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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
23/01/2020 |
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Data da última atualização: |
28/02/2020 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
ANDRADE, A. G. de; STUCHI, J. F. |
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Afiliação: |
ALUISIO GRANATO DE ANDRADE, CNPS; JULIA FRANCO STUCHI, CNPS. |
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Título: |
Erosion control in agricultural production systems in Brazil. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
In: ARARUNA JUNIOR, J.; ANDRADE, A. G. de; STUCHI, J. F.; SILVA, R. (Ed.). Water in agricultural practices: training the trainers: water perspectives in emerging countries. Göttingen: Cuvillier Verlag, 2019. p. 2-16. |
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Idioma: |
Inglês |
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Conteúdo: |
With the increase in demand for agricultural and forestry products, the pressure on soil and water resources intensifies, leading to extreme food, nutritional and socioeconomic insecurity in the world. This paper aims to present the political and technological strategies to control erosion in agricultural production systems in Brazil presented during the Workshop - Water on Agriculture: Training the Trainers. Erosion has been causing economic damage and degradation in different regions of the country, mainly over sandy soils and areas used since the first agricultural cycles in the 16th century. The largest land use is occupied by pasture with different levels of degradation. Radical changes in soil management and throughout the production system are required to control erosion and to prevent soil and water degradation. The continental expression of Brazil, housing six biomes with different types of vegetation, relief, soils and climate, in addition to the contrasting socio-economic and cultural aspects, requires that the construction of a national policy for sustainable soil and water development should include adaptations considering territoriality and regional specificities. It is necessary as well to develop information on the potentialities and limitations of soil for agricultural production. A strategy to start solving these problems is being initiated trough the National Soil Mapping Program (PRONASOLOS) with detailed information on the country's soils over the next three decades at the most appropriate scales in order to plan agricultural production in a sustainable manner and to prevent water and soil degradation. Zero tillage systems and agroecological production systems can also be considered as examples for erosion control. To further reduce soil and water losses due to erosion in Brazil, it is necessary to expand the use of more sustainable agricultural production systems considering the different limitations and potentialities of the soil and the socioeconomic and cultural conditions of the country. MenosWith the increase in demand for agricultural and forestry products, the pressure on soil and water resources intensifies, leading to extreme food, nutritional and socioeconomic insecurity in the world. This paper aims to present the political and technological strategies to control erosion in agricultural production systems in Brazil presented during the Workshop - Water on Agriculture: Training the Trainers. Erosion has been causing economic damage and degradation in different regions of the country, mainly over sandy soils and areas used since the first agricultural cycles in the 16th century. The largest land use is occupied by pasture with different levels of degradation. Radical changes in soil management and throughout the production system are required to control erosion and to prevent soil and water degradation. The continental expression of Brazil, housing six biomes with different types of vegetation, relief, soils and climate, in addition to the contrasting socio-economic and cultural aspects, requires that the construction of a national policy for sustainable soil and water development should include adaptations considering territoriality and regional specificities. It is necessary as well to develop information on the potentialities and limitations of soil for agricultural production. A strategy to start solving these problems is being initiated trough the National Soil Mapping Program (PRONASOLOS) with detailed information on the country's soils over the next t... Mostrar Tudo |
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Thesagro: |
Agricultura Sustentável; Conservação da Água; Controle da Erosão; Plantio Direto; Políticas Públicas; Produção Agrícola; Recuperação do Solo; Sistema de Produção. |
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Thesaurus Nal: |
Erosion control; No-tillage; Public policy; Soil restoration; Sustainable agriculture; Water conservation. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 03101naa a2200301 a 4500
001 2119235
005 2020-02-28
008 2019 bl uuuu u00u1 u #d
100 1 $aANDRADE, A. G. de
245 $aErosion control in agricultural production systems in Brazil.$h[electronic resource]
260 $c2019
520 $aWith the increase in demand for agricultural and forestry products, the pressure on soil and water resources intensifies, leading to extreme food, nutritional and socioeconomic insecurity in the world. This paper aims to present the political and technological strategies to control erosion in agricultural production systems in Brazil presented during the Workshop - Water on Agriculture: Training the Trainers. Erosion has been causing economic damage and degradation in different regions of the country, mainly over sandy soils and areas used since the first agricultural cycles in the 16th century. The largest land use is occupied by pasture with different levels of degradation. Radical changes in soil management and throughout the production system are required to control erosion and to prevent soil and water degradation. The continental expression of Brazil, housing six biomes with different types of vegetation, relief, soils and climate, in addition to the contrasting socio-economic and cultural aspects, requires that the construction of a national policy for sustainable soil and water development should include adaptations considering territoriality and regional specificities. It is necessary as well to develop information on the potentialities and limitations of soil for agricultural production. A strategy to start solving these problems is being initiated trough the National Soil Mapping Program (PRONASOLOS) with detailed information on the country's soils over the next three decades at the most appropriate scales in order to plan agricultural production in a sustainable manner and to prevent water and soil degradation. Zero tillage systems and agroecological production systems can also be considered as examples for erosion control. To further reduce soil and water losses due to erosion in Brazil, it is necessary to expand the use of more sustainable agricultural production systems considering the different limitations and potentialities of the soil and the socioeconomic and cultural conditions of the country.
650 $aErosion control
650 $aNo-tillage
650 $aPublic policy
650 $aSoil restoration
650 $aSustainable agriculture
650 $aWater conservation
650 $aAgricultura Sustentável
650 $aConservação da Água
650 $aControle da Erosão
650 $aPlantio Direto
650 $aPolíticas Públicas
650 $aProdução Agrícola
650 $aRecuperação do Solo
650 $aSistema de Produção
700 1 $aSTUCHI, J. F.
773 $tIn: ARARUNA JUNIOR, J.; ANDRADE, A. G. de; STUCHI, J. F.; SILVA, R. (Ed.). Water in agricultural practices: training the trainers: water perspectives in emerging countries. Göttingen: Cuvillier Verlag, 2019. p. 2-16.
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Registro original: |
Embrapa Solos (CNPS) |
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Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
26/05/2003 |
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Data da última atualização: |
26/05/2003 |
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Autoria: |
VANZELA, A. L. L.; RUAS, C. F.; OLIVEIRA, M. F.; RUAS, P. M. |
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Título: |
Characterization of diploid, tetraploid and hexaploid Helianthus species by chromosome banding and FISH with 45S rDNA probe. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Genetica, The Hague, v. 114, n. 2, p. 105-111, 2002. |
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Idioma: |
Inglês |
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Conteúdo: |
Comparative karyotype analyses of five diploid, two tetraploid, and three hexaploid species of Helianthus were performed using Feulgen staining, Giemsa C and CMA3 (C-CMA) staining, and FISH with 45S rDNA probe. The karyotypes are composed by a basic number of x=17 with a predominance of meta- and submetacentric chromosome types. A polyploid series is associated with the basic number. Giemsa C- and C-CMA banding revealed terminal or interstitial heterochromatin according to the species, suggesting the existence of a mechanism that may be acting in the dispersion of heterochromatic segments in Helianthus. The nucleolar organizer regions were located at terminal chromosome positions by FISH with 45S rDNA probe. Diploid species presented four, six, and eight rDNA sites, tetraploid species showed eight sites and hexaploid species presented 12 rDNA sites. Karyomorphological differences include variation in number, size and chromosome morphology, suggesting that rearrangements!
involving small heterochromatic and rDNA segments played a major role in karyotype evolution. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01572naa a2200157 a 4500
001 1453404
005 2003-05-26
008 2002 bl --- 0-- u #d
100 1 $aVANZELA, A. L. L.
245 $aCharacterization of diploid, tetraploid and hexaploid Helianthus species by chromosome banding and FISH with 45S rDNA probe.
260 $c2002
520 $aComparative karyotype analyses of five diploid, two tetraploid, and three hexaploid species of Helianthus were performed using Feulgen staining, Giemsa C and CMA3 (C-CMA) staining, and FISH with 45S rDNA probe. The karyotypes are composed by a basic number of x=17 with a predominance of meta- and submetacentric chromosome types. A polyploid series is associated with the basic number. Giemsa C- and C-CMA banding revealed terminal or interstitial heterochromatin according to the species, suggesting the existence of a mechanism that may be acting in the dispersion of heterochromatic segments in Helianthus. The nucleolar organizer regions were located at terminal chromosome positions by FISH with 45S rDNA probe. Diploid species presented four, six, and eight rDNA sites, tetraploid species showed eight sites and hexaploid species presented 12 rDNA sites. Karyomorphological differences include variation in number, size and chromosome morphology, suggesting that rearrangements! involving small heterochromatic and rDNA segments played a major role in karyotype evolution.
700 1 $aRUAS, C. F.
700 1 $aOLIVEIRA, M. F.
700 1 $aRUAS, P. M.
773 $tGenetica, The Hague$gv. 114, n. 2, p. 105-111, 2002.
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