ArticleSensors (Basel, Switzerland)2024
Calibration of Low-Cost Moisture Sensors in a Biochar-Amended Sandy Loam Soil with Different Salinity Levels.
Article in Sensors (Basel, Switzerland), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Field Performance and Calibration Strategies for Low-Cost Capacitive Soil Moisture Sensors.Sensors (Basel, Switzerland) · 2026Article
- picoSMMS: Development and Validation of a Low-Cost and Open-Source Soil Moisture Monitoring Station.Sensors (Basel, Switzerland) · 2025Article
- Investigation into the Performance of TDR and FDR Techniques for Measuring the Water Content of Biochar-Amended Loess.Sensors (Basel, Switzerland) · 2025Article
- Improving the Calibration of Low-Cost Sensors Using Data Assimilation.Sensors (Basel, Switzerland) · 2024Article
- Comparison of Classical and Inverse Calibration Equations in Chemical Analysis.Sensors (Basel, Switzerland) · 2024Article
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
With the increasing focus on irrigation management, it is crucial to consider cost-effective alternatives for soil water monitoring, such as multi-point monitoring with low-cost soil moisture sensors. This study assesses the accuracy and functionality of low-cost sensors in a sandy loam (SL) soil amended with biochar at rates of 15.6 and 31.2 tons/ha by calibrating the sensors in the presence of two nitrogen (N) and potassium (K) commercial fertilizers at three salinity levels (non/slightly/moderately) and six soil water contents. Sensors were calibrated across nine SL-soil combinations with biochar and N and K fertilizers, counting for 21 treatments. The best fit for soil water content calibration was obtained using polynomial equations, demonstrating reliability with R2 values greater than 0.98 for each case. After a second calibration, low-cost soil moisture sensors provide acceptable results concerning previous calibration, especially for non- and slightly saline treatments and at soil moisture levels lower than 0.17 cm
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Registered trials
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