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| Registros recuperados : 38 | |
| 6. |  | FRANÇA, P. R. C.; SILVA, O. R. R. F.; JERÔNIMO, J. F.; ALMEIDA, F. A. C. Desempenho operacional de um descaroçador móvel em lotes de algodão com diferentes qualidades. In: BELTRAO, N. E. de M.; SILVA, C. A. D. da; SANTOS, J. W. dos; LIMA. M. M. de A.; SILVA, I. C. da. ENCONTRO DE PRODUÇÃO CIENTÍFICA DA EMBRAPA ALGODÃO - EPC 2012, 7., 2012, Campina Grande. [Resumos...]. Campina Grande: Embrapa Algodão, 2012. 1 p.| Biblioteca(s): Embrapa Algodão. |
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| 7. | | FRANÇA, P. R. C. de; SILVA, O. R. R. F.; SOFIATTI, V.; ALVES, L. dos S. Desenvolvimento e avaliação de um equipamento para semeadura de SESAMUM INDICUM L. CONGRESSO BRASILEIRO DE MAMONA, 5.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 2.; FÓRUM CAPIXABA DE PINHÃO-MANSO, 1., 2012, Guarapari. Desafios e Oportunidades: anais. Campina Grande: Embrapa Algodão, 2012. p. 342| Biblioteca(s): Embrapa Algodão. |
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| 8. | | FRANÇA, P. R. C. de; SILVA, O. R. R. F.; SOFIATTI, V.; ALVES, L. dos S. Protótipo com rotor dosador para semeadura de SESAMUM INDICUM L. CONGRESSO BRASILEIRO DE MAMONA, 5.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 2.; FÓRUM CAPIXABA DE PINHÃO-MANSO, 1., 2012, Guarapari. Desafios e Oportunidades: anais. Campina Grande: Embrapa Algodão, 2012. p. 343| Biblioteca(s): Embrapa Algodão. |
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| 11. | | SILVA, O. R. R. F.; SOFIATTI, V.; CARTAXO, W. V.; JERÔNIMO, J. F.; FRANÇA, P. R. C. de. Descaroçador e prensa enfardadeira itinerantes para o beneficiamento do algodão. In: CONGRESSO BRASILEIRO DO ALGODÃO, 11., 2017, Maceió. Resumos... Inovação e rentabilidade na cotonicultura: resumos... Brasília, DF: Associação Brasileira dos Produtores de Algodão - Abrapa, 2017.| Biblioteca(s): Embrapa Algodão. |
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| 12. | | FRANÇA, P. R. C. DE; SILVA, O. R. R. F.; ALMEIDA, F. DE A. C.; ZONTA, J. H.; SOFIATTI, V. Eficiência de peneira vibratória para limpeza e uniformização de sementes de gossypium hirsutum l. para o deslintamento térmico. In: CONGRESSO BRASILEIRO DE MAMONA, 6.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 3., 2014, Fortaleza. Energia e segurança alimentar na agricultura familiar: anais. Campina Grande, PB: Embrapa Algodão, 2014. p. 181| Biblioteca(s): Embrapa Algodão. |
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| 13. | | FRANÇA, P. R. C. DE; ALMEIDA, F. DE A. C.; SILVA, O. R. R. F.; FERREIRA, D. DA S. Germinação e vigor de sementes de gossypium hirsutum l. deslintadas por processo térmico. In: CONGRESSO BRASILEIRO DE MAMONA, 6.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 3., 2014, Fortaleza. Energia e segurança alimentar na agricultura familiar: anais. Campina Grande, PB: Embrapa Algodão, 2014. p. 236| Biblioteca(s): Embrapa Algodão. |
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| 14. | | FRANÇA, P. R. C. de; SILVA, O. R. R. F.; ALMEIDA, F. de C.; JERÔNIMO, J. F. Desempenho de um protótipo para o beneficiamento de RICINUS COMMUNIS L. cultivar BRS PARAGUAÇÚ. CONGRESSO BRASILEIRO DE MAMONA, 5.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 2.; FÓRUM CAPIXABA DE PINHÃO-MANSO, 1., 2012, Guarapari. Desafios e Oportunidades: anais. Campina Grande: Embrapa Algodão, 2012. p. 340| Biblioteca(s): Embrapa Algodão. |
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| 15. | | JERÔNIMO, J. F.; FRANÇA, P. R. C. de; SILVA, O. R. R. F.; ALMEIDA, F. de A. C.; SOFIATTI, V. Comparação dos descaroçadores de 25 e 50 serras na qualidade tecnológica da fibra de algodão. CONGRESSO BRASILEIRO DE MAMONA, 5.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 2.; FÓRUM CAPIXABA DE PINHÃO-MANSO, 1., 2012, Guarapari. Desafios e Oportunidades: anais. Campina Grande: Embrapa Algodão, 2012. p. 338| Biblioteca(s): Embrapa Algodão. |
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| 19. | | FRANÇA. P. R. C. DE; SILVA, O. R. R. F.; ALMEIDA, F. DE A. C.; SOFIATTI, V.; ZONTA, J. H. Avaliação de uma câmara flambadora de algodão no deslintamento de sementes. In: CONGRESSO BRASILEIRO DE MAMONA, 6.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 3., 2014, Fortaleza. Energia e segurança alimentar na agricultura familiar: anais. Campina Grande, PB: Embrapa Algodão, 2014. p. 178| Biblioteca(s): Embrapa Algodão. |
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| Registros recuperados : 38 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
02/12/2008 |
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Data da última atualização: |
28/03/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Local - B |
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Autoria: |
NAUMOV, A.; PRADO, R. B. |
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Afiliação: |
A. NAUMOV, International Potash Institute; RACHEL BARDY PRADO, CNPS. |
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Título: |
Mapping spatial and temporal potassium balances in Brazilian soils of south-west Goias. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
E-ifc: International Fertilizer Correspondent, Horgen, n. 15, Mar. 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
Introduction: Brazil, is one of the main agricultural producers in the world ranking 1st in the production of sugarcane, coffee and oranges. It is also 2nd as world producer of soybeans and a leader in the harvested yields of many other crops. The annual consumption of mineral fertilizers exceeds 20 million mt, 30% of which corresponds to potash fertilizers (ANDA, 2006). From this statistic it may be supposed that fertilizer application in Brazil is rather high, compared with many other countries. However, even if it is assumed that only one fourth of this enormous 8.5 million km2 territory is used for agriculture, average levels of fertilizer application per hectare of arable land are not high enough for sustainable production. One of the major constraints is the relatively low natural fertility status of the soils which contain excessive Fe and Al oxides. Agriculture is also often practised on sandy soils so that the heavy rainfall causes large losses of nutrients through leaching. In general, nutrient removal by crops such as sugarcane and tropical fruits is much more than the average nutrient application via fertilization, especially in regions with a long history of agricultural production. In the recently developed areas, especially in the Cerrado (Brazilian savanna) where agriculture has expanded since 1980, soils are even poorer than in the "old" agricultural regions, and high costs of mineral fertilizers have become a significant input factor in determining soybean, maize and cotton planting. The consumption of mineral fertilizers throughout Brazil is very uneven. According to the 1995/96 Agricultural Census, only in eight of the total of 26 Brazilian states, were 50 per cent or more of the farms treated "systematically" with mineral fertilizers; in many states it was less than 25 per cent, and in five states even less than 12 per cent (Brazilian Institute for Geography and Statistics; Censo Agropecuario1995/96, Instituto Brazileiro de Geografia e Estadistica; IBGE, www.ibge.gov.br). The geographical application distribution pattern of mineral fertilizers may be considered as an important field of research. Understanding geographical disparities in fertilization level requires a complex approach. This includes evaluation of the availability of nutrients in the soil (and related soil properties e.g. CEC and texture), the input of nutrients with fertilizer application, and the removal of nutrients by harvested yields. When all these data are compiled, it is possible to evaluate the balance of particular nutrients for certain areas, and make conclusions as to where agricultural practices should be optimized. This kind of research is somewhat complicated, because it relies on completely different sources of data, usually from incomparable data sources, e.g. soil characteristics attributed to soil type areas, in contrast to yields by administrative regions, or farms. A priority tool in this case is the Geographical Information System (GIS), which enables attribution of data from different fields to the same territorial units, and makes possible integration of these data in an "inputoutput" model, where "input" is the natural availability of a nutrient in the soil plus fertilization, and "output" export of the same nutrient with the removed harvested yield. MenosIntroduction: Brazil, is one of the main agricultural producers in the world ranking 1st in the production of sugarcane, coffee and oranges. It is also 2nd as world producer of soybeans and a leader in the harvested yields of many other crops. The annual consumption of mineral fertilizers exceeds 20 million mt, 30% of which corresponds to potash fertilizers (ANDA, 2006). From this statistic it may be supposed that fertilizer application in Brazil is rather high, compared with many other countries. However, even if it is assumed that only one fourth of this enormous 8.5 million km2 territory is used for agriculture, average levels of fertilizer application per hectare of arable land are not high enough for sustainable production. One of the major constraints is the relatively low natural fertility status of the soils which contain excessive Fe and Al oxides. Agriculture is also often practised on sandy soils so that the heavy rainfall causes large losses of nutrients through leaching. In general, nutrient removal by crops such as sugarcane and tropical fruits is much more than the average nutrient application via fertilization, especially in regions with a long history of agricultural production. In the recently developed areas, especially in the Cerrado (Brazilian savanna) where agriculture has expanded since 1980, soils are even poorer than in the "old" agricultural regions, and high costs of mineral fertilizers have become a significant input factor in determining soybean,... Mostrar Tudo |
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Palavras-Chave: |
Mapeamento; Solos. |
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Thesagro: |
Potássio. |
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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/148413/1/e-ifc-15-Research-Findings-Mapping-spatial-and-temporal-potassi.pdf
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Marc: |
LEADER 03827naa a2200169 a 4500
001 1339722
005 2022-03-28
008 2008 bl uuuu u00u1 u #d
100 1 $aNAUMOV, A.
245 $aMapping spatial and temporal potassium balances in Brazilian soils of south-west Goias.$h[electronic resource]
260 $c2008
520 $aIntroduction: Brazil, is one of the main agricultural producers in the world ranking 1st in the production of sugarcane, coffee and oranges. It is also 2nd as world producer of soybeans and a leader in the harvested yields of many other crops. The annual consumption of mineral fertilizers exceeds 20 million mt, 30% of which corresponds to potash fertilizers (ANDA, 2006). From this statistic it may be supposed that fertilizer application in Brazil is rather high, compared with many other countries. However, even if it is assumed that only one fourth of this enormous 8.5 million km2 territory is used for agriculture, average levels of fertilizer application per hectare of arable land are not high enough for sustainable production. One of the major constraints is the relatively low natural fertility status of the soils which contain excessive Fe and Al oxides. Agriculture is also often practised on sandy soils so that the heavy rainfall causes large losses of nutrients through leaching. In general, nutrient removal by crops such as sugarcane and tropical fruits is much more than the average nutrient application via fertilization, especially in regions with a long history of agricultural production. In the recently developed areas, especially in the Cerrado (Brazilian savanna) where agriculture has expanded since 1980, soils are even poorer than in the "old" agricultural regions, and high costs of mineral fertilizers have become a significant input factor in determining soybean, maize and cotton planting. The consumption of mineral fertilizers throughout Brazil is very uneven. According to the 1995/96 Agricultural Census, only in eight of the total of 26 Brazilian states, were 50 per cent or more of the farms treated "systematically" with mineral fertilizers; in many states it was less than 25 per cent, and in five states even less than 12 per cent (Brazilian Institute for Geography and Statistics; Censo Agropecuario1995/96, Instituto Brazileiro de Geografia e Estadistica; IBGE, www.ibge.gov.br). The geographical application distribution pattern of mineral fertilizers may be considered as an important field of research. Understanding geographical disparities in fertilization level requires a complex approach. This includes evaluation of the availability of nutrients in the soil (and related soil properties e.g. CEC and texture), the input of nutrients with fertilizer application, and the removal of nutrients by harvested yields. When all these data are compiled, it is possible to evaluate the balance of particular nutrients for certain areas, and make conclusions as to where agricultural practices should be optimized. This kind of research is somewhat complicated, because it relies on completely different sources of data, usually from incomparable data sources, e.g. soil characteristics attributed to soil type areas, in contrast to yields by administrative regions, or farms. A priority tool in this case is the Geographical Information System (GIS), which enables attribution of data from different fields to the same territorial units, and makes possible integration of these data in an "inputoutput" model, where "input" is the natural availability of a nutrient in the soil plus fertilization, and "output" export of the same nutrient with the removed harvested yield.
650 $aPotássio
653 $aMapeamento
653 $aSolos
700 1 $aPRADO, R. B.
773 $tE-ifc: International Fertilizer Correspondent, Horgen$gn. 15, Mar. 2008.
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