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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
05/12/2017 |
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Data da última atualização: |
05/12/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ALMEIDA, K. S. S. A. de; SOUZA, L. da S.; PAZ, V. P. da S.; COELHO FILHO, M. A.; HOCES, E. H. |
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Afiliação: |
KARLA SILVA SANTOS ALVARES DE ALMEIDA, UFRB; LUCIANO DA SILVA SOUZA, UFRB; VITAL PEDRO DA SILVA PAZ, UFRB; MAURICIO ANTONIO COELHO FILHO, CNPMF; EDUARDO HOLZAPFEL HOCES, CRHIAM. |
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Título: |
Models for moisture estimation in different horizons of yellow argisol using TDR. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Semina: Ciências Agrárias, Londrina, v. 38, n. 4, p. 1727-1736, jul./ago. 2017. |
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ISSN: |
1679-0359 |
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Idioma: |
Inglês |
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Conteúdo: |
The determination of soil moisture is very important because it is the property with the most influence on the dielectric constant of the medium. Time-domain reflectometry (TDR) is an indirect technique used to estimate the water content of the soil (?) based on its dielectric constant (Ka). Like any other technique, it has advantages and disadvantages. Among the major disadvantages is the need for calibration, which requires consideration of the soil characteristics. This study aimed to perform the calibration of a TDR100 device to estimate the volumetric water content of four horizons of a Yellow Argisol. Calibration was performed under laboratory conditions using disturbed soil samples contained in PVC columns. The three rods of the handcrafted probes were vertically installed in the soil columns. Weight measurements with digital scales and daily readings of the dielectric constant with the TDR device were taken. For all soil horizons evaluated, the best fits between the dielectric constant and the volumetric water content were related to the cubic polynomial model. The Ledieu model overestimated by approximately 68 % the volumetric water content in the A and AB horizons, and underestimating by 69 % in Bt2, in relation to volumetric water content obtained by gravimetry. The underestimation by linear, Topp, Roth, and Malicki models ranged from 50 % to 85 % for all horizons. |
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Thesagro: |
Irrigação. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02001naa a2200193 a 4500
001 2081557
005 2017-12-05
008 2017 bl uuuu u00u1 u #d
022 $a1679-0359
100 1 $aALMEIDA, K. S. S. A. de
245 $aModels for moisture estimation in different horizons of yellow argisol using TDR.$h[electronic resource]
260 $c2017
520 $aThe determination of soil moisture is very important because it is the property with the most influence on the dielectric constant of the medium. Time-domain reflectometry (TDR) is an indirect technique used to estimate the water content of the soil (?) based on its dielectric constant (Ka). Like any other technique, it has advantages and disadvantages. Among the major disadvantages is the need for calibration, which requires consideration of the soil characteristics. This study aimed to perform the calibration of a TDR100 device to estimate the volumetric water content of four horizons of a Yellow Argisol. Calibration was performed under laboratory conditions using disturbed soil samples contained in PVC columns. The three rods of the handcrafted probes were vertically installed in the soil columns. Weight measurements with digital scales and daily readings of the dielectric constant with the TDR device were taken. For all soil horizons evaluated, the best fits between the dielectric constant and the volumetric water content were related to the cubic polynomial model. The Ledieu model overestimated by approximately 68 % the volumetric water content in the A and AB horizons, and underestimating by 69 % in Bt2, in relation to volumetric water content obtained by gravimetry. The underestimation by linear, Topp, Roth, and Malicki models ranged from 50 % to 85 % for all horizons.
650 $aIrrigação
700 1 $aSOUZA, L. da S.
700 1 $aPAZ, V. P. da S.
700 1 $aCOELHO FILHO, M. A.
700 1 $aHOCES, E. H.
773 $tSemina: Ciências Agrárias, Londrina$gv. 38, n. 4, p. 1727-1736, jul./ago. 2017.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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Biblioteca |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos; Embrapa Amazônia Ocidental. |
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Data corrente: |
31/07/2018 |
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Data da última atualização: |
28/08/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
MAJOLO, C.; PILARSKI, F.; CHAVES, F. C. M.; BIZZO, H. R.; CHAGAS, E. C. |
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Afiliação: |
CLAUDIA MAJOLO, CPAA; Fabiana Pilarski; FRANCISCO CELIO MAIA CHAVES, CPAA; HUMBERTO RIBEIRO BIZZO, CTAA; EDSANDRA CAMPOS CHAGAS, CPAA. |
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Título: |
Antimicrobial activity of some essential oils against Streptococcus agalactiae, an important pathogen for fish farming in Brazil. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Journal of Essential Oil Research, v. 30, n. 5, 2018. |
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DOI: |
https://doi.org/10.1080/10412905.2018.1487343 |
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Idioma: |
Inglês |
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Conteúdo: |
The antimicrobial activity of the essential oils from Lippia alba, Lippia sidoides, Mentha piperita, Ocimum gratissimum and Zingiber officinale was tested against Streptococcus agalactiae. |
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Palavras-Chave: |
Group B; Plantas medicinais. |
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Thesagro: |
Óleo Essencial; Planta Medicinal. |
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Thesaurus NAL: |
Essential oils; Medicinal plants; Streptococcus. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01020naa a2200265 a 4500
001 2093701
005 2018-08-28
008 2018 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1080/10412905.2018.1487343$2DOI
100 1 $aMAJOLO, C.
245 $aAntimicrobial activity of some essential oils against Streptococcus agalactiae, an important pathogen for fish farming in Brazil.$h[electronic resource]
260 $c2018
520 $aThe antimicrobial activity of the essential oils from Lippia alba, Lippia sidoides, Mentha piperita, Ocimum gratissimum and Zingiber officinale was tested against Streptococcus agalactiae.
650 $aEssential oils
650 $aMedicinal plants
650 $aStreptococcus
650 $aÓleo Essencial
650 $aPlanta Medicinal
653 $aGroup B
653 $aPlantas medicinais
700 1 $aPILARSKI, F.
700 1 $aCHAVES, F. C. M.
700 1 $aBIZZO, H. R.
700 1 $aCHAGAS, E. C.
773 $tJournal of Essential Oil Research$gv. 30, n. 5, 2018.
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Embrapa Amazônia Ocidental (CPAA) |
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