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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
23/07/2012 |
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Data da última atualização: |
29/06/2017 |
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Autoria: |
SHIRATSUCHI, L. S. |
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Afiliação: |
LUCIANO SHOZO SHIRATSUCHI, CPAMT. |
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Título: |
Integration of plant-based canopy sensors for site-specific nitrogen management. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
2011 |
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Páginas: |
222 f. |
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Idioma: |
Inglês |
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Notas: |
Tese (Doctor of Philosophy) - Faculty of The Graduate College, University of Nebraska. Orientadores: Richard Ferguson; John Shanahan. |
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Conteúdo: |
The soil's nitrogen (N) supply can vary drastically in the field, spatially as well as temporally making any soil prediction difficult even with very detailed mapping. Consequently, a plant-based approach wherein the measured canopy can indicate the N needs in a reactive and spatially-variable way can be a better approach than mapping, because integrate the soil N supply and translate the crop need on-the-go. The first experiment evaluated the performance of various spectral indices for sensing N status of corn, where spectral variability might be confounded by water-induced variations in crop reflectance. We found that water and previous crops effects on vegetation indices (VI) must be considered, and also that some VIs are less susceptible to water with good ability for N differentiation. In the second experiment, the objective was to develop an approach that relies an local soil conditions as well as on active canopy sensor measurements for real-time adjustment of N application rate. We found that local variations in plant N availability must be considered to determine the optimal N rate on-the-go, and that the localized reference incorporated the spatial variability of the N-rich plot. Next, we determined the correlation between active canopy sensors assessments of N availability and ultrasonic sensor measurements of canopy height at several growth stages for corn. We found strong correlations between both sensors and that they had similar abilities to distinguish N-mediated differences in canopy development. The integrated use of both sensors improved the N estimation compared to the isolated use of either sensor. Based on these strong correlations, we developed an N recommendation algorithm based on ultrasonic plant height measurements to be used for on-the-go variable rate N application. Lastly, we evaluated the crop water status using infrared thermometry integrated with optical and ultrasonic sensors, we concluded that the integration of sensors was beneficial to detect water-stressed zones in the field, affecting yield and possibly promising to delineate zones for N and Water management. MenosThe soil's nitrogen (N) supply can vary drastically in the field, spatially as well as temporally making any soil prediction difficult even with very detailed mapping. Consequently, a plant-based approach wherein the measured canopy can indicate the N needs in a reactive and spatially-variable way can be a better approach than mapping, because integrate the soil N supply and translate the crop need on-the-go. The first experiment evaluated the performance of various spectral indices for sensing N status of corn, where spectral variability might be confounded by water-induced variations in crop reflectance. We found that water and previous crops effects on vegetation indices (VI) must be considered, and also that some VIs are less susceptible to water with good ability for N differentiation. In the second experiment, the objective was to develop an approach that relies an local soil conditions as well as on active canopy sensor measurements for real-time adjustment of N application rate. We found that local variations in plant N availability must be considered to determine the optimal N rate on-the-go, and that the localized reference incorporated the spatial variability of the N-rich plot. Next, we determined the correlation between active canopy sensors assessments of N availability and ultrasonic sensor measurements of canopy height at several growth stages for corn. We found strong correlations between both sensors and that they had similar abilities to distinguish N-medi... Mostrar Tudo |
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Palavras-Chave: |
Fertilization; Sensoreamento. |
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Thesagro: |
Agricultura de Precisão; Nitrogênio. |
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Thesaurus Nal: |
nitrogen; precision agriculture. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/77727/1/shozo-01.pdf
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Marc: |
LEADER 02797nam a2200205 a 4500
001 1928933
005 2017-06-29
008 2011 bl uuuu m 00u1 u #d
100 1 $aSHIRATSUCHI, L. S.
245 $aIntegration of plant-based canopy sensors for site-specific nitrogen management.
260 $a2011$c2011
300 $a222 f.
500 $aTese (Doctor of Philosophy) - Faculty of The Graduate College, University of Nebraska. Orientadores: Richard Ferguson; John Shanahan.
520 $aThe soil's nitrogen (N) supply can vary drastically in the field, spatially as well as temporally making any soil prediction difficult even with very detailed mapping. Consequently, a plant-based approach wherein the measured canopy can indicate the N needs in a reactive and spatially-variable way can be a better approach than mapping, because integrate the soil N supply and translate the crop need on-the-go. The first experiment evaluated the performance of various spectral indices for sensing N status of corn, where spectral variability might be confounded by water-induced variations in crop reflectance. We found that water and previous crops effects on vegetation indices (VI) must be considered, and also that some VIs are less susceptible to water with good ability for N differentiation. In the second experiment, the objective was to develop an approach that relies an local soil conditions as well as on active canopy sensor measurements for real-time adjustment of N application rate. We found that local variations in plant N availability must be considered to determine the optimal N rate on-the-go, and that the localized reference incorporated the spatial variability of the N-rich plot. Next, we determined the correlation between active canopy sensors assessments of N availability and ultrasonic sensor measurements of canopy height at several growth stages for corn. We found strong correlations between both sensors and that they had similar abilities to distinguish N-mediated differences in canopy development. The integrated use of both sensors improved the N estimation compared to the isolated use of either sensor. Based on these strong correlations, we developed an N recommendation algorithm based on ultrasonic plant height measurements to be used for on-the-go variable rate N application. Lastly, we evaluated the crop water status using infrared thermometry integrated with optical and ultrasonic sensors, we concluded that the integration of sensors was beneficial to detect water-stressed zones in the field, affecting yield and possibly promising to delineate zones for N and Water management.
650 $anitrogen
650 $aprecision agriculture
650 $aAgricultura de Precisão
650 $aNitrogênio
653 $aFertilization
653 $aSensoreamento
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Registro original: |
Embrapa Cerrados (CPAC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agricultura Digital; Embrapa Instrumentação; Embrapa Territorial. |
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Data corrente: |
10/01/2023 |
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Data da última atualização: |
26/01/2023 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
GREGO, C. R.; SPERANZA, E. A.; RODRIGUES, C. A. G.; RONQUIM, C. C.; LUCHIARI JUNIOR, A.; SANCHES, G. M.; VAZ, C. M. P.; JORGE, L. A. de C.; PORTO, V. H. B. |
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Afiliação: |
CELIA REGINA GREGO, CNPTIA; EDUARDO ANTONIO SPERANZA, CNPTIA; CRISTINA APARECIDA GONCALVES RODRIG, CNPM; CARLOS CESAR RONQUIM, CNPM; ARIOVALDO LUCHIARI JUNIOR, CNPTIA; GUILHERME MARTINELI SANCHES, UNIVERSIDADE DE SÃO PAULO; CARLOS MANOEL PEDRO VAZ, CNPDIA; LUCIO ANDRE DE CASTRO JORGE, CNPDIA; VARGAS HENRIQUE BELLAFRONTE PORTO, USINA SANTA CRUZ. |
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Título: |
Estudo de caso 6 - zonas de manejo e adubação em área de cultivo de cana-de-açúcar na Fazenda Santa Helena, Ibaté, SP. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
In: PIRES, J. L. F.; BRANDAO, Z. N. (ed.). Experimentação on-farm na agricultura de precisão. Passo Fundo: Embrapa Trigo, 2022. |
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Páginas: |
p. 79-96. |
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Série: |
(Embrapa Trigo. Documentos, 201). |
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ISSN: |
1518-6512 |
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Idioma: |
Português |
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Conteúdo: |
Foi proposto à Usina Santa Cruz o desenvolvimento de ferramentas de AP em um talhão de cana-de-açúcar com 15,7 hectares localizado no município de Ibaté, SP. Acredita-se que os distintos dados de atributos do solo, aliados aos índices vegetativos da cultura, obtidos por sensoriamento proximal e suborbital, possam gerar mapas com distintas Zonas de Manejo (ZMs), capazes de expressar a variabilidade espacial da área de cultivo da cana-de-açúcar. Dentro desta abordagem, esse trabalho teve como objetivo avaliar estratégias de adubação de cana-de-açúcar por meio de pesquisa on-farm (na fazenda) para validar a aplicação da ferramenta AP na área de estudo. O diferencial do experimento on-farm é a realização em condições reais do sistema de produção, com a utilização de maquinário e ferramental disponível na propriedade para obtenção de maior produtividade e redução de custos com uso de adubação adequada. |
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Thesagro: |
Agricultura; Agricultura de Precisão; Cana de Açúcar; Manejo; Sensoriamento Remoto. |
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Categoria do assunto: |
--
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1151128/1/PL-Estudo-caso6-Documentos-2022.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1150841/1/6086.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1150994/1/P-Zonas-de-manejo-e-adubacao-em-area-de-Cultivo-de-Cana-de-Acucar-na-Fazenda-Santa-Helena-Ibate-SP.pdf
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Marc: |
LEADER 01972naa a2200313 a 4500
001 2151128
005 2023-01-26
008 2022 bl uuuu u00u1 u #d
022 $a1518-6512
100 1 $aGREGO, C. R.
245 $aEstudo de caso 6 - zonas de manejo e adubação em área de cultivo de cana-de-açúcar na Fazenda Santa Helena, Ibaté, SP.$h[electronic resource]
260 $c2022
300 $ap. 79-96.
490 $a(Embrapa Trigo. Documentos, 201).
520 $aFoi proposto à Usina Santa Cruz o desenvolvimento de ferramentas de AP em um talhão de cana-de-açúcar com 15,7 hectares localizado no município de Ibaté, SP. Acredita-se que os distintos dados de atributos do solo, aliados aos índices vegetativos da cultura, obtidos por sensoriamento proximal e suborbital, possam gerar mapas com distintas Zonas de Manejo (ZMs), capazes de expressar a variabilidade espacial da área de cultivo da cana-de-açúcar. Dentro desta abordagem, esse trabalho teve como objetivo avaliar estratégias de adubação de cana-de-açúcar por meio de pesquisa on-farm (na fazenda) para validar a aplicação da ferramenta AP na área de estudo. O diferencial do experimento on-farm é a realização em condições reais do sistema de produção, com a utilização de maquinário e ferramental disponível na propriedade para obtenção de maior produtividade e redução de custos com uso de adubação adequada.
650 $aAgricultura
650 $aAgricultura de Precisão
650 $aCana de Açúcar
650 $aManejo
650 $aSensoriamento Remoto
700 1 $aSPERANZA, E. A.
700 1 $aRODRIGUES, C. A. G.
700 1 $aRONQUIM, C. C.
700 1 $aLUCHIARI JUNIOR, A.
700 1 $aSANCHES, G. M.
700 1 $aVAZ, C. M. P.
700 1 $aJORGE, L. A. de C.
700 1 $aPORTO, V. H. B.
773 $tIn: PIRES, J. L. F.; BRANDAO, Z. N. (ed.). Experimentação on-farm na agricultura de precisão. Passo Fundo: Embrapa Trigo, 2022.
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Embrapa Agricultura Digital (CNPTIA) |
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