EVALUATION OF ELECTRICAL RESISTANCE SENSORS AND TENSIOMETERS EQUIPPED WITH TENSION TRANSDUCERS FOR SOIL WATER POTENTIAL DETERMINATION
Keywords:
soil water, matric potential, salinity.Abstract
Electronic sensors have been increasingly used for soil water measurement, which is important for plant growth and for rational water use. The aim of the present study was to assess the performance of electrical resistance sensors (SRE) comparatively to tensiometers equipped with tension transducers (TT). TT’s coupled to 0.3-meter-long tensiometers were assembled on porous plates and submitted to increasing tensions ranging from 1 to 14,5 kPa. Both TT’s and SRE were installed in a box containing an air-dried fine earth sample of a red latosol, which was saturated with water and air-dried. The soil was then saturated with a potassium chloride solution. Finally, sensors were installed in the field for a fourmonth period. The results revealed the values showed a difference of 3 kPa and that salinity did not affect significantly the correlation between the data obtained from both sensors. Both SRE and TT’s showed similar performance in the wet range where the experiment was carried out and in the field, being quite useful to monitor soil water content.Downloads
Download data is not yet available.
Downloads
How to Cite
KLEIN, Vilson Antonio; CAMARA, Rodrigo Kurilo; SIMON, Marcos André; BIASUZ JUNIOR, Iradi João. EVALUATION OF ELECTRICAL RESISTANCE SENSORS AND TENSIOMETERS EQUIPPED WITH TENSION TRANSDUCERS FOR SOIL WATER POTENTIAL DETERMINATION. Revista de Ciências Agroveterinárias, Lages, v. 3, n. 2, p. 80–86, 2004. Disponível em: https://revistas.udesc.br/index.php/agroveterinaria/article/view/5420. Acesso em: 2 nov. 2024.
Issue
Section
Research Article - Related Areas
License
Authors publishing in this journal are in agreement with the following terms:
a) Authors maintain the copyrights and concede to the journal the copyright for the first publication, according to Creative Commons Attribution Licence.
b) Authors have the authority to assume additional contracts with the content of the manuscript.
c) Authors may supply and distribute the manuscript published by this journal.