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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
01/12/2023 |
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Data da última atualização: |
01/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ABRELL, T.; NAUDIN, K.; BIANCHI, F. J. J. A.; ARAGAO, D. V.; TITTONELL, P.; CORBEELS, M. |
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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. |
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Título: |
Shifting cultivation in decline: An analysis of soil fertility and weed pressure in intensified cropping systems in Eastern Amazon. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Agriculture, Ecosystems and Environment, v. 360, 108793, 2024. |
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DOI: |
https://doi.org/10.1016/j.agee.2023.108793 |
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Idioma: |
Inglês |
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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 |
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Palavras-Chave: |
Produção sustentável; Sustainable production. |
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Thesagro: |
Conservação do Solo; Erva Daninha; Fertilidade do Solo; Mandioca. |
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Thesaurus Nal: |
Cassava; Soil conservation; Weed control. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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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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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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| Registros recuperados : 10 | |
| 3. |  | RODRIGUES, A. de A.; PERES NETTO, D.; FLORES, O. da S.; FERREIRA JUNIOR, A. G.; FERREIRA, R. de P.; FREITAS, A. R. de. Alfafa em pastejo como parte da dieta de vacas leiteiras de alta produção. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 46., 2009, Maringá. Anais... Maringa: SBZ:UEM, 2009.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 4. | | PERES NETTO, D.; RODRIGUES, A. de A.; VINHOLIS, M. de M. B.; FERREIRA, R. de P.; NOGUEIRA, P. C.; CAMARGO, A. C. de; WECHSLER, F. S. Alfafa em pastejo como parte da dieta de vacas leiteiras: composição do leite e avaliação econômica. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 45., 2008, Lavras, MG. Anais... Lavras: SBZ: UFLA, 2008 1 CD-ROM| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 5. | | PERES NETTO, D.; RODRIGUES, A. de A.; FERREIRA, R. de P.; RIBEIRO, A. R. B; CHIMENEZ, V. de O.; NOGUEIRA, P. C. Comportamento diurno de vacas leiteiras em pastagem de alfafa suplementadas com silagem de milho e concentrado. 1. Variação horária em pastejo. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 46., 2009, Maringá. Anais... Maringa: SBZ:UEM, 2009. 1 CD-ROM| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 6. | | PERES NETTO, D.; RODRIGUES, A. de A.; FERREIRA, R. de P.; RIBEIRO, A. R. B.; CHIMENEZ, V. de O.; NOGUEIRA, P. C. Comportamento diurno de vacas leiteiras em pastagem de alfafa suplementadas com silagem de milho e concentrado. 2. Tempo total em pastejo. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 46., 2009, Maringá. Anais... Maringa: SBZ:UEM, 2009. 1 CD-ROM| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 7. | | RODRIGUES, A. de A.; FLORES, O. da S.; FERREIRA JUNIOR, A. G.; PERES NETTO, D.; FERREIRA, R. de P.; PEDROSO, A. de F. Consumo de matéria seca e ganho de peso de novilhas leiteiras alimentadas com cana-de-açúcar e alfafa em pastejo. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 46., 2009, Maringá. Anais... Maringa: SBZ:UEM, 2009.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 8. | | PERES NETTO, D.; RIBEIRO, A. R. B.; RODRIGUES, A. de A.; FERREIRA, R. de P.; MENDONCA, F. C.; FREITAS, A. R. de; CAMPANA, M.; WECHSLER, F. S. Diurnal behavior of dairy cows on alfalfa pastures supplemented with corn silage and concentrate. Arquivo Brasileiro Medicina Veterinaria Zootecnia, v. 66, n. 3, p. 837-844, 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 9. | | PERES NETTO, D.; RODRIGUES, A. de A.; WESCHER, F. S.; FERREIRA, R. de P.; MENDONÇA, F. C.; FREITAS, A. R. de. Desempenho de vacas leiteiras em pastagem de alfafa suplementada com silagem de milho e concentrado e viabilidade econômica do sistema. Arquivo Brasileiro de Medicina Veterinária Zootecnia, v. 63, n. 2, p. 399-407, 2011.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 10. | | PERES NETTO, D.; RODRIGUES, A. de A.; FERREIRA, R. de P.; NOGUEIRA, P. C.; MENDONÇA, F. C.; RASSINI, J. B.; FREITAS, A. R. de. Utilização da alfafa em pastejo como parte da dieta de vacas leiteiras. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 45., 2008, Lavras, MG. Anais... Lavras: SBZ: UFLA, 2008 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| Registros recuperados : 10 | |
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