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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
08/06/1998 |
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Data da última atualização: |
08/06/1998 |
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Autoria: |
SANCHEZ, P. A. |
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Título: |
Changing tropical soil fertility paradigms: from Brazil to Africa and back. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
In: MONIZ, A.C.; FURLANI, A.M.C.; SCHAFFERT, R.E.; FAGERIA, N.K.; ROSOLEM, C.A.; CANTARELLA, H., ed. Plant-soil interactions at low pH: sustainable agriculture and forestry production. Campinas: Brazilian Soil Science Society, 1997. |
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Páginas: |
p.19-28. |
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Idioma: |
Inglês |
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Notas: |
Trabalho apresentado no "Fourth International Symposium on Plant Soil-Interactions at low pH, Belo Horizonte, MG, Brazil, Mar. 1996". |
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Conteúdo: |
The development of tropical soil fertility paradigms in subhumid Brasil and subhumid Africa and the interaction between the regions is described and discussed. The first paradigm: overcome soil constraints through the application of fertilizers and amendments to meet plant requirements, was successfully applied in domesticating the Brazilian savanna (Cerrado) during 1970s and 1980s. The second paradigm: optimize biological efficiency: rely more on biological processes, to optimize nutrient cycling, minimize external inpusts and maximize the efficiency of their use has evolved gradually, first with the concept of adapting plants for tolerance to aluminum toxicity and for phosphorus efficiency, followed by overall nutrient management, and the deliberate incorporation of soil biological processes. A combination of both paradigms was essentially started in the 1990s, which also incorporates ecological and social considerations. The Brazilian experience in managing acid tropical soils is relevant to much of subhumid Africa. The main difference lies in socio-economic conditions, with Africa dominated by smallholder farmers, largely female. Soil fertitily depletion on smallholder farms of Africa is beginning to be recognized as the fundamental biophysical limiting factor responsible for the declining per-capita food production. Current thinking on natural resource management has resulted in an alternative approach for situations where the first paradigm has not worked: replenish soil fertility as a capital investment in natural resources. This is conceptually similar to what Brazil did in the Cerrado during the 1970s and 1980s. African soils-related research also has several concetps to contribute to Brazil as well, as a third, more integrated paradigm gradually emerges. MenosThe development of tropical soil fertility paradigms in subhumid Brasil and subhumid Africa and the interaction between the regions is described and discussed. The first paradigm: overcome soil constraints through the application of fertilizers and amendments to meet plant requirements, was successfully applied in domesticating the Brazilian savanna (Cerrado) during 1970s and 1980s. The second paradigm: optimize biological efficiency: rely more on biological processes, to optimize nutrient cycling, minimize external inpusts and maximize the efficiency of their use has evolved gradually, first with the concept of adapting plants for tolerance to aluminum toxicity and for phosphorus efficiency, followed by overall nutrient management, and the deliberate incorporation of soil biological processes. A combination of both paradigms was essentially started in the 1990s, which also incorporates ecological and social considerations. The Brazilian experience in managing acid tropical soils is relevant to much of subhumid Africa. The main difference lies in socio-economic conditions, with Africa dominated by smallholder farmers, largely female. Soil fertitily depletion on smallholder farms of Africa is beginning to be recognized as the fundamental biophysical limiting factor responsible for the declining per-capita food production. Current thinking on natural resource management has resulted in an alternative approach for situations where the first paradigm has not worked: replenish so... Mostrar Tudo |
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Palavras-Chave: |
Brasil. |
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Thesagro: |
Cerrado; Fertilidade do Solo; Solo Tropical. |
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Thesaurus Nal: |
Africa; Brazil; soil fertility; tropical soils. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02722naa a2200241 a 4500
001 1554270
005 1998-06-08
008 1997 bl uuuu u00u1 u #d
100 1 $aSANCHEZ, P. A.
245 $aChanging tropical soil fertility paradigms$bfrom Brazil to Africa and back.
260 $c1997
300 $ap.19-28.
500 $aTrabalho apresentado no "Fourth International Symposium on Plant Soil-Interactions at low pH, Belo Horizonte, MG, Brazil, Mar. 1996".
520 $aThe development of tropical soil fertility paradigms in subhumid Brasil and subhumid Africa and the interaction between the regions is described and discussed. The first paradigm: overcome soil constraints through the application of fertilizers and amendments to meet plant requirements, was successfully applied in domesticating the Brazilian savanna (Cerrado) during 1970s and 1980s. The second paradigm: optimize biological efficiency: rely more on biological processes, to optimize nutrient cycling, minimize external inpusts and maximize the efficiency of their use has evolved gradually, first with the concept of adapting plants for tolerance to aluminum toxicity and for phosphorus efficiency, followed by overall nutrient management, and the deliberate incorporation of soil biological processes. A combination of both paradigms was essentially started in the 1990s, which also incorporates ecological and social considerations. The Brazilian experience in managing acid tropical soils is relevant to much of subhumid Africa. The main difference lies in socio-economic conditions, with Africa dominated by smallholder farmers, largely female. Soil fertitily depletion on smallholder farms of Africa is beginning to be recognized as the fundamental biophysical limiting factor responsible for the declining per-capita food production. Current thinking on natural resource management has resulted in an alternative approach for situations where the first paradigm has not worked: replenish soil fertility as a capital investment in natural resources. This is conceptually similar to what Brazil did in the Cerrado during the 1970s and 1980s. African soils-related research also has several concetps to contribute to Brazil as well, as a third, more integrated paradigm gradually emerges.
650 $aAfrica
650 $aBrazil
650 $asoil fertility
650 $atropical soils
650 $aCerrado
650 $aFertilidade do Solo
650 $aSolo Tropical
653 $aBrasil
773 $tIn: MONIZ, A.C.; FURLANI, A.M.C.; SCHAFFERT, R.E.; FAGERIA, N.K.; ROSOLEM, C.A.; CANTARELLA, H., ed. Plant-soil interactions at low pH: sustainable agriculture and forestry production. Campinas: Brazilian Soil Science Society, 1997.
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Registro original: |
Embrapa Cerrados (CPAC) |
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| Registros recuperados : 8 | |
| 7. |  | ARROUAYS, D.; GRUNDY, M. G.; HARTEMINK, A. E.; HEMPEL, J. W.; HEUVELINK, G. B. M.; HONG, S. Y.; LAGACHERIE, P.; LELYK, G.; MCBRATNEY, A. B.; MCKENZIE, N. J.; MENDONCA-SANTOS, M. D. L.; MINASNY, B.; MONTANARELLA, L.; ODEH, I. O. A.; SANCHEZ, P. A.; THOMPSON, J. A.; ZHANG, G.-L. GlobalSoilMap: toward a fine-resolution global grid of soil properties. Advances in Agronomy, v. 125, p. 93-134, 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Solos. |
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| 8. | | SANCHEZ, P. A.; AHAMED, S.; CARRÉ, F.; HARTEMINK, A. E.; HEMPEL, J.; HUISING, J.; LAGACHERIE, P.; MACBRATNEY, A. B.; MCKENZIE, N. J.; MENDONÇA-SANTOS, M. de L.; MINASNY, B.; MONTANARELLA, L.; OKOTH, P.; PALM, C. A.; SACHS, J. D.; SHEPHERD, K. D.; VAGEN, T. G.; VANLAUWE, B.; WALSH, M. G.; WINOWIECKI, L. A.; ZHANG, G. L. Digital soil map of the world. Science, v. 325, n. 5941, p. 680-681, 2009.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Solos. |
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| Registros recuperados : 8 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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