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Related Experiment Video

Updated: Oct 13, 2025

In Situ Soil Moisture Sensors in Undisturbed Soils

In Situ Soil Moisture Sensors in Undisturbed Soils

Published on: November 18, 2022

A Wireless Sensor Network Deployment for Soil Moisture Monitoring in Precision Agriculture.

Jaime Lloret¹, Sandra Sendra¹, Laura Garcia¹

¹Instituto de Investigación Para la Gestión Integrada de Zonas Costeras (IGIC), Universitat Politècnica de València, Paraninf 1, 46730 Valencia, Spain.

Sensors (Basel, Switzerland)

|November 13, 2021

Summary

This study introduces a low-cost wireless sensor network for soil moisture monitoring, crucial for optimizing irrigation in precision agriculture. The system uses mutual induction sensors and a custom protocol, offering a reliable and affordable solution for farmers.

Keywords:

Internet of Things (IoT)electromagnetic induction low cost precision agriculture soil moisture water management wireless sensor network

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Last Updated: Oct 13, 2025

In Situ Soil Moisture Sensors in Undisturbed Soils

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Manufacturing Simple and Inexpensive Soil Surface Temperature and Gravimetric Water Content Sensors

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Continuous Instream Monitoring of Nutrients and Sediment in Agricultural Watersheds

Continuous Instream Monitoring of Nutrients and Sediment in Agricultural Watersheds

Published on: September 26, 2017

Area of Science:

Agricultural Engineering
Environmental Science
Sensor Technology

Background:

Precision agriculture is vital for sustainable food production and resource management.
High costs of current technologies limit widespread adoption of precision agriculture.
There is a need for affordable, reliable soil moisture monitoring systems for farmers.

Purpose of the Study:

To develop and evaluate a low-cost wireless sensor network for soil moisture monitoring.
To enable optimization of irrigation processes in precision agriculture.
To address the economic barriers hindering precision agriculture adoption.

Main Methods:

Designed wireless sensor nodes with four soil moisture sensors utilizing mutual induction between coils.
Developed a specific communication protocol to enhance system performance.
Tested prototypes, identifying an optimal design with a 1:2 winding ratio (15 and 30 spires) operating at 93 kHz.
Evaluated network performance, including coverage and signal strength, in a citrus orchard.

Main Results:

The developed wireless sensor network effectively monitors soil moisture at various depths.
The optimized sensor prototype demonstrated reliable performance.
The custom communication protocol improved overall system efficiency.
Field tests in a citrus orchard confirmed network coverage and identified signal loss factors due to vegetation.

Conclusions:

The low-cost wireless sensor network presents a viable solution for precision agriculture irrigation management.
This technology can help farmers optimize water usage, reduce environmental impact, and improve crop yields.
The system's affordability and robustness make precision agriculture more accessible.