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| Mariano, Daiane Cinque; Faria, Rogério Teixeira; Freitas, Paulo Sergio Lourenço de; Lena, Bruno Patias; Johann, Andre Luiz. |
| Generally, standard lysimeters include a lever-load cell scale, which has become expensive compared to new electronic equipment available for experimental purposes. Currently, lysimeters containing weighing bars with up to 4 load cells are economically feasible. This goal of this study was to present the construction and calibration of four weighing lysimeters built using two rectangular tanks, with a surface area of 1.35 m2 (1 m by 1.35 m) and a depth of 1.5 m, loaded on two weighing bars. Each bar had two high accuracy loading cells connected to a junction box and a datalogger by a coaxial cable. Calibration of each lysimeter was performed after field installation. The results showed a linear response (R2 > 0.9999) of electric signal (mV) to mass... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.03.02.00-0 evapotranspiration; Water balance; Soil water engenharia de água e solo. |
| Ano: 2015 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19368 |
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