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Construction, calibration and evaluation of mini-lysimeters in the management of irrigation in a protected environment

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dc.contributor.authorMatos, M.L.
dc.contributor.authorLyra, G.B.
dc.contributor.authorCecchin, D.
dc.contributor.authorHüther, C.M.
dc.contributor.authorFrancisco, J.P.
dc.contributor.authorJorge, M.F.
dc.contributor.authorPereira, C.R.
dc.contributor.authorHamacher, L.S.
dc.contributor.authorda Silva, L.D.B.
dc.date.accessioned2025-06-26T06:23:15Z
dc.date.available2025-06-26T06:23:15Z
dc.date.issued2025
dc.descriptionReceived: January 8th, 2025 ; Accepted: May 15th, 2025 ; Published: June 12th, 2025 ; Correspondence: daianececchin@id.uff.breng
dc.description.abstractThe production of forest seedlings requires controlled environments and specific practices, highlighting the need for rational irrigation management. Historically, excessive irrigation has compromised seedling quality, underscoring the importance of developing technologies and research focused on water use efficiency in nurseries. Thus, technologies that are more financially accessible to producers contribute not only to cultivation but also to the social inclusion of these producers in broader markets. Mini-lysimeters can be effectively used to monitor the water balance in potted and tray-grown plant production, thereby reducing water waste in forest nurseries. In this study, portable electronic weighing mini-lysimeters were constructed for greenhouse evapotranspiration research using load cells (capacity: 20 kg), as sensor elements, and dataloggers for data acquisition. Calibration curves were established by correlationg standard weights and voltage readings, and were analyzed using regression analysis. The coefficient of determination (𝑟𝑟2) and the standard error of estimation (SEE) were used to evaluate model accuracy. Under field conditions, the lysimeters’ performance was assessed using the correlation coefficient (r); Willmott's index (d); performance index (c) and SEE, with pine and eucalyptus seedlings. The calibration curves were well described by linear models, with 𝑟𝑟2 values exceeding 0.994. The highest SEE (2.44 g), observedin mini-lysimeter III, remained below the 4 g detection threshold of the load cell. All performance indicators (r, d, and c) were above 0.999, with SEE values ranging from 6.2 to 36.2 g (less than 1 g per tube), demonstrating that the mini-lysimeters are suitable for monitoring daily evapotranspiration.eng
dc.identifier.citationMatos, M. L., Lyra, G. B., Cecchin, D., Hüther, C. M., Francisco, J. P., Jorge, M. F., Pereira, C. R., Hamacher, L. S., & da Silva, L. D. B. (2025). Construction, calibration and evaluation of mini-lysimeters in the management of irrigation in a protected environment. https://doi.org/10.15159/AR.25.049en
dc.identifier.issn2228-4907
dc.identifier.publicationAgronomy Research, 2025, vol. 23, Special Issue x, pp. x–xeng
dc.identifier.urihttp://hdl.handle.net/10492/10075
dc.identifier.urihttps://doi.org/10.15159/ar.25.049
dc.publisherEstonian University of Life Scienceseng
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)eng
dc.rightsinfo:eu-repo/semantics/openAccesseng
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectlysimetryeng
dc.subjectforest seedlingseng
dc.subjectload cellseng
dc.subjectevapotranspirationeng
dc.subjectirrigation managementeng
dc.subjectarticleseng
dc.titleConstruction, calibration and evaluation of mini-lysimeters in the management of irrigation in a protected environmenteng
dc.typeArticleeng

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