Data/hora: 02/06/2024 11:15:04

Provedor de dados: | 91
País: | Brazil
Título: | Calibration of a soil moisture sensor with disturbed and undisturbed soil samples from Bahia
Autores: | Lima,João G. A.; Oliveira,Aureo S. de; Souza,Luciano da S.; Silva,Neilon D. da; Viana,Paula C.
Data: | 2018-10-01
Ano: | 2018
Palavras-chave: | Soil water content; Time domain reflectometry; Soil physics.
Resumo: | ABSTRACT The objective of this study was to evaluate the models proposed by manufacturers and in the literature with respect to soil moisture measurement and to evaluate the performance of the CS616 sensor in the calibration of disturbed and undisturbed soil samples. These calibrations were performed using linear and quadratic models. Disturbed samples were collected in São Gabriel/BA, six samples placed in pots, whereas undisturbed samples were collected in Cruz das Almas/BA, three samples directly collected in the area and placed in a container. A calibration was performed between 21/12/2016 and 08/01/2017. The models proposed in the literature and by manufacturers differed in the estimation of volumetric soil moisture. Disturbed soil samples had higher data dispersion than undisturbed samples, due to factors such as grain size and bulk density, which influence the calibration data. The CS616 sensor had satisfactory performance in the calibration of disturbed and undisturbed samples, with excellent fit of the soil moisture data. Using soil moisture contents obtained by the CS616 sensor, without a previous calibration, may lead to errors in the results, confirming the need for a specific calibration for each type of soil.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018001000696
Editor: | Departamento de Engenharia Agrícola  - UFCG
Relação: | 10.1590/1807-1929/agriambi.v22n10p696-701
Formato: | text/html
Fonte: | Revista Brasileira de Engenharia Agrícola e Ambiental  v.22 n.10 2018
Fonte: | info:eu-repo/semantics/openAccess