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| Registros recuperados : 98 | |
| 62. |  | VIELHAUER, K.; SÁ, T. D. de A.; KANASHIRO, M.; DENICH, M.; VLEK, P. L. G. Innovative technologies towards improving use of natural resources by smallholders in Eastern Amazonia, Brasil. In: CONVENCION TROPICO'99: GEOGRAFIA, METEOROLOGIA Y AGRICULTURA TROPICAL, 1999, Habana. Programa/Resumenes. Habana: IGT: INSMET: IIFAT, 1999. p. 393.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 64. | | WIESENMULLER, J.; GRUNEBERG, W.; SANTOS, W.; DENICH, M.; VLEK, P. L. G. Modeling of fine root distribution under secondary vegetation in NE Amazonia: a qualitative and quantitative assessment. In: SHIFT-WORKSHOP, 3., 1998, Manaus. Program, abstracts of presentation and posters. [S.l.]: SHIFT, 1998. A25.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 65. | | KLINGE, A. T.; PAPARCIKOVA, L.; CORDEIRO, M. dos R.; VLEK, P. L. G. Quantification of biological nitrogen fixation in primary forest and secondary vegetation in Ne Amazonia. In: LIEBEREI, R.; BIANCHI, H.; VOB, K., ed. Proceedings of the third SHIFT-Workshop, Manaus march 15-19, 1998. Bonn: Bundesministerium fur Bildung und Forschung, 1998. p.131-136.| Biblioteca(s): Embrapa Florestas. |
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| 66. | | THIELEN-KLINGEM, A.; PAPARCIKOVA, L.; CORDEIRO, M. dos R.; VLEK, P. L. G. Quantification of biological nitrogen fixation in primary forest and secondary vegetation in NE Amazonia. In: SHIFT-WORKSHOP, 3., 1998, Manaus. Proceedings... Hamburg: GKSS, 1998. p. 131-136. Publicado também em: SHIFT-WORKSHOP, 3., 1998, Manaus. Program, abstracts of presentation and posters. [S.l.]: SHIFT, 1998. A6.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 68. | | DENICH, M.; VLEK, P. L. G.; SÁ, T. D. de A.; VIELHAUER, K.; LUCKE, W. A research concept for the development of alternatives to slash-and-burn agriculture in the Eastern Amazon region. In: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS - ARCHIEVEMENTS AND PROSPECTS OF COOPERATIVE RESEARCH, 2000, Hamburg. Proceedings. Geesthacht: GKSS, 2002. p. 689-696. Editado por Reinhard Lieberei, Helmut Bianchi, Vera Boehm, Christoph Reisdorff.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 71. | | SOMMER, R.; CARVALHO, E. J. M.; VLEK, P. L. G.; FOLSTER, H. Soil water extraction through a secondary vegetation during the dry season in 1997 in Eastern Amazonia. In: LIEBEREI, R.; BIANCHI, H.; VOB, K., ed. Proceedings of the third SHIFT-Workshop, Manaus march 15-19, 1998. Bonn: Bundesministerium fur Bildung und Forschung, 1998. p.177-179.| Biblioteca(s): Embrapa Florestas. |
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| 73. | | SOMMER, R.; VLEK, P. L. G.; FOLSTER, H.; SÁ, T. D. de A. Slash and mulch to reduce nutrient losses in shifting cultivation in the Eastern Amazon. In: SEMINÁRIO SOBRE MANEJO DA VEGETAÇÃO SECUNDÁRIA PARA A SUSTENTABILIDADE DA AGRICULTURA FAMILIAR DA EMBRAPA AMAZÔNIA ORIENTAL, 1999, Belém, PA. Anais. Belém, PA: Embrapa Amazônia Oriental: CNPq, 2000. p. 80-82. (Embrapa Amazônia Oriental. Documentos, 69).| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 75. | | SÁ, T. D. de A.; VIELHAUER, K.; KANASHIRO, M.; DENICH, M.; VLEK, P. L. G. Towards improving natural resources use in Eastern Amazonia through a modified sequential agroforestry system. In: CONGRESSO BRASILEIRO EM SISTEMAS AGROFLORESTAIS, 2., 1998, Belém, PA. Sistemas agroflorestais no contexto da qualidade ambiental e competitividade: resumos expandidos. Belém, PA: Embrapa-CPATU, 1998. p. 95-100.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 76. | | SOMMER, R.; SÁ, T. D. A. de; VIELHAUER, K.; VLEK, P. L. G.; FÖLSTER, H. Water and nutrient balance under slash-and-burn agriculture in the eastern Amazon, Brasil - the role of a deep rooting fallow vegetation. In: HORST, W. J.; SCHENK, M. K.; BURKERT, A.; CLAASSEN, N.; FLESSA, H.; FROMMER, W. B.; GOLDBACH, H.; OLFS, H.-W.; ROMHELD, V.; SATTELMACHER, B.; SCHMIDHALTER, U.; SCHUBERT, S.; WIRÉN, N. v.; WITTENMAYER, L. (Ed.). Plant nutrition: food security and sustainability of agro-ecosystems through basic and applied research. Dordrecht: Kluwer, 2001. p. 1014-1015. Proceedings of 14º International Plant Nutrition Colloquium| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 77. | | KANASHIRO, M.; SÁ, T. D. de A.; VIELHAUER, K.; DENICH, M.; VLEK, P. L. G.; SERRAO, E. A. S. Future plans of the project "Capoeira" (ENV 25). In: SHIFT-WORKSHOP, 3., 1998, Manaus. Program, abstracts of presentation and posters. [S.l.]: SHIFT, 1998. P4.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 78. | | KATO, O. R.; KATO, M. do S. A.; PARRY, M. M.; DENICH, M.; VLEK, P. L. G. Fire-free alternatives to slash-and-burn for shifting cultivation of the eastern amazon. 2. Selection of adapted cultivars. In: SHIFT-WORKSHOP, 3., 1998, Manaus. Program, abstracts of presentation and posters. [S.l.]: SHIFT, 1998. A10.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 79. | | KATO, M. do S. A.; KATO, O. R.; PARRY, M. M.; DENICH, M.; VLEK, P. L. G. Fire-free alternatives to slash-and-burn for shifting cultivation in the eastern amazon region. 1. The role fertilizers. In: SHIFT-WORKSHOP, 3., 1998, Manaus. Program, abstracts of presentation and posters. [S.l.]: SHIFT, 1998. A4.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| Registros recuperados : 98 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
15/09/2003 |
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Data da última atualização: |
13/05/2024 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
VIELHAUER, K.; DENICH, M.; SÁ, T. D. de A.; KATO, O. R.; KATO, M. do S. A.; BRIENZA JUNIOR, S.; VLEK, P. L. G. |
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Afiliação: |
KONRAD VIELHAUER, UNIVERSITY OF BONN; MANFRED DENICH, UNIVERSITY OF BONN; TATIANA DEANE DE ABREU SA, CPATU; OSVALDO RYOHEI KATO, CPATU; MARIA DO SOCORRO ANDRADE KATO, CPATU; SILVIO BRIENZA JUNIOR, CPATU; PAUL L. G. VLEK, UNIVERSITY OF BONN. |
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Título: |
Land-use in a mulch-based farming system of small holders in the eastern Amazon. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
In: CONFERENCE ON INTERNATIONAL AGRICULTURAL RESEARCH FOR DEVELOPMENT, 2001, Bonn. Deustscher tropentag 2001: proceeding. Bonn: University of Bonn, 2001. |
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Páginas: |
Não paginado. |
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Idioma: |
Inglês |
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Conteúdo: |
Burning is a commonly used method to clear land for cropping, especially in regions with shifting cultivation. Due to population growth with the resulting intensified land use, it is mostly combined with a shortening of the fallow periods. Both burning and the shortened fallow period are the principal causes of declining soil fertility, and they are symptomatic for Eastern Amazonian agriculture. Based on the assumption that shifting cultivation will be maintained as the basic land-use system, these two adverse factors have to be improved in order to achieve reasonable and increased sustainable productivity. In the framework of a bilateral German-Brazilian research project, mechanized mulching technologies were developed to carry out fire-free land clearing by cutting and chopping the tree-rich fallow vegetation creating a mulch layer. Besides preserving organic matter and mineral nutrients, mulching permits land preparation at any time of the year, as, in contrast to burning, it does not depend on the dry season. Enriching the fallow vegetation with fast growing trees enhances the effect of mulching by increasing biomass: 25 t/ha/year as compared to natural fallow with 10 t/ha/year during the linear growth phase in the first 2 - 3 years. When putting these technologies into practice, the demand on differently behaving nutrient stocks in mulch-based systems has to be met. On the other hand, fire-free land preparation allows for flexible, alternative land utilization practices. Both factors lead to new crop-fallow scenarios where land use is intensified whilst the basic principles of shifting cultivation are maintained. In particular: 1) fallow biomass increase by enrichment reduces the fallow period from 4 - 6 years to 2 years, 2) slow nutrient release from the mulch layer allows highly demanding crops to be planted at the end of the cropping period low mineral fertilizer input is desired, 3) an additional cropping period becomes possible and reduces the land preparation time by half, 4) independent of the dry season crops can be planted taking climate and market demands into consideration, and 5) perennial cash crops can be integrated into the crop rotation. MenosBurning is a commonly used method to clear land for cropping, especially in regions with shifting cultivation. Due to population growth with the resulting intensified land use, it is mostly combined with a shortening of the fallow periods. Both burning and the shortened fallow period are the principal causes of declining soil fertility, and they are symptomatic for Eastern Amazonian agriculture. Based on the assumption that shifting cultivation will be maintained as the basic land-use system, these two adverse factors have to be improved in order to achieve reasonable and increased sustainable productivity. In the framework of a bilateral German-Brazilian research project, mechanized mulching technologies were developed to carry out fire-free land clearing by cutting and chopping the tree-rich fallow vegetation creating a mulch layer. Besides preserving organic matter and mineral nutrients, mulching permits land preparation at any time of the year, as, in contrast to burning, it does not depend on the dry season. Enriching the fallow vegetation with fast growing trees enhances the effect of mulching by increasing biomass: 25 t/ha/year as compared to natural fallow with 10 t/ha/year during the linear growth phase in the first 2 - 3 years. When putting these technologies into practice, the demand on differently behaving nutrient stocks in mulch-based systems has to be met. On the other hand, fire-free land preparation allows for flexible, alternative land utilization practices... Mostrar Tudo |
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Palavras-Chave: |
Brasil; Pará; Região Bragantina; Tipitamba. |
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Thesagro: |
Cultivo Migratório; Pequeno Produtor; Sistema de Cultivo; Uso da Terra. |
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Thesaurus NAL: |
Amazonia. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/55838/1/LandUseMulch-resumo.pdf
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|
Marc: |
LEADER 03137nam a2200301 a 4500
001 1404102
005 2024-05-13
008 2001 bl uuuu u00u1 u #d
100 1 $aVIELHAUER, K.
245 $aLand-use in a mulch-based farming system of small holders in the eastern Amazon.$h[electronic resource]
260 $aIn: CONFERENCE ON INTERNATIONAL AGRICULTURAL RESEARCH FOR DEVELOPMENT, 2001, Bonn. Deustscher tropentag 2001: proceeding. Bonn: University of Bonn$c2001
300 $aNão paginado.
520 $aBurning is a commonly used method to clear land for cropping, especially in regions with shifting cultivation. Due to population growth with the resulting intensified land use, it is mostly combined with a shortening of the fallow periods. Both burning and the shortened fallow period are the principal causes of declining soil fertility, and they are symptomatic for Eastern Amazonian agriculture. Based on the assumption that shifting cultivation will be maintained as the basic land-use system, these two adverse factors have to be improved in order to achieve reasonable and increased sustainable productivity. In the framework of a bilateral German-Brazilian research project, mechanized mulching technologies were developed to carry out fire-free land clearing by cutting and chopping the tree-rich fallow vegetation creating a mulch layer. Besides preserving organic matter and mineral nutrients, mulching permits land preparation at any time of the year, as, in contrast to burning, it does not depend on the dry season. Enriching the fallow vegetation with fast growing trees enhances the effect of mulching by increasing biomass: 25 t/ha/year as compared to natural fallow with 10 t/ha/year during the linear growth phase in the first 2 - 3 years. When putting these technologies into practice, the demand on differently behaving nutrient stocks in mulch-based systems has to be met. On the other hand, fire-free land preparation allows for flexible, alternative land utilization practices. Both factors lead to new crop-fallow scenarios where land use is intensified whilst the basic principles of shifting cultivation are maintained. In particular: 1) fallow biomass increase by enrichment reduces the fallow period from 4 - 6 years to 2 years, 2) slow nutrient release from the mulch layer allows highly demanding crops to be planted at the end of the cropping period low mineral fertilizer input is desired, 3) an additional cropping period becomes possible and reduces the land preparation time by half, 4) independent of the dry season crops can be planted taking climate and market demands into consideration, and 5) perennial cash crops can be integrated into the crop rotation.
650 $aAmazonia
650 $aCultivo Migratório
650 $aPequeno Produtor
650 $aSistema de Cultivo
650 $aUso da Terra
653 $aBrasil
653 $aPará
653 $aRegião Bragantina
653 $aTipitamba
700 1 $aDENICH, M.
700 1 $aSÁ, T. D. de A.
700 1 $aKATO, O. R.
700 1 $aKATO, M. do S. A.
700 1 $aBRIENZA JUNIOR, S.
700 1 $aVLEK, P. L. G.
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