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Registro Completo |
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
01/12/2023 |
Data da última atualização: |
01/12/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
ABRELL, T.; NAUDIN, K.; BIANCHI, F. J. J. A.; ARAGAO, D. V.; TITTONELL, P.; CORBEELS, M. |
Afiliação: |
THOMAS ABRELL, CENTRE DE COOPÉRATION INTERNATIONALE EN RECHERCHE AGRONOMIQUE POUR LE DÉVELOPPEMENT; KRISHNA NAUDIN, CENTRE DE COOPÉRATION INTERNATIONALE EN RECHERCHE AGRONOMIQUE POUR LE DÉVELOPPEMENT; FELIX J. J. A. BIANCHI, WAGENINGEN UNIVERSITY AND RESEARCH; DEBORA VEIGA DE ARAGAO, CPATU; PABLO TITTONELL, CENTRE DE COOPÉRATION INTERNATIONALE EN RECHERCHE AGRONOMIQUE POUR LE DÉVELOPPEMENT; MARC CORBEELS, CENTRE DE COOPÉRATION INTERNATIONALE EN RECHERCHE AGRONOMIQUE POUR LE DÉVELOPPEMENT. |
Título: |
Shifting cultivation in decline: An analysis of soil fertility and weed pressure in intensified cropping systems in Eastern Amazon. |
Ano de publicação: |
2024 |
Fonte/Imprenta: |
Agriculture, Ecosystems and Environment, v. 360, 108793, 2024. |
DOI: |
https://doi.org/10.1016/j.agee.2023.108793 |
Idioma: |
Inglês |
Conteúdo: |
Reconciling forest preservation and agricultural production is a major challenge. In Brazil, environmental laws have been introduced to reduce forest degradation associated with the expansion of agriculture. However, these laws are constraining small-scale family farmers who rely on cassava produced in shifting cultivation. Faced by scarcity of land, farmers are reducing the fallow periods on their farms. In this study, our hypothesis was that the reduction of the fallow period in shifting cultivation systems leads to a depletion of soil fertility and an increase in weed pressure. In the Brazilian Eastern Amazon region, soil fertility and weed infestation indicators were assessed in 36 cassava fields under shifting cultivation with different land-use histories. The frequency of cultivation of the fields in the past 10 years ranged from 1 to 7 and averaged 3.7 ± 2.3. The results show that the most frequently cultivated fields had lower soil fertility, indicated by lower soil organic carbon, total nitrogen and exchangeable potassium and pH. In addition, labor input for weeding and weeding frequency increased with the frequency of cultivation of the fields, indicating that weed pressure increased with intensified crop cultivation and shorter fallow periods. The findings of this study make clear that the current trend of reducing the fallow period in the Eastern Amazon is a threat to the sustainability and productivity of the local shifting cultivation systems. There is an urgent need for alternative production systems that allow for a better weed control and that contribute to restoring and maintaining soil fertility. MenosReconciling forest preservation and agricultural production is a major challenge. In Brazil, environmental laws have been introduced to reduce forest degradation associated with the expansion of agriculture. However, these laws are constraining small-scale family farmers who rely on cassava produced in shifting cultivation. Faced by scarcity of land, farmers are reducing the fallow periods on their farms. In this study, our hypothesis was that the reduction of the fallow period in shifting cultivation systems leads to a depletion of soil fertility and an increase in weed pressure. In the Brazilian Eastern Amazon region, soil fertility and weed infestation indicators were assessed in 36 cassava fields under shifting cultivation with different land-use histories. The frequency of cultivation of the fields in the past 10 years ranged from 1 to 7 and averaged 3.7 ± 2.3. The results show that the most frequently cultivated fields had lower soil fertility, indicated by lower soil organic carbon, total nitrogen and exchangeable potassium and pH. In addition, labor input for weeding and weeding frequency increased with the frequency of cultivation of the fields, indicating that weed pressure increased with intensified crop cultivation and shorter fallow periods. The findings of this study make clear that the current trend of reducing the fallow period in the Eastern Amazon is a threat to the sustainability and productivity of the local shifting cultivation systems. There is an urgen... Mostrar Tudo |
Palavras-Chave: |
Produção sustentável; Sustainable production. |
Thesagro: |
Conservação do Solo; Erva Daninha; Fertilidade do Solo; Mandioca. |
Thesaurus Nal: |
Cassava; Soil conservation; Weed control. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 02591naa a2200301 a 4500 001 2158999 005 2023-12-01 008 2024 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.agee.2023.108793$2DOI 100 1 $aABRELL, T. 245 $aShifting cultivation in decline$bAn analysis of soil fertility and weed pressure in intensified cropping systems in Eastern Amazon.$h[electronic resource] 260 $c2024 520 $aReconciling forest preservation and agricultural production is a major challenge. In Brazil, environmental laws have been introduced to reduce forest degradation associated with the expansion of agriculture. However, these laws are constraining small-scale family farmers who rely on cassava produced in shifting cultivation. Faced by scarcity of land, farmers are reducing the fallow periods on their farms. In this study, our hypothesis was that the reduction of the fallow period in shifting cultivation systems leads to a depletion of soil fertility and an increase in weed pressure. In the Brazilian Eastern Amazon region, soil fertility and weed infestation indicators were assessed in 36 cassava fields under shifting cultivation with different land-use histories. The frequency of cultivation of the fields in the past 10 years ranged from 1 to 7 and averaged 3.7 ± 2.3. The results show that the most frequently cultivated fields had lower soil fertility, indicated by lower soil organic carbon, total nitrogen and exchangeable potassium and pH. In addition, labor input for weeding and weeding frequency increased with the frequency of cultivation of the fields, indicating that weed pressure increased with intensified crop cultivation and shorter fallow periods. The findings of this study make clear that the current trend of reducing the fallow period in the Eastern Amazon is a threat to the sustainability and productivity of the local shifting cultivation systems. There is an urgent need for alternative production systems that allow for a better weed control and that contribute to restoring and maintaining soil fertility. 650 $aCassava 650 $aSoil conservation 650 $aWeed control 650 $aConservação do Solo 650 $aErva Daninha 650 $aFertilidade do Solo 650 $aMandioca 653 $aProdução sustentável 653 $aSustainable production 700 1 $aNAUDIN, K. 700 1 $aBIANCHI, F. J. J. A. 700 1 $aARAGAO, D. V. 700 1 $aTITTONELL, P. 700 1 $aCORBEELS, M. 773 $tAgriculture, Ecosystems and Environment$gv. 360, 108793, 2024.
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Embrapa Amazônia Oriental (CPATU) |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
01/09/2022 |
Data da última atualização: |
01/09/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
FANALLI, S. L.; SILVA, B. P. M. DA; GOMES, J. D.; CICONELLO, F. N.; ALMEIDA, V. V. DE; FREITAS, F. A. O.; MOREIRA, G. C. M.; VIGNATO, B. S.; AFONSO, J.; REECY, J.; KOLTES, J.; KOLTES, D.; REGITANO, L. C. de A.; BAILEIRO, J. C. DE C.; FREITAS, L.; COUTINHO, L. L.; FUKUMASU, H.; ALENCAR, S. M. DE; LUCHIARI FILHO, A.; CESAR, A. S. M. |
Afiliação: |
SIMARA LARISSA FANALLI, University of São Paulo; BRUNA PEREIRA MARTINS DA SILVA, University of São Paulo; JULIA DEZEN GOMES, University of São Paulo; FERNANDA NERY CICONELLO, University of São Paulo; VIVIAN VEZZONI DE ALMEIDA, Federal University of Goiás; FELIPE ANDRÉ OLIVEIRA FREITAS, University of São Paulo; GABRIEL COSTA MONTEIRO MOREIRA, University of Liège; BÁRBARA SILVA-VIGNATO, University of São Paulo; JULIANA AFONSO, University Federal of São Carlos; JAMES REECY, Iowa State University; JAMES KOLTES, Iowa State University; DAWN KOLTES, Iowa State University; LUCIANA CORREIA DE ALMEIDA REGITANO, CPPSE; JÚLIO CESAR DE CARVALHO BAILEIRO, University of São Paulo; LUCIANA FREITAS, DB Genética de Suínos; LUIZ LEHMANN COUTINHO, University of São Paulo; HEIDGE FUKUMASU, University of São Paulo; SEVERINO MATIAS DE ALENCAR, University of São Paulo; ALBINO LUCHIARI FILHO, University of São Paulo; ALINE SILVA MELLO CESAR, University of São Paulo. |
Título: |
Effect of dietary soybean oil inclusion on liver-related transcription factors in a pig model for metabolic diseases. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Scientific Reports, v. 12, 10318, jun. 2022. |
Páginas: |
10 p. |
DOI: |
https://doi.org/10.1038/s41598-022-14069-1 |
Idioma: |
Inglês |
Conteúdo: |
Dietary fatty acids (FA) are components of the lipids, which contribute to membrane structure, energy input, and biological functions related to cellular signaling and transcriptome regulation. However, the consumers still associate dietary FA with fat deposition and increased occurrence of metabolic diseases such as obesity and atherosclerosis. Previous studies already demonstrated that some fatty acids are linked with inflammatory response, preventing metabolic diseases. To better understand the role of dietary FA on metabolic diseases, for the first time, a study to identify key transcription factors (TF) involved in lipid metabolism and inflammatory response by transcriptome analysis from liver samples of animal models was performed. The key TF were identified by functional enrichment analysis from the list of differentially expressed genes identified in liver samples between 35 pigs fed with 1.5% or 3.0% soybean oil. The functional enrichment analysis detected TF linked to lipid homeostasis and inflammatory response, such as RXRA, EGFR, and SREBP2 precursor. These findings demonstrated that key TF related to lipid metabolism could be modulated by dietary inclusion of soybean oil. It could contribute to nutrigenomics research field that aims to elucidate dietary interventions in animal and human health, as well as to drive food technology and science. |
Palavras-Chave: |
Dietary FA on metabolic diseases; Dietary fatty acids; Dietary interventions; Human metabolic diseases; Lipid homeostasis; Transcriptome profile of animal models. |
Thesaurus NAL: |
Lipid metabolism; Nutrigenomics. |
Categoria do assunto: |
Q Alimentos e Nutrição Humana |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1145965/1/EffectDietarySoybean.pdf
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Marc: |
LEADER 02791naa a2200469 a 4500 001 2145965 005 2022-09-01 008 2022 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1038/s41598-022-14069-1$2DOI 100 1 $aFANALLI, S. L. 245 $aEffect of dietary soybean oil inclusion on liver-related transcription factors in a pig model for metabolic diseases.$h[electronic resource] 260 $c2022 300 $a10 p. 520 $aDietary fatty acids (FA) are components of the lipids, which contribute to membrane structure, energy input, and biological functions related to cellular signaling and transcriptome regulation. However, the consumers still associate dietary FA with fat deposition and increased occurrence of metabolic diseases such as obesity and atherosclerosis. Previous studies already demonstrated that some fatty acids are linked with inflammatory response, preventing metabolic diseases. To better understand the role of dietary FA on metabolic diseases, for the first time, a study to identify key transcription factors (TF) involved in lipid metabolism and inflammatory response by transcriptome analysis from liver samples of animal models was performed. The key TF were identified by functional enrichment analysis from the list of differentially expressed genes identified in liver samples between 35 pigs fed with 1.5% or 3.0% soybean oil. The functional enrichment analysis detected TF linked to lipid homeostasis and inflammatory response, such as RXRA, EGFR, and SREBP2 precursor. These findings demonstrated that key TF related to lipid metabolism could be modulated by dietary inclusion of soybean oil. It could contribute to nutrigenomics research field that aims to elucidate dietary interventions in animal and human health, as well as to drive food technology and science. 650 $aLipid metabolism 650 $aNutrigenomics 653 $aDietary FA on metabolic diseases 653 $aDietary fatty acids 653 $aDietary interventions 653 $aHuman metabolic diseases 653 $aLipid homeostasis 653 $aTranscriptome profile of animal models 700 1 $aSILVA, B. P. M. DA 700 1 $aGOMES, J. D. 700 1 $aCICONELLO, F. N. 700 1 $aALMEIDA, V. V. DE 700 1 $aFREITAS, F. A. O. 700 1 $aMOREIRA, G. C. M. 700 1 $aVIGNATO, B. S. 700 1 $aAFONSO, J. 700 1 $aREECY, J. 700 1 $aKOLTES, J. 700 1 $aKOLTES, D. 700 1 $aREGITANO, L. C. de A. 700 1 $aBAILEIRO, J. C. DE C. 700 1 $aFREITAS, L. 700 1 $aCOUTINHO, L. L. 700 1 $aFUKUMASU, H. 700 1 $aALENCAR, S. M. DE 700 1 $aLUCHIARI FILHO, A. 700 1 $aCESAR, A. S. M. 773 $tScientific Reports$gv. 12, 10318, jun. 2022.
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