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Registro Completo |
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Biblioteca(s): |
Embrapa Algodão. |
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Data corrente: |
08/08/2017 |
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Data da última atualização: |
15/01/2018 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
BRANDAO, Z. N.; GREGO, C. R.; MANJOLIN, R. C. |
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Afiliação: |
ZIANY NEIVA BRANDAO, CNPA; CELIA REGINA GREGO, CNPM; RODOLFO CORREA MANJOLIN, ESTAGIÁRIO - CNPM. |
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Título: |
Geoestatistical tools and spectral measurements from AWiFs data for evaluation of N and P contents in cotton leaves. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 18., 2017, Santos. Anais ... Santos: INPE, 2017. |
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Páginas: |
p. 2408-2415 |
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Idioma: |
Inglês |
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Notas: |
SBSR. |
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Conteúdo: |
Satellite images and geostatistics are useful tools to assess the nutritional status of plants, and thus, understanding the variability of cotton yield in farmers' fields. The resulting kriged maps provide a unique opportunity to overcome both spatial and temporal scaling challenges and understanding the factors that led to crop yield. To support decisions on improving cotton yield, this study combines the conventional statistic analysis, spatial regression modeling of georreferenced data and AWiFs' vegetations indices assessment. The experiments were carried out in a 47.4 ha commercial field of Goiás state, Brazil. Multispectral satellite images at 56 m spatial resolution were collected in a rainfed cotton field in two dates, on 04/01/2011 and 04/10/2012, from AWiFS sensor during the flowering cotton stage. Measures of leaf nitrogen (N) and phosphorus (P) contents were determined over previously georreferenced central points of 70 plots, each one measuring 80X80 m. Data were analyzed using descriptive statistics and geostatistical analyses by building and setting semivariograms and kriging interpolation. Best correlation was found between IVs and nitrogen contents of cotton leaves. Results indicated that NDVI, MSAVI and SAVI were the best indices to estimate P contents at cotton peak flowering. Identifications of spatial differences were possible using geostatistical methods with remote sensing data obtained from medium resolution satellite images, allowing to identify distinct nutritional needs and growth status of canopy to cotton plants. MenosSatellite images and geostatistics are useful tools to assess the nutritional status of plants, and thus, understanding the variability of cotton yield in farmers' fields. The resulting kriged maps provide a unique opportunity to overcome both spatial and temporal scaling challenges and understanding the factors that led to crop yield. To support decisions on improving cotton yield, this study combines the conventional statistic analysis, spatial regression modeling of georreferenced data and AWiFs' vegetations indices assessment. The experiments were carried out in a 47.4 ha commercial field of Goiás state, Brazil. Multispectral satellite images at 56 m spatial resolution were collected in a rainfed cotton field in two dates, on 04/01/2011 and 04/10/2012, from AWiFS sensor during the flowering cotton stage. Measures of leaf nitrogen (N) and phosphorus (P) contents were determined over previously georreferenced central points of 70 plots, each one measuring 80X80 m. Data were analyzed using descriptive statistics and geostatistical analyses by building and setting semivariograms and kriging interpolation. Best correlation was found between IVs and nitrogen contents of cotton leaves. Results indicated that NDVI, MSAVI and SAVI were the best indices to estimate P contents at cotton peak flowering. Identifications of spatial differences were possible using geostatistical methods with remote sensing data obtained from medium resolution satellite images, allowing to identify dist... Mostrar Tudo |
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Palavras-Chave: |
Ìndices de vegetação; Spatial variability. |
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Thesagro: |
Agricultura de Precisão; Algodão; Sensoriamento remoto. |
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Thesaurus Nal: |
Cotton; Precision agriculture; Remote sensing. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02391nam a2200253 a 4500
001 2073757
005 2018-01-15
008 2017 bl uuuu u01u1 u #d
100 1 $aBRANDAO, Z. N.
245 $aGeoestatistical tools and spectral measurements from AWiFs data for evaluation of N and P contents in cotton leaves.$h[electronic resource]
260 $aIn: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 18., 2017, Santos. Anais ... Santos: INPE$c2017
300 $ap. 2408-2415
500 $aSBSR.
520 $aSatellite images and geostatistics are useful tools to assess the nutritional status of plants, and thus, understanding the variability of cotton yield in farmers' fields. The resulting kriged maps provide a unique opportunity to overcome both spatial and temporal scaling challenges and understanding the factors that led to crop yield. To support decisions on improving cotton yield, this study combines the conventional statistic analysis, spatial regression modeling of georreferenced data and AWiFs' vegetations indices assessment. The experiments were carried out in a 47.4 ha commercial field of Goiás state, Brazil. Multispectral satellite images at 56 m spatial resolution were collected in a rainfed cotton field in two dates, on 04/01/2011 and 04/10/2012, from AWiFS sensor during the flowering cotton stage. Measures of leaf nitrogen (N) and phosphorus (P) contents were determined over previously georreferenced central points of 70 plots, each one measuring 80X80 m. Data were analyzed using descriptive statistics and geostatistical analyses by building and setting semivariograms and kriging interpolation. Best correlation was found between IVs and nitrogen contents of cotton leaves. Results indicated that NDVI, MSAVI and SAVI were the best indices to estimate P contents at cotton peak flowering. Identifications of spatial differences were possible using geostatistical methods with remote sensing data obtained from medium resolution satellite images, allowing to identify distinct nutritional needs and growth status of canopy to cotton plants.
650 $aCotton
650 $aPrecision agriculture
650 $aRemote sensing
650 $aAgricultura de Precisão
650 $aAlgodão
650 $aSensoriamento remoto
653 $aÌndices de vegetação
653 $aSpatial variability
700 1 $aGREGO, C. R.
700 1 $aMANJOLIN, R. C.
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Registro original: |
Embrapa Algodão (CNPA) |
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| Registros recuperados : 7 | |
| 1. |  | BRABO, M. F.; VERAS, G. C.; PAIVA, R. S.; FUJIMOTO, R. Y. Aproveitamento Aquícola dos Grandes Reservatórios Brasileiros. BRABO, M. F.; VERAS, G. C.; PAIVA, R. S. FUJIMOTO, R. Y. Aproveitamento Aquícola dos Grandes Reservatórios Brasileiros. Revista Científica de Pesca, Aquicultura e Limnologia, São Paulo, v. 40, n. 1, p. 121-134, 2014. Disponível em: <http://www.pesca.sp.gov.br/sumario40_1.php>. Acesso em: 05 fev. 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 2. | | BRABO, M. F.; CAMPELO, D. A. V.; VERAS, G. C.; PAIVA, R. S.; FUJIMOTO, R. Y. A experiência de parques aquícolas no reservatório da Usina Hidrelétrica de Tucuruí, Amazônia, Brasil. Acta of Fisheries and Aquatic Resources, v. 1, n. 5, p. 52-58, 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 4 |
| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 3. | | BRABO, M. F.; FLEXA, C. E.; VERAS, G. C.; PAIVA, R. S.; FUJIMOTO, R. Y. Viabilidade econômica da piscicultura em tanques-rede no reservatório da usina hidrelétrica de Tucuruí, Estado do Pará. Informações Econômicas, São Paulo, v. 43, n. 3, maio/jun. 2013.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 4. | | BRABO, M. F.; FERREIRA, L. de A.; VERAS, G. C.; CINTRA, I. H. A.; PAIVA, R. S.; FUJIMOTO, R. Y. Proposta de indicadores de sustentabilidade para parques aquícolas continentais: avaliação de um empreendimento na Amazônia. Revista Brasileira de Ciências Agrárias, Recife, v. 10, n. 2, p. 315-321, 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 5. | | CORRÊA, C. B.; VERAS, G. C.; SILVA, G. P. S. da; BRABO, M. F.; SILVA, E. M. Performance, body composition, and physiological response of tambaqui fed diet with green tea extract. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 5, p. 540-546, maio, 2018. Titulo em português: Desempenho, composição corporal e respostas fisiológicas de tambaqui alimentados com dietas com extrato de chá-verde.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 6. | | VERAS, G. C.; SALARO, A. L.; ZUANON, J. A. S.; CARNEIRO, A. P. S.; CAMPELO, D. A. V.; MURGAS, L. D. S. Growth performance and body composition of giant trahira fingerlings fed diets with different protein and energy levels. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 45, n. 9, p. 1021-1027, set. 2010 Título em português: Crescimento e composição corporal de alevinos de trairão alimentados com diferentes níveis de proteína e energia nas dietas.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 7. | | RAMOS, S. E.; CARVALHO A. F. S. de; CASTRO, T. F. D.; VASCONCELOS, A. C. N.; VERAS, G. C.; MOURÃO JÚNIOR, C. A.; MURGAS, L. D. S. Cannibalism, growth performance, and body composition of giant trahira juveniles under different photoperiods. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 6, p. 664-672, June, 2018. Título em português: Canibalismo, desempenho de crescimento e composição corporal de juvenis de trairão em diferentes fotoperíodos.| Biblioteca(s): Embrapa Unidades Centrais. |
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| Registros recuperados : 7 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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