2012
DOI: 10.15809/irriga.2012v1n01p27
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Calibração Da Sonda De Capacitância Enviroscan®

Abstract: RESUMOMedir o teor de umidade do solo mediante procedimentos fáceis de aplicar, práticos e precisos, foi considerado um desafio tecnológico importante nos últimos anos, por isso o desenvolvimento de sensores apropriados para o uso agrícola é um tema ativo de pesquisa. Existem diferentes métodos para estimar a umidade do solo em campo (gravimetría, sonda de neutrons, tensiómetros, etc). Apesar de ser um tipo de medição indireta, os métodos dielétricos (incluindo sensores FDR e TDR) proporcionam boa precisão de … Show more

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“…3). These sensors were calibrated in the laboratory (Camargo et al, 2012) using soil representative of the study area according to the methodology provided by the manufacturer, which resulted in the following calibrated function ( R 2 = 0.92) (Eq. [1]): SF=0.1090 θ0.3376+0.1631 where SF is scaled frequency and θ is volumetric soil water content (%).…”
Section: Methodsmentioning
confidence: 99%
“…3). These sensors were calibrated in the laboratory (Camargo et al, 2012) using soil representative of the study area according to the methodology provided by the manufacturer, which resulted in the following calibrated function ( R 2 = 0.92) (Eq. [1]): SF=0.1090 θ0.3376+0.1631 where SF is scaled frequency and θ is volumetric soil water content (%).…”
Section: Methodsmentioning
confidence: 99%