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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
18/03/2011 |
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Data da última atualização: |
13/06/2011 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
LAZZAROTTO, J. J.; GARAGORRY, F. L.; HIRAKURI, M. H. |
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Afiliação: |
JOELSIO JOSE LAZZAROTTO, CNPSO; FERNANDO LUIS GARAGORRY CASSALES, SGE; MARCELO HIROSHI HIRAKURI, CNPSO. |
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Título: |
Dinâmica espacial da produção brasileira de soja no período de 1975 a 2003. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
In: CONGRESSO SOCIEDADE BRASILEIRA DE ECONOMIA, ADMINISTRAÇÃO E SOCIOLOGIA RURAL, 48., 2010, Campo Grande, MS. Tecnologias, desenvolvimento e integração social: anais. Campo Grande, MS: SOBER, 2010. |
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Páginas: |
18 p. |
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Idioma: |
Português |
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Conteúdo: |
Especialmente nos últimos quarenta anos as transformações de ordem tecnológica e econômica ocorridas no Brasil ocasionaram expressivas mudanças na exploração da agricultura nacional. Dentre as atividades agrícolas que apresentaram as mudanças mais acentuadas, destaca-se a sojicultura. Assim, partindo de dados relativos aos anos de 1975, 1985, 1995 e 2003, foi realizada uma análise da dinâmica espacial associada com o cultivo da soja no País. Para tanto, com base em dados históricos de exploração da soja, que compreendem as dimensões regional, estadual e microrregional, foram estimados e analisados, principalmente, indicadores de assimetria e de concentração, distâncias de transvariação e de cantor e centros de gravidade. Dentre as conclusões do estudo, são destacadas três: 1) nas últimas décadas, a soja passou a ser cultivada de forma significativa em praticamente todas as regiões brasileiras; 2) no período analisado, houve grandes mudanças em termos de concentração e de localização espacial na produção sojícola; e 3) as estimativas dos centros de gravidade mostraram que, ao longo do tempo, tem ocorrido redução na velocidade de deslocamento do cultivo da oleaginosa no País. Abstract: In the last forty years the transformations of technological and economical order that occurred in Brazil determined expressive changes in the exploitation of the national agriculture. The soybean production is among the activities that presented the most accentuated changes. This work aimed to analyze the spatial dynamics associated with the soybean cultivation in the country. To carry out these analyses, historical data of soybean production of the years 1975, 1985, 1995 and 2003 were used. These data include the regional, state and microregional dimensions. In methodological terms, the analyses developed were associated with asymmetry and concentration indicators, transvariation and cantor distances and centers of gravity. Based on the obtained results, three conclusions were drawn: 1) in the last decades, the soybean cultivation increased significantly in nearly all the Brazilian regions; 2) in the analyzed period, the concentration and spatial location in the soybean production changed greatly; and 3) the estimates of the centers of gravity showed that, along the time, the speed of displacement of soybean cultivation in Brazil has been reduced. MenosEspecialmente nos últimos quarenta anos as transformações de ordem tecnológica e econômica ocorridas no Brasil ocasionaram expressivas mudanças na exploração da agricultura nacional. Dentre as atividades agrícolas que apresentaram as mudanças mais acentuadas, destaca-se a sojicultura. Assim, partindo de dados relativos aos anos de 1975, 1985, 1995 e 2003, foi realizada uma análise da dinâmica espacial associada com o cultivo da soja no País. Para tanto, com base em dados históricos de exploração da soja, que compreendem as dimensões regional, estadual e microrregional, foram estimados e analisados, principalmente, indicadores de assimetria e de concentração, distâncias de transvariação e de cantor e centros de gravidade. Dentre as conclusões do estudo, são destacadas três: 1) nas últimas décadas, a soja passou a ser cultivada de forma significativa em praticamente todas as regiões brasileiras; 2) no período analisado, houve grandes mudanças em termos de concentração e de localização espacial na produção sojícola; e 3) as estimativas dos centros de gravidade mostraram que, ao longo do tempo, tem ocorrido redução na velocidade de deslocamento do cultivo da oleaginosa no País. Abstract: In the last forty years the transformations of technological and economical order that occurred in Brazil determined expressive changes in the exploitation of the national agriculture. The soybean production is among the activities that presented the most accentuated changes. This work aimed to ... Mostrar Tudo |
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Palavras-Chave: |
Agrodinâmica; Concentração na agricultura. |
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Thesagro: |
Economia agrícola; Produção agrícola; Soja. |
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Thesaurus Nal: |
Agricultural economics; Concentration of production; Crop production; Soybeans. |
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Categoria do assunto: |
E Economia e Indústria Agrícola |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/30027/1/186.pdf
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Marc: |
LEADER 03293nam a2200253 a 4500
001 1881583
005 2011-06-13
008 2010 bl uuuu u00u1 u #d
100 1 $aLAZZAROTTO, J. J.
245 $aDinâmica espacial da produção brasileira de soja no período de 1975 a 2003.
260 $aIn: CONGRESSO SOCIEDADE BRASILEIRA DE ECONOMIA, ADMINISTRAÇÃO E SOCIOLOGIA RURAL, 48., 2010, Campo Grande, MS. Tecnologias, desenvolvimento e integração social: anais. Campo Grande, MS: SOBER$c2010
300 $a18 p.
520 $aEspecialmente nos últimos quarenta anos as transformações de ordem tecnológica e econômica ocorridas no Brasil ocasionaram expressivas mudanças na exploração da agricultura nacional. Dentre as atividades agrícolas que apresentaram as mudanças mais acentuadas, destaca-se a sojicultura. Assim, partindo de dados relativos aos anos de 1975, 1985, 1995 e 2003, foi realizada uma análise da dinâmica espacial associada com o cultivo da soja no País. Para tanto, com base em dados históricos de exploração da soja, que compreendem as dimensões regional, estadual e microrregional, foram estimados e analisados, principalmente, indicadores de assimetria e de concentração, distâncias de transvariação e de cantor e centros de gravidade. Dentre as conclusões do estudo, são destacadas três: 1) nas últimas décadas, a soja passou a ser cultivada de forma significativa em praticamente todas as regiões brasileiras; 2) no período analisado, houve grandes mudanças em termos de concentração e de localização espacial na produção sojícola; e 3) as estimativas dos centros de gravidade mostraram que, ao longo do tempo, tem ocorrido redução na velocidade de deslocamento do cultivo da oleaginosa no País. Abstract: In the last forty years the transformations of technological and economical order that occurred in Brazil determined expressive changes in the exploitation of the national agriculture. The soybean production is among the activities that presented the most accentuated changes. This work aimed to analyze the spatial dynamics associated with the soybean cultivation in the country. To carry out these analyses, historical data of soybean production of the years 1975, 1985, 1995 and 2003 were used. These data include the regional, state and microregional dimensions. In methodological terms, the analyses developed were associated with asymmetry and concentration indicators, transvariation and cantor distances and centers of gravity. Based on the obtained results, three conclusions were drawn: 1) in the last decades, the soybean cultivation increased significantly in nearly all the Brazilian regions; 2) in the analyzed period, the concentration and spatial location in the soybean production changed greatly; and 3) the estimates of the centers of gravity showed that, along the time, the speed of displacement of soybean cultivation in Brazil has been reduced.
650 $aAgricultural economics
650 $aConcentration of production
650 $aCrop production
650 $aSoybeans
650 $aEconomia agrícola
650 $aProdução agrícola
650 $aSoja
653 $aAgrodinâmica
653 $aConcentração na agricultura
700 1 $aGARAGORRY, F. L.
700 1 $aHIRAKURI, M. H.
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Registro original: |
Embrapa Soja (CNPSO) |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
04/08/1999 |
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Data da última atualização: |
12/12/2019 |
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Autoria: |
CERDEIRA, A. L.; GOMES, M. A. F.; QUEIROZ, R. C.; BONATO, P. S.; FERRACINI, V. L.; LANCHOTE, V. L. |
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Afiliação: |
ANTONIO LUIZ CERDEIRA, CNPMA; MARCO ANTONIO FERREIRA GOMES, CNPMA; VERA LUCIA FERRACINI, CNPMA. |
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Título: |
Herbicide and nitrate residues in surface and groundwater from sugarcane area in Brazil. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
Bolletino Chimico Farmaceutico, v.138, n.2, p.131, 1999. |
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Idioma: |
Inglês |
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Conteúdo: |
Various studies have demonstrated the presence at high levels of pesticides and nitrate in soil, surface, and groundwater. Prior studies have identified a watershed area in Brazil with a high risk of soil, surface, and groundwater contamination by pesticides at the region of Riberao Preto, SP. Surface and groundwater were collected at the area during the period of October 1995 to November 1998. By means of gas chromatography-mass spectrometry (GC-MS) technique the herbicides tebuthiuron, diuron, simazine, atrazine, and ametryne, and nitrate were analyzed according to the protocols established in literature. The recovery obtained in the extraction procedure was higher than 95% for all herbicides except simazine for which the recovery was 85,6%. Due to the enrichment in the extraction procedure and the sensitive detection at two wavelengths it was possible to obtain a quantification limit of 0.02 ug/L for the herbicides studied. The method was linear over the range of 0.02 to 2.0 ug/L. Soil data showed a higher level of the herbicide tebuthiuron, at the levels of 59.6 ppb; than the other applied during all the months. The results have shown the hercicide tebuthiuron as the one with higher concentrations in groundwater and in January of 1996 the concentration found was 0.08 ug/L, close to the maximum allowed, 0.1 ug/L, but this fact was not consistent during the other months. No residue of the other herbicides was detected. In case of nitrates, with maximum level allowed of 10 mg/L, it was found the maximum of 0.9 mg/l, but in a shallow well inside the area. Commercial wells at the edge of the watershed showed low levels of nitrate, below the risk level, but with potential for dangerous contamination. MenosVarious studies have demonstrated the presence at high levels of pesticides and nitrate in soil, surface, and groundwater. Prior studies have identified a watershed area in Brazil with a high risk of soil, surface, and groundwater contamination by pesticides at the region of Riberao Preto, SP. Surface and groundwater were collected at the area during the period of October 1995 to November 1998. By means of gas chromatography-mass spectrometry (GC-MS) technique the herbicides tebuthiuron, diuron, simazine, atrazine, and ametryne, and nitrate were analyzed according to the protocols established in literature. The recovery obtained in the extraction procedure was higher than 95% for all herbicides except simazine for which the recovery was 85,6%. Due to the enrichment in the extraction procedure and the sensitive detection at two wavelengths it was possible to obtain a quantification limit of 0.02 ug/L for the herbicides studied. The method was linear over the range of 0.02 to 2.0 ug/L. Soil data showed a higher level of the herbicide tebuthiuron, at the levels of 59.6 ppb; than the other applied during all the months. The results have shown the hercicide tebuthiuron as the one with higher concentrations in groundwater and in January of 1996 the concentration found was 0.08 ug/L, close to the maximum allowed, 0.1 ug/L, but this fact was not consistent during the other months. No residue of the other herbicides was detected. In case of nitrates, with maximum level allowed of 10 ... Mostrar Tudo |
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Palavras-Chave: |
Herbicidas; Herbicide; Nitrate; Nitrato de resíduos. |
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Thesaurus NAL: |
sugarcane. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/199623/1/Cerdeira-Herbicide.pdf
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Marc: |
LEADER 02418naa a2200241 a 4500
001 1013142
005 2019-12-12
008 1999 bl uuuu u00u1 u #d
100 1 $aCERDEIRA, A. L.
245 $aHerbicide and nitrate residues in surface and groundwater from sugarcane area in Brazil.$h[electronic resource]
260 $c1999
520 $aVarious studies have demonstrated the presence at high levels of pesticides and nitrate in soil, surface, and groundwater. Prior studies have identified a watershed area in Brazil with a high risk of soil, surface, and groundwater contamination by pesticides at the region of Riberao Preto, SP. Surface and groundwater were collected at the area during the period of October 1995 to November 1998. By means of gas chromatography-mass spectrometry (GC-MS) technique the herbicides tebuthiuron, diuron, simazine, atrazine, and ametryne, and nitrate were analyzed according to the protocols established in literature. The recovery obtained in the extraction procedure was higher than 95% for all herbicides except simazine for which the recovery was 85,6%. Due to the enrichment in the extraction procedure and the sensitive detection at two wavelengths it was possible to obtain a quantification limit of 0.02 ug/L for the herbicides studied. The method was linear over the range of 0.02 to 2.0 ug/L. Soil data showed a higher level of the herbicide tebuthiuron, at the levels of 59.6 ppb; than the other applied during all the months. The results have shown the hercicide tebuthiuron as the one with higher concentrations in groundwater and in January of 1996 the concentration found was 0.08 ug/L, close to the maximum allowed, 0.1 ug/L, but this fact was not consistent during the other months. No residue of the other herbicides was detected. In case of nitrates, with maximum level allowed of 10 mg/L, it was found the maximum of 0.9 mg/l, but in a shallow well inside the area. Commercial wells at the edge of the watershed showed low levels of nitrate, below the risk level, but with potential for dangerous contamination.
650 $asugarcane
653 $aHerbicidas
653 $aHerbicide
653 $aNitrate
653 $aNitrato de resíduos
700 1 $aGOMES, M. A. F.
700 1 $aQUEIROZ, R. C.
700 1 $aBONATO, P. S.
700 1 $aFERRACINI, V. L.
700 1 $aLANCHOTE, V. L.
773 $tBolletino Chimico Farmaceutico$gv.138, n.2, p.131, 1999.
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Embrapa Meio Ambiente (CNPMA) |
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