Efeito da instalação e da variabilidade entre sondas no uso da técnica de TDR em um Nitossolo Vermelho Distroférrico

Marcos Antonio Trintinalha; Antônio Carlos Andrade Gonçalves; Marcos Vinícius Folegatti; Cássio Antônio Tormena; Altair Bertonha; Jun Tsukada

doi:10.4025/actasciagron.v23i0.2615

TDR use on tropical soil as affected by probe characteristics and installation conditions

Authors

Marcos Antonio Trintinalha UEM Author
Antônio Carlos Andrade Gonçalves UEM Author
Marcos Vinícius Folegatti USP Author
Cássio Antônio Tormena UEM Author
Altair Bertonha UEM Author
Jun Tsukada UEM Author

DOI:

https://doi.org/10.4025/actasciagron.v23i0.2615

Keywords:

TDR, umidade, irrigação, calibração

Abstract

Although soil moisture is defined by a single physical concept, its determination is not necessarily simple. Since such determination is necessary to soil-water management studies and practices, direct and indirect methods have been developed. Although the Time Domain Reflectometry (TDR) technique has been widely used in recent years, research has shown that prior calibration must be undertaken before the use of this technique. Scanty information exists for tropical soils. Research was undertaken on a Rhodic Kandiudalf, commonly found in the northeast region of the state of Paraná, Brazil. Present study detects the effects of probe characteristics and of soil moisture conditions at the moment of probe installation on the TDR measurements. Installation effects was much more important than probe characteristics. Soil water content during probe installation process affects TDR readings, probably affecting soil-probe contact

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Author Biography

Antônio Carlos Andrade Gonçalves, UEM

Possui graduação em Engenharia Agrícola pela Universidade Federal de Viçosa (1984) , mestrado em Engenharia Agrícola pela Universidade Federal de Viçosa (1987) e doutorado em Agronomia pela Escola Superior de Agricultura Luiz de Queiroz (1997) . Atualmente é Professor Adjunto da Universidade Estadual de Maringá. Tem experiência na área de Engenharia Agrícola , com ênfase em Engenharia de Ãgua e Solo. Atuando principalmente nos seguintes temas: variabilidade espacial, pivô-central, irrigação, geoestatística, retenção de água no solo. Currículo Lattes

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Published

2008-05-09

Issue

Vol. 23 (2001)

Section

Agronomy

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I Declare that current article is original and has not been submitted for publication, in part or in whole, to any other national or international journal.

The copyrights belong exclusively to the authors. Published content is licensed under Creative Commons Attribution 4.0 (CC BY 4.0) guidelines, which allows sharing (copy and distribution of the material in any medium or format) and adaptation (remix, transform, and build upon the material) for any purpose, even commercially, under the terms of attribution.

How to Cite

Trintinalha, M. A., Gonçalves, A. C. A., Folegatti, M. V., Tormena, C. A., Bertonha, A., & Tsukada, J. (2008). TDR use on tropical soil as affected by probe characteristics and installation conditions. Acta Scientiarum. Agronomy, 23, 1165-1171. https://doi.org/10.4025/actasciagron.v23i0.2615