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Type: Artigo de periódico
Title: Time Domain Reflectometry (tdr) Calibration For Estimating Soil Solution Concentration [calibração Da Reflectometria No Domínio Do Tempo (tdr) Para A Estimativa Da Concentração Da Solução No Solo]
Author: Souza C.F.
Folegatti M.V.
Matsura E.E.
Or D.
Abstract: Time Domain Reflectometry (TDR) is a reliable method for in-situ measurements of the humidity and the solution concentration at the same soil volume. Accurate interpretation of electrical conductivity (and soil humidity) measurements may require a specific calibration curve. The primary goal of this work was to establish a calibration procedure for using TDR to estimate potassium nitrate concentrations (KNO 3) in soil solution. An equation relating the electrical conductivity measured by TDR and KNO 3 concentration was established enabling the use of TDR technique to estimate soil water content and nitrate concentration for efficient fertigation management.
Rights: aberto
Identifier DOI: 
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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