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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Cerrados; Embrapa Unidades Centrais. |
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Data corrente: |
30/09/1998 |
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Data da última atualização: |
15/10/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SILVA, S. C. da; BRITES, R. S.; ASSAD, E. D. |
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Afiliação: |
SILVANDO CARLOS DA SILVA, CNPAF; RICARDO SEIXAS BRITES; EDUARDO DELGADO ASSAD, CPAC. |
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Título: |
Identificação de risco climático para a cultura de arroz de sequeiro no Estado de Goiás. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, v. 33, n. 7, p. 1005-1011, jul. 1998. |
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Idioma: |
Português |
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Conteúdo: |
Foi utilizado um modelo de balanço hídrico para estimar o risco por deficiência hídrica a que a cultura do arroz (Oryza sativa L.) de sequeiro esta exposta, quando a semeadura e feita nos meses de novembro e dezembro, em Latossolo Vermelho-Amarelo e Latossolo Vermelho-Escuro no Estado de Goiás. As regiões de maior e menor risco climático foram caracterizadas no tempo e no espaço, utilizando-se um sistema de informações geográficas. Os resultados mostram que quanto mais se retardar o plantio, maior será o risco climático, o qual apresenta uma tendência em aumentar de norte para sul e de oeste para leste. Foi também verificado que existe uma variabilidade de chuvas em Goiás. |
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Palavras-Chave: |
Goiás. |
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Thesagro: |
Arroz; Balanço Hídrico; Cerrado; Clima; Evapotranspiração; Oryza Sativa. |
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Thesaurus Nal: |
Climate; Evapotranspiration; rice; water; Water balance. |
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Categoria do assunto: |
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P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/44837/1/IDENTIFICACAO-DE-RISCO-CLIMATICO-PARA-A-CULTURA-DE-ARROZ-DE.pdf
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Marc: |
LEADER 01468naa a2200289 a 4500
001 1205227
005 2021-10-15
008 1998 bl uuuu u00u1 u #d
100 1 $aSILVA, S. C. da
245 $aIdentificação de risco climático para a cultura de arroz de sequeiro no Estado de Goiás.
260 $c1998
520 $aFoi utilizado um modelo de balanço hídrico para estimar o risco por deficiência hídrica a que a cultura do arroz (Oryza sativa L.) de sequeiro esta exposta, quando a semeadura e feita nos meses de novembro e dezembro, em Latossolo Vermelho-Amarelo e Latossolo Vermelho-Escuro no Estado de Goiás. As regiões de maior e menor risco climático foram caracterizadas no tempo e no espaço, utilizando-se um sistema de informações geográficas. Os resultados mostram que quanto mais se retardar o plantio, maior será o risco climático, o qual apresenta uma tendência em aumentar de norte para sul e de oeste para leste. Foi também verificado que existe uma variabilidade de chuvas em Goiás.
650 $aClimate
650 $aEvapotranspiration
650 $arice
650 $awater
650 $aWater balance
650 $aArroz
650 $aBalanço Hídrico
650 $aCerrado
650 $aClima
650 $aEvapotranspiração
650 $aOryza Sativa
653 $aGoiás
700 1 $aBRITES, R. S.
700 1 $aASSAD, E. D.
773 $tPesquisa Agropecuária Brasileira$gv. 33, n. 7, p. 1005-1011, jul. 1998.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Territorial. |
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Data corrente: |
20/03/2017 |
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Data da última atualização: |
23/10/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
C - 0 |
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Autoria: |
HOFF, R.; DUCATI, J. R.; FARIAS, A. R. |
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Afiliação: |
ROSEMARY HOFF, CNPUV; ANDRE RODRIGO FARIAS, SGTE. |
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Título: |
GIS and Remote Sensing to Support Precision Viticulture for Analysis of Vineyards in the Campanha Wine Region, Brazil |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Journal of Environmental & Agricultural Sciences, v. 10, p. 20-32, 2017. |
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Páginas: |
13 p. |
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Idioma: |
Português |
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Conteúdo: |
Agricultural products depend upon the geographical area of production and their quality depends on environment and crop management. Grapevine cultivars can be adapted to the environment, resulting in differences in fruit quality, which will produce different wines. The knowledge of the territory gives value to agricultural products and the use of free software has advantages to associate spatial data with Geographical Information System (GIS) functions for Digital Image Processing (DIP), spatial analysis, Digital Elevation Models (DEM) and databases. The objective of this study was analyze spatially vineyards of Vitis vinifera in south Brazil, using DEM for zoning landscape and employing RapidEye images at different crop stages, in order to follow the Normalized Difference Vegetation Index (NDVI) and test tools that allow the producer a customized management between vineyards and within each vineyard. The software gvSIG was used to evaluate NDVI for plant vigor in order to infer diseases, water status, and other factors. NDVI, altitude, slope, and exposure average were generated for 64 vineyards. To a Cabernet Sauvignon area, a map was generated, showing the variability of the vineyard by resampling of pixel size image, from five to one-meter spatial resolution and zoning according to critical variables for the vineyard. In conclusion, geotechnology is important for viticulture, as a support to environmental diagnostics and are a strategic application for agricultural management. Analytical tools and sensors can provide fast, easily accessible data to all users, being a technology prone to be of widespread access for the end user. MenosAgricultural products depend upon the geographical area of production and their quality depends on environment and crop management. Grapevine cultivars can be adapted to the environment, resulting in differences in fruit quality, which will produce different wines. The knowledge of the territory gives value to agricultural products and the use of free software has advantages to associate spatial data with Geographical Information System (GIS) functions for Digital Image Processing (DIP), spatial analysis, Digital Elevation Models (DEM) and databases. The objective of this study was analyze spatially vineyards of Vitis vinifera in south Brazil, using DEM for zoning landscape and employing RapidEye images at different crop stages, in order to follow the Normalized Difference Vegetation Index (NDVI) and test tools that allow the producer a customized management between vineyards and within each vineyard. The software gvSIG was used to evaluate NDVI for plant vigor in order to infer diseases, water status, and other factors. NDVI, altitude, slope, and exposure average were generated for 64 vineyards. To a Cabernet Sauvignon area, a map was generated, showing the variability of the vineyard by resampling of pixel size image, from five to one-meter spatial resolution and zoning according to critical variables for the vineyard. In conclusion, geotechnology is important for viticulture, as a support to environmental diagnostics and are a strategic application for agricultural manage... Mostrar Tudo |
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Palavras-Chave: |
GIS; Image processing; Spatial analysis; Vineyard. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/164496/1/GIS-RemoteSensing-Precision-Viticulture-2017.pdf
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Marc: |
LEADER 02282naa a2200205 a 4500
001 2067293
005 2017-10-23
008 2017 bl uuuu u00u1 u #d
100 1 $aHOFF, R.
245 $aGIS and Remote Sensing to Support Precision Viticulture for Analysis of Vineyards in the Campanha Wine Region, Brazil$h[electronic resource]
260 $c2017
300 $a13 p.
520 $aAgricultural products depend upon the geographical area of production and their quality depends on environment and crop management. Grapevine cultivars can be adapted to the environment, resulting in differences in fruit quality, which will produce different wines. The knowledge of the territory gives value to agricultural products and the use of free software has advantages to associate spatial data with Geographical Information System (GIS) functions for Digital Image Processing (DIP), spatial analysis, Digital Elevation Models (DEM) and databases. The objective of this study was analyze spatially vineyards of Vitis vinifera in south Brazil, using DEM for zoning landscape and employing RapidEye images at different crop stages, in order to follow the Normalized Difference Vegetation Index (NDVI) and test tools that allow the producer a customized management between vineyards and within each vineyard. The software gvSIG was used to evaluate NDVI for plant vigor in order to infer diseases, water status, and other factors. NDVI, altitude, slope, and exposure average were generated for 64 vineyards. To a Cabernet Sauvignon area, a map was generated, showing the variability of the vineyard by resampling of pixel size image, from five to one-meter spatial resolution and zoning according to critical variables for the vineyard. In conclusion, geotechnology is important for viticulture, as a support to environmental diagnostics and are a strategic application for agricultural management. Analytical tools and sensors can provide fast, easily accessible data to all users, being a technology prone to be of widespread access for the end user.
653 $aGIS
653 $aImage processing
653 $aSpatial analysis
653 $aVineyard
700 1 $aDUCATI, J. R.
700 1 $aFARIAS, A. R.
773 $tJournal of Environmental & Agricultural Sciences$gv. 10, p. 20-32, 2017.
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Registro original: |
Embrapa Territorial (CNPM) |
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