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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
26/11/2012 |
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Data da última atualização: |
10/03/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SCOPEL, E.; TRIOMPHE, B.; AFFHOLDER, F.; SILVA, F. A. M. da; CORBEELS, M.; XAVIER, J. H. V.; LAHMAR, R.; RECOUS, S.; BERNOUX, M.; BLANCHART, E.; MENDES, I. de C.; TOURDONNET, S. |
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Afiliação: |
ERIC SCOPEL, CIRAD; BERNARD TRIOMPHE, CIRAD; FRANÇOIS AFFHOLDER, CIRAD; FERNANDO ANTONIO MACENA DA SILVA, CPAC; MARC CORBEELS, CIRAD; JOSE HUMBERTO VALADARES XAVIER, CPAC; RABAH LAHMAR, CIRAD; SYLVIE RECOUS, INRA; MARTIAL BERNOUX, IRD; ERIC BLANCHART, IRD; IEDA DE CARVALHO MENDES, CPAC; STÉPHANE DE TOURDONNET, SUPAGRO. |
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Título: |
Conservation agriculture cropping systems in temperate and tropical conditions, performances and impacts. A review. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Agronomy for Sustainable Development, v. 33, n. 1, p. 113-130, Jan. 2013. |
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DOI: |
10.1007/s13593-012-0106-9 |
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Idioma: |
Inglês |
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Notas: |
Publicado online 05 set. 2012. |
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Conteúdo: |
Nowadays, in a context of climate change, economical uncertainties and social pressure to mitigate agriculture externalities, farmers have to adopt new cropping systems to achieve a sustainable and cost-effective grain production. Conservation agriculture consists of a range of cropping systems based on a combination of three main principles: (1) soil tillage reduction, (2) soil protection by organic residues and (3) diversification in crop rotation. Conservation agriculture has been promoted as a way to reduce production costs, soil erosion and soil fertility degradation under both tropical and temperate conditions. Conservation agriculture-based cropping systems have diffused widely under Brazilian large-scale farms? conditions and more recently in Europe in the context of medium-size mechanized farms. Their diffusion, however, is still limited under small-scale non-mechanized farms? conditions of tropical countries. To assess the advantages and limits of such new cropping systems, this article compares experiences with conservation agriculture from the tropical Cerrado region of Brazil and from temperate conditions of Europe. It focusses on agronomic performances, environmental impacts and economical results. Conservation agriculture systems appear to be interesting options to achieve sustainable and intensive crop production under different agroecological environments because they use efficiently available resources and maintain soil fertility. However, this mostly results from the permanent presence of an organic mulch on the soil surface and the incorporation of cover crops in the rotations. Such modifications require a significant reorganization of the production process at farm level, and when facing technical or socioeconomic constraints, most farmers usually opt for applying only partially the three main principles of conservation agriculture. Investigating more fully the consequences of such partial implementation of conservation agriculture principles on its actual efficiency and assessing the most efficient participatory approaches needed to adapt conservation agriculture principles to local conditions and farming systems are top priorities for future research. MenosNowadays, in a context of climate change, economical uncertainties and social pressure to mitigate agriculture externalities, farmers have to adopt new cropping systems to achieve a sustainable and cost-effective grain production. Conservation agriculture consists of a range of cropping systems based on a combination of three main principles: (1) soil tillage reduction, (2) soil protection by organic residues and (3) diversification in crop rotation. Conservation agriculture has been promoted as a way to reduce production costs, soil erosion and soil fertility degradation under both tropical and temperate conditions. Conservation agriculture-based cropping systems have diffused widely under Brazilian large-scale farms? conditions and more recently in Europe in the context of medium-size mechanized farms. Their diffusion, however, is still limited under small-scale non-mechanized farms? conditions of tropical countries. To assess the advantages and limits of such new cropping systems, this article compares experiences with conservation agriculture from the tropical Cerrado region of Brazil and from temperate conditions of Europe. It focusses on agronomic performances, environmental impacts and economical results. Conservation agriculture systems appear to be interesting options to achieve sustainable and intensive crop production under different agroecological environments because they use efficiently available resources and maintain soil fertility. However, this mostly resul... Mostrar Tudo |
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Palavras-Chave: |
Sistemas de cultivo. |
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Thesagro: |
Agricultura; Clima Temperado; Clima Tropical; Conservação. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03204naa a2200337 a 4500
001 1940543
005 2014-03-10
008 2013 bl uuuu u00u1 u #d
024 7 $a10.1007/s13593-012-0106-9$2DOI
100 1 $aSCOPEL, E.
245 $aConservation agriculture cropping systems in temperate and tropical conditions, performances and impacts. A review.
260 $c2013
500 $aPublicado online 05 set. 2012.
520 $aNowadays, in a context of climate change, economical uncertainties and social pressure to mitigate agriculture externalities, farmers have to adopt new cropping systems to achieve a sustainable and cost-effective grain production. Conservation agriculture consists of a range of cropping systems based on a combination of three main principles: (1) soil tillage reduction, (2) soil protection by organic residues and (3) diversification in crop rotation. Conservation agriculture has been promoted as a way to reduce production costs, soil erosion and soil fertility degradation under both tropical and temperate conditions. Conservation agriculture-based cropping systems have diffused widely under Brazilian large-scale farms? conditions and more recently in Europe in the context of medium-size mechanized farms. Their diffusion, however, is still limited under small-scale non-mechanized farms? conditions of tropical countries. To assess the advantages and limits of such new cropping systems, this article compares experiences with conservation agriculture from the tropical Cerrado region of Brazil and from temperate conditions of Europe. It focusses on agronomic performances, environmental impacts and economical results. Conservation agriculture systems appear to be interesting options to achieve sustainable and intensive crop production under different agroecological environments because they use efficiently available resources and maintain soil fertility. However, this mostly results from the permanent presence of an organic mulch on the soil surface and the incorporation of cover crops in the rotations. Such modifications require a significant reorganization of the production process at farm level, and when facing technical or socioeconomic constraints, most farmers usually opt for applying only partially the three main principles of conservation agriculture. Investigating more fully the consequences of such partial implementation of conservation agriculture principles on its actual efficiency and assessing the most efficient participatory approaches needed to adapt conservation agriculture principles to local conditions and farming systems are top priorities for future research.
650 $aAgricultura
650 $aClima Temperado
650 $aClima Tropical
650 $aConservação
653 $aSistemas de cultivo
700 1 $aTRIOMPHE, B.
700 1 $aAFFHOLDER, F.
700 1 $aSILVA, F. A. M. da
700 1 $aCORBEELS, M.
700 1 $aXAVIER, J. H. V.
700 1 $aLAHMAR, R.
700 1 $aRECOUS, S.
700 1 $aBERNOUX, M.
700 1 $aBLANCHART, E.
700 1 $aMENDES, I. de C.
700 1 $aTOURDONNET, S.
773 $tAgronomy for Sustainable Development$gv. 33, n. 1, p. 113-130, Jan. 2013.
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Embrapa Cerrados (CPAC) |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
03/12/2014 |
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Data da última atualização: |
04/12/2014 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
MARTINEZ-BALMORI, D.; SPACCINI, R.; AGUIAR, N. O.; NOVOTNY, E. H.; OLIVARES, F. L.; CANELLAS, L. P. |
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Afiliação: |
D. MARTINEZ-BALMORI, UNIVERSIDADE AGRARIA DE LA HABANA; R. SPACCINI, CERMANU, Università di Napoli Federico; N. O. AGUIAR, UENF; ETELVINO HENRIQUE NOVOTNY, CNPS; F. L. OLIVARES, UENF; LUCIANO P. CANELLAS, UENF. |
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Título: |
Molecular characteristics and bioactivity of humic acids isolated from vermicomposts. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
In: MEETING OF THE INTERNATIONAL HUMIC SUBSTANCES SOCIETY, 17., 2014, Ioannina. Natural organic matter: structure-dynamics innovative applications: book of abstracts. Ioannina: University of Ioannina, 2014. p. 335-336. |
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Idioma: |
Inglês |
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Conteúdo: |
Vermitechnology is an effective composting method which transforms different residual biomasses into nutrient rich organic fertilizer. In fact, the mature vermicompost is a renewed organic source suitable to provide humic substances with high biological activity. The chemical characteristics of humic acids isolated from different vermicomposts, produced with cattle manure, sugarcane bagasse, sunflower cake from seed oil extraction and filter cake from sugarcane factory, were accessed by thermochemolysis and 13C solid state NMR spectroscopy. More than 200 different molecules were found and were possible to identify chemical markers on humic acids according the nature of organic source. The large hydrophobic character of humic extracts and the preservation of altered lignins derivatives confer to HAs the ability to induce lateral root emergence in maize seedlings. |
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Palavras-Chave: |
Ácido húmico; Bioatividade de planta; Vermicomposto. |
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Thesaurus NAL: |
Vermicomposts. |
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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/112897/1/IHSS-Meeting-p.-335-336.pdf
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Marc: |
LEADER 01700nam a2200217 a 4500
001 2001419
005 2014-12-04
008 2014 bl uuuu u00u1 u #d
100 1 $aMARTINEZ-BALMORI, D.
245 $aMolecular characteristics and bioactivity of humic acids isolated from vermicomposts.$h[electronic resource]
260 $aIn: MEETING OF THE INTERNATIONAL HUMIC SUBSTANCES SOCIETY, 17., 2014, Ioannina. Natural organic matter: structure-dynamics innovative applications: book of abstracts. Ioannina: University of Ioannina, 2014. p. 335-336.$c2014
520 $aVermitechnology is an effective composting method which transforms different residual biomasses into nutrient rich organic fertilizer. In fact, the mature vermicompost is a renewed organic source suitable to provide humic substances with high biological activity. The chemical characteristics of humic acids isolated from different vermicomposts, produced with cattle manure, sugarcane bagasse, sunflower cake from seed oil extraction and filter cake from sugarcane factory, were accessed by thermochemolysis and 13C solid state NMR spectroscopy. More than 200 different molecules were found and were possible to identify chemical markers on humic acids according the nature of organic source. The large hydrophobic character of humic extracts and the preservation of altered lignins derivatives confer to HAs the ability to induce lateral root emergence in maize seedlings.
650 $aVermicomposts
653 $aÁcido húmico
653 $aBioatividade de planta
653 $aVermicomposto
700 1 $aSPACCINI, R.
700 1 $aAGUIAR, N. O.
700 1 $aNOVOTNY, E. H.
700 1 $aOLIVARES, F. L.
700 1 $aCANELLAS, L. P.
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