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![](/consulta/web/img/deny.png) | Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
Registro Completo |
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
14/06/2022 |
Data da última atualização: |
14/06/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
OLIVEIRA, J. F. de; BROSSARD, M.; CORAZZA, E. J.; GUIMARÃES, M. F.; MARCHAO, R. L. |
Afiliação: |
JOSE FRANCIRLEI DE OLIVEIRA; MICHEL BROSSARD; EDEMAR JOAQUIM CORAZZA, SPD; MARIA DE FATIMA GUIMARAES; ROBELIO LEANDRO MARCHAO, CPAC. |
Título: |
Field-scale spatial correlation between soil and Vis-NIR spectra in the Cerrado biome of Central Brazi. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Geoderma Regional, v. 30, e00532, 2022. |
Páginas: |
13 p. |
Idioma: |
Inglês |
Conteúdo: |
Visible and near-infrared (Vis-NIR) spectroscopy is a tool to determine soil spatial variability and has been used to map soils and their properties. Considering that physical, chemical, mineralogical, and morphological soil properties can affect the intensity and the depth of the spectral reflectance band in the Vis-NIR region, the objectives of this work were to: (i) evaluate the potential of the reflectance inflection difference (RID) to discriminate soils; and (ii) verify potential spatial correlations of the RID with soil properties, compared with the full spectra, in order to build thematic maps at a field scale. In a farm of 375 ha, 78 soil samples from the 0.87?0.92-m depth were collected in a regular grid of 200 m, with a focus on the soil diagnostic horizon (Bw horizon). The sampled soils were a Latossolo Vermelho-Amarelo ´ acrico (Haplic Ferralsol) and a Latossolo Vermelho distrofico ´ (Rhodic Ferralsol). Twenty-two physical, chemical, mineralogical, and morphological soil properties were determined, and the Vis-NIR spectra between 400 and 2500 nm were measured. Considering the presence of an inflection band and its relationship with soil properties, the spectral bands used to calculate the RID were between (base 1/base 2): 400?510, 730?930, 1290?1450, 1800?1950, 2000?2218, and 2218?2290 nm. The RID failed to map the spatial variability of soil properties, with a Kappa index of 39%; therefore, it is not a good parameter for building thematic maps of soil parameters. In addition, the complete spectrum (mainly in 400?510, 730?930, 1290?1450, 1800?1950, 2000?2218, and 2218?2290 nm) was better spatially correlated with soil properties than the decomposition of the spectrum by the RID. Soil classification and level of discretization as affected by spectral variability were also discussed here. Three soil groups were discriminated mainly by the Ki and Kr indexes and clay content. Moreover, the variability of the spectra was conditioned by the spatial variability of the mentioned variables. The clay content for soils with a discrepant particle size (group 1 compared with groups 2 and 3) and the Ki and Kr indexes for soils with a homogeneous particle size (between groups 2 and 3), associated with the full Vis-NIR spectral analysis, allowed building thematic maps with a good precision, without the need of mathematical models; this was possible by the modification of the reflectance intensity and the size of the concavity of the spectral band. MenosVisible and near-infrared (Vis-NIR) spectroscopy is a tool to determine soil spatial variability and has been used to map soils and their properties. Considering that physical, chemical, mineralogical, and morphological soil properties can affect the intensity and the depth of the spectral reflectance band in the Vis-NIR region, the objectives of this work were to: (i) evaluate the potential of the reflectance inflection difference (RID) to discriminate soils; and (ii) verify potential spatial correlations of the RID with soil properties, compared with the full spectra, in order to build thematic maps at a field scale. In a farm of 375 ha, 78 soil samples from the 0.87?0.92-m depth were collected in a regular grid of 200 m, with a focus on the soil diagnostic horizon (Bw horizon). The sampled soils were a Latossolo Vermelho-Amarelo ´ acrico (Haplic Ferralsol) and a Latossolo Vermelho distrofico ´ (Rhodic Ferralsol). Twenty-two physical, chemical, mineralogical, and morphological soil properties were determined, and the Vis-NIR spectra between 400 and 2500 nm were measured. Considering the presence of an inflection band and its relationship with soil properties, the spectral bands used to calculate the RID were between (base 1/base 2): 400?510, 730?930, 1290?1450, 1800?1950, 2000?2218, and 2218?2290 nm. The RID failed to map the spatial variability of soil properties, with a Kappa index of 39%; therefore, it is not a good parameter for building thematic maps of soil parameter... Mostrar Tudo |
Palavras-Chave: |
Diferença de inflexão de refletância; Índices Ki e Kr; Variabilidade espacial do solo. |
Thesagro: |
Argila; Espectrometria; Raio Infravermelho; Solo. |
Categoria do assunto: |
-- |
Marc: |
LEADER 03277naa a2200265 a 4500 001 2144045 005 2022-06-14 008 2022 bl uuuu u00u1 u #d 100 1 $aOLIVEIRA, J. F. de 245 $aField-scale spatial correlation between soil and Vis-NIR spectra in the Cerrado biome of Central Brazi.$h[electronic resource] 260 $c2022 300 $a13 p. 520 $aVisible and near-infrared (Vis-NIR) spectroscopy is a tool to determine soil spatial variability and has been used to map soils and their properties. Considering that physical, chemical, mineralogical, and morphological soil properties can affect the intensity and the depth of the spectral reflectance band in the Vis-NIR region, the objectives of this work were to: (i) evaluate the potential of the reflectance inflection difference (RID) to discriminate soils; and (ii) verify potential spatial correlations of the RID with soil properties, compared with the full spectra, in order to build thematic maps at a field scale. In a farm of 375 ha, 78 soil samples from the 0.87?0.92-m depth were collected in a regular grid of 200 m, with a focus on the soil diagnostic horizon (Bw horizon). The sampled soils were a Latossolo Vermelho-Amarelo ´ acrico (Haplic Ferralsol) and a Latossolo Vermelho distrofico ´ (Rhodic Ferralsol). Twenty-two physical, chemical, mineralogical, and morphological soil properties were determined, and the Vis-NIR spectra between 400 and 2500 nm were measured. Considering the presence of an inflection band and its relationship with soil properties, the spectral bands used to calculate the RID were between (base 1/base 2): 400?510, 730?930, 1290?1450, 1800?1950, 2000?2218, and 2218?2290 nm. The RID failed to map the spatial variability of soil properties, with a Kappa index of 39%; therefore, it is not a good parameter for building thematic maps of soil parameters. In addition, the complete spectrum (mainly in 400?510, 730?930, 1290?1450, 1800?1950, 2000?2218, and 2218?2290 nm) was better spatially correlated with soil properties than the decomposition of the spectrum by the RID. Soil classification and level of discretization as affected by spectral variability were also discussed here. Three soil groups were discriminated mainly by the Ki and Kr indexes and clay content. Moreover, the variability of the spectra was conditioned by the spatial variability of the mentioned variables. The clay content for soils with a discrepant particle size (group 1 compared with groups 2 and 3) and the Ki and Kr indexes for soils with a homogeneous particle size (between groups 2 and 3), associated with the full Vis-NIR spectral analysis, allowed building thematic maps with a good precision, without the need of mathematical models; this was possible by the modification of the reflectance intensity and the size of the concavity of the spectral band. 650 $aArgila 650 $aEspectrometria 650 $aRaio Infravermelho 650 $aSolo 653 $aDiferença de inflexão de refletância 653 $aÍndices Ki e Kr 653 $aVariabilidade espacial do solo 700 1 $aBROSSARD, M. 700 1 $aCORAZZA, E. J. 700 1 $aGUIMARÃES, M. F. 700 1 $aMARCHAO, R. L. 773 $tGeoderma Regional$gv. 30, e00532, 2022.
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![](/consulta/web/img/deny.png) | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
17/10/2013 |
Data da última atualização: |
07/03/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
PEREIRA, A. A. G.; OLIVEIRA, C. J. B.; MEDEIROS, A. N.; COSTA, R. G.; BOMFIM, M. A. D.; QUEIROGA, R. C. R. E. |
Afiliação: |
Department of Animal Science, Federal University of Paraiba (UFPB) - Areia-PB, Brazil; UFPB - Areia, PB, Brazil; UFPB - Areia, PB, Brazil; Department of Agriculture, Federal University of Paraiba (UFPB) - Bananeiras, PB, Brazil; MARCO AURELIO DELMONDES BOMFIM, CNPC; Department of Nutrition, Federal University of Paraiba (UFPB) - João Pessoa-PB, Brazil. |
Título: |
Physicochemical and sensory characteristics of milk from goats supplemented with castor or licuri oil. |
Ano de publicação: |
2010 |
Fonte/Imprenta: |
Journal of Dairy Science, v. 93, n. 2, p. 456-62, Feb. 2010. |
DOI: |
10.3168/jds.2009-2315 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: The purpose of this study was to evaluate the influence of castor and licuri palm oils supplemented to milking goats on the physical, chemical, and sensory characteristics of milk. A double Latin square experimental design (5x5) using 10 confined crossbred Moxotó-Alpine goats was performed according to the following treatments: nonsupplemented (control), 3% castor oil, 5% castor oil, 3% licuri oil, and 5% licuri oil. Oils in each treatment were supplemented in the dry matter. Castor oil supplementation reduced the fat content and increased the lactose and density of milk. Considering the sensory analysis, a lower acceptability was observed for milk from goats supplemented with castor oil. On the other hand, licuri oil supplementation led to higher acceptability scores for flavor and odor of goat milk. |
Palavras-Chave: |
Aceitabilidade; Licuri; Milk chemistry; Sensory testing; Teste sensorial. |
Thesagro: |
Ácido graxo; Análise organoléptica; Caprino; Composição química; Consumidor; Dieta; Leite de cabra; Mamona; Ouricuri; Palmeira oleaginosa; Planta oleaginosa; Ricinus communis; Suplemento alimentar; Syagrus coronata. |
Thesaurus NAL: |
Castor oil; Chemical composition; Fatty acids; Goat milk; Vegetable oil. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 02175naa a2200481 a 4500 001 1968757 005 2022-03-07 008 2010 bl uuuu u00u1 u #d 024 7 $a10.3168/jds.2009-2315$2DOI 100 1 $aPEREIRA, A. A. G. 245 $aPhysicochemical and sensory characteristics of milk from goats supplemented with castor or licuri oil.$h[electronic resource] 260 $c2010 520 $aAbstract: The purpose of this study was to evaluate the influence of castor and licuri palm oils supplemented to milking goats on the physical, chemical, and sensory characteristics of milk. A double Latin square experimental design (5x5) using 10 confined crossbred Moxotó-Alpine goats was performed according to the following treatments: nonsupplemented (control), 3% castor oil, 5% castor oil, 3% licuri oil, and 5% licuri oil. Oils in each treatment were supplemented in the dry matter. Castor oil supplementation reduced the fat content and increased the lactose and density of milk. Considering the sensory analysis, a lower acceptability was observed for milk from goats supplemented with castor oil. On the other hand, licuri oil supplementation led to higher acceptability scores for flavor and odor of goat milk. 650 $aCastor oil 650 $aChemical composition 650 $aFatty acids 650 $aGoat milk 650 $aVegetable oil 650 $aÁcido graxo 650 $aAnálise organoléptica 650 $aCaprino 650 $aComposição química 650 $aConsumidor 650 $aDieta 650 $aLeite de cabra 650 $aMamona 650 $aOuricuri 650 $aPalmeira oleaginosa 650 $aPlanta oleaginosa 650 $aRicinus communis 650 $aSuplemento alimentar 650 $aSyagrus coronata 653 $aAceitabilidade 653 $aLicuri 653 $aMilk chemistry 653 $aSensory testing 653 $aTeste sensorial 700 1 $aOLIVEIRA, C. J. B. 700 1 $aMEDEIROS, A. N. 700 1 $aCOSTA, R. G. 700 1 $aBOMFIM, M. A. D. 700 1 $aQUEIROGA, R. C. R. E. 773 $tJournal of Dairy Science$gv. 93, n. 2, p. 456-62, Feb. 2010.
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