes also may be stimulated. Crop yield tends to be similar among the soil managements systems over time. Seasonal CH4 emissions might be reduced by 21 % with NT adoption without increasing N2O. Plant breeding and geotechnology advances associated with soybean market valuation intensified the introduction of this crop in paddy fields. The main challenge for the full adoption of NT is the need for soil tillage after rice harvesting to correct soil surface irregularities or manage rice straw. In the future, advances in plant breeding and drainage techniques probably will favor the expansion of NT in southern Brazil lowlands. The traditional system of flooded rice cultivation, based on CT and monoculture associated with beef cattle under extensive grazing, is no longer viable and will not be further established.
650 $aArroz
650 $aManejo do Solo
650 $aOryza Sativa
650 $aSolo
700 1 $aCARLOS, F. S.
700 1 $aSILVA, L. S. da
700 1 $aSCIVITTARO, W. B.
700 1 $aRIBEIRO, P. L.
700 1 $aLIMA, C. L. R. de
773 $tRevista Brasileira de Ciência do Solo$gv. 45, e0210102, 2021.
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Registro original: |
Embrapa Clima Temperado (CPACT) |
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