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Registros recuperados : 37 | |
11. | | MOLIN, J. P.; FRASSON, F. R.; AMARAL, L. R.; POVH, F. P.; SALVI, J. V. Capacidade de um sensor ótico em quantificar a resposta da cana-de-açúcar a doses de nitrogênio. Revista Brasileira de Engenharia Agrícola e Ambiental, v.14, n.12, p. 1345–1349, dez., 2010. Biblioteca(s): Embrapa Algodão. |
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12. | | POVH, F. P.; MOLIN, J. P.; GIMENEZ, L. M.; PAULETTI, V.; MOLIN, R.; SALVI, J. V. Comportamento do NDVI obtido por sensor ótico ativo em cereais. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 43, n. 8, p. 1075-1083, ago. 2008. Título em inglês: Behavior of NDVI obtained from an active optical sensor in cereals. Biblioteca(s): Embrapa Unidades Centrais. |
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17. | | ROSA, H. J. A.; AMARAL, L. R. do; MOLIN, J. P.; CANTARELLA, H. Sugarcane response to nitrogen rates, measured by a canopy reflectance sensor. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 50, n. 9, p. 840-848, set. 2015. Título em português: Resposta da cana?de?açúcar a doses de nitrogênio estimada por sensor de refletância do dossel. Biblioteca(s): Embrapa Unidades Centrais. |
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18. | | MOLIN, J. P.; VIEIRA JUNIOR, P. A.; DOURADO NETO, D.; FAULIN, G. di C.; MASCARIN, L. Variação espacial na produtividade de milho safrinha devido aos macronutrientes e à população de plantas. Revista Brasileira de Milho e Sorgo, Sete Lagoas, v. 6, n. 3, p. 309-324, 2007. Biblioteca(s): Embrapa Milho e Sorgo. |
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Registros recuperados : 37 | |
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Registro Completo
Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
02/01/2019 |
Data da última atualização: |
25/02/2019 |
Autoria: |
SILVA, F. C. de S.; MOLIN, J. P. |
Afiliação: |
Fernanda Cristina de Souza Silva, Universidade de São Paulo - USP/Escola Superior de Agricultura Luiz de Queiroz - ESALQ/Departamento de Engenharia de Biossistemas; José Paulo Molin, Universidade de São Paulo - USP/Escola Superior de Agricultura Luiz de Queiroz - ESALQ/Departamento de Engenharia de Biossistemas. |
Título: |
On-the-go tropical soil sensing for pH determination using ion-selective electrodes. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 11, p. 1189-1202, Nov. 2018. |
Idioma: |
Inglês |
Notas: |
Título em português: Mensuração direta do pH de solos tropicais por meio de eletrodos íon seletivos. |
Conteúdo: |
The objective of this work was to assess the performance of an antimony ion-selective electrode (ISE) sensor system, using manual and automatic operating modes, for measuring the potential of hydrogen (pH), in real time, in Oxisols with different characteristics. Samples were manually collected and sent to a laboratory for determination of pH in water and calcium chloride, whose values were used as references. Another set of samples was also automatically collected using a commercial equipment, and readings were performed in manual mode. The performance parameters of the sensor system were calculated and evaluated. Part of the soil samples was used to assess the degree of influence of moisture in determining pH. Calibration lines were constructed. The statistical analysis revealed better results for the manual mode. Both modes of operation had errors superior to those accepted as a limit in laboratory techniques, however, with the possibility of high data density and with positive and promising results. Soil moisture interfered with the result of the readings. The sensor system yields a sampling density of 45 data per hectare, which represents a great contribution to the intensification of data for a better spatial evaluation of soil information. |
Palavras-Chave: |
Direct soil sensing; Mapeamento em tempo real; Real-time mapping; Sensor direto de solo. |
Thesagro: |
Agricultura de Precisão. |
Thesaurus NAL: |
Precision agriculture. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/189540/1/On-the-go-tropical-soil-sensing.pdf
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Marc: |
LEADER 02069naa a2200217 a 4500 001 2102726 005 2019-02-25 008 2018 bl uuuu u00u1 u #d 100 1 $aSILVA, F. C. de S. 245 $aOn-the-go tropical soil sensing for pH determination using ion-selective electrodes.$h[electronic resource] 260 $c2018 500 $aTítulo em português: Mensuração direta do pH de solos tropicais por meio de eletrodos íon seletivos. 520 $aThe objective of this work was to assess the performance of an antimony ion-selective electrode (ISE) sensor system, using manual and automatic operating modes, for measuring the potential of hydrogen (pH), in real time, in Oxisols with different characteristics. Samples were manually collected and sent to a laboratory for determination of pH in water and calcium chloride, whose values were used as references. Another set of samples was also automatically collected using a commercial equipment, and readings were performed in manual mode. The performance parameters of the sensor system were calculated and evaluated. Part of the soil samples was used to assess the degree of influence of moisture in determining pH. Calibration lines were constructed. The statistical analysis revealed better results for the manual mode. Both modes of operation had errors superior to those accepted as a limit in laboratory techniques, however, with the possibility of high data density and with positive and promising results. Soil moisture interfered with the result of the readings. The sensor system yields a sampling density of 45 data per hectare, which represents a great contribution to the intensification of data for a better spatial evaluation of soil information. 650 $aPrecision agriculture 650 $aAgricultura de Precisão 653 $aDirect soil sensing 653 $aMapeamento em tempo real 653 $aReal-time mapping 653 $aSensor direto de solo 700 1 $aMOLIN, J. P. 773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 53, n. 11, p. 1189-1202, Nov. 2018.
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