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Registro Completo |
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Biblioteca(s): |
Embrapa Agropecuária Oeste; Embrapa Cerrados; Embrapa Soja; Embrapa Trigo. |
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Data corrente: |
03/06/1996 |
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Data da última atualização: |
14/01/1998 |
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Autoria: |
REIS, E. M.; FORCELINI, C. A. |
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Título: |
Manual de fungicidas: guia para o controle de doencas de plantas. |
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Edição: |
3.ed.rev.ampl. |
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Ano de publicação: |
1994 |
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Fonte/Imprenta: |
Passo Fundo: Pe. Berthier, 1994. |
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Páginas: |
101p. |
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Idioma: |
Português |
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Conteúdo: |
Introducao. Conceito. Fungitoxicidade. Classificacao dos fungicidas. Quanto ao modo de acao. Classificacao quimica dos fungicidas. Especificidade e espectro de acao. Fitotoxidade. Formulacoes de fungicidas. Concentrado emulsionavel. Po molhavel. Suspensao concentrada. Po. Espalhantes e adesionantes. Principais usos dos fungicidas. Desinfestacao do solo. Tratamento de sementes. Tratamento de orgaos aereos. Preservacao de frutos pos-colheita. Preservacao de madeira, postes e mouroes. Tratamento superficial. Resistencia de fungos a fungicidas. Fatores envolvidos na resistencia de fungos a fungicidas. Estrategias anti-resistencia. Cuidados com o uso de fungicidas. Classes toxicologicas. Precaucoes gerais. Primeiros socorros. Enderecos uteis. Apendice. Fungicidas, principais caracteristicas. Calda bordalesa. Calda sulfocalcica. Antibioticos. Espalhantes e adesionantes. |
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Palavras-Chave: |
Brasil; Control; Controle; Disease; Funcigicides; Fungicide; Fungus; Guia; Guide; Plant; Plant disease; Plant diseases; Rio Grande do Sul. |
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Thesagro: |
Controle Químico; Doença; Doença de Planta; Fungicida; Fungo; Planta. |
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Thesaurus Nal: |
Brazil; chemical control; fungi. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01834nam a2200409 a 4500
001 1557747
005 1998-01-14
008 1994 bl uuuu 00u1 u #d
100 1 $aREIS, E. M.
245 $aManual de fungicidas$bguia para o controle de doencas de plantas.
250 $a3.ed.rev.ampl.
260 $aPasso Fundo: Pe. Berthier$c1994
300 $a101p.
520 $aIntroducao. Conceito. Fungitoxicidade. Classificacao dos fungicidas. Quanto ao modo de acao. Classificacao quimica dos fungicidas. Especificidade e espectro de acao. Fitotoxidade. Formulacoes de fungicidas. Concentrado emulsionavel. Po molhavel. Suspensao concentrada. Po. Espalhantes e adesionantes. Principais usos dos fungicidas. Desinfestacao do solo. Tratamento de sementes. Tratamento de orgaos aereos. Preservacao de frutos pos-colheita. Preservacao de madeira, postes e mouroes. Tratamento superficial. Resistencia de fungos a fungicidas. Fatores envolvidos na resistencia de fungos a fungicidas. Estrategias anti-resistencia. Cuidados com o uso de fungicidas. Classes toxicologicas. Precaucoes gerais. Primeiros socorros. Enderecos uteis. Apendice. Fungicidas, principais caracteristicas. Calda bordalesa. Calda sulfocalcica. Antibioticos. Espalhantes e adesionantes.
650 $aBrazil
650 $achemical control
650 $afungi
650 $aControle Químico
650 $aDoença
650 $aDoença de Planta
650 $aFungicida
650 $aFungo
650 $aPlanta
653 $aBrasil
653 $aControl
653 $aControle
653 $aDisease
653 $aFuncigicides
653 $aFungicide
653 $aFungus
653 $aGuia
653 $aGuide
653 $aPlant
653 $aPlant disease
653 $aPlant diseases
653 $aRio Grande do Sul
700 1 $aFORCELINI, C. A.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Tipo/Formato |
Classificação |
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Registro |
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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. |
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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Circulação/Nível: |
A - 1 |
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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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Embrapa Amazônia Oriental (CPATU) |
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