1999
DOI: 10.1590/s0100-204x1999000800014
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Determinação da tensão de água em solo agrícola usando um sensor de dissipação de calor

Abstract: Um estudo foi realizado sob condições de laboratório e de campo objetivando avaliar um sensor de solo utilizado para determinação da temperatura e da tensão da água no solo. Devido à solubilidade do gesso, material poroso utilizado na fabricação dos sensores, houve redução em área da seção transversal e volume, e aumento da porosidade efetiva desses sensores, em relação aos valores observados antes do início dos testes. Os valores médios da temperatura observados com os sensores foram praticamente iguais aos o… Show more

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Cited by 2 publications
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“…It is observed that, in order to use a sensor for irrigation management, its evaluation in the environment in which the humidity values are to be obtained is fundamental. Thus, what is always taken into account when analyzing a sensor is the speed and response time (CRUZ et al, 2010), which according to Oliveira (1999) is a very important factor, since the purpose is to obtain sensors that present fast response time to soil drying, in order to determine the new irrigation.…”
Section: Introductionmentioning
confidence: 99%
“…It is observed that, in order to use a sensor for irrigation management, its evaluation in the environment in which the humidity values are to be obtained is fundamental. Thus, what is always taken into account when analyzing a sensor is the speed and response time (CRUZ et al, 2010), which according to Oliveira (1999) is a very important factor, since the purpose is to obtain sensors that present fast response time to soil drying, in order to determine the new irrigation.…”
Section: Introductionmentioning
confidence: 99%