Around 700 million people worldwide still face food shortages. To address the rising threat of population growth, cultivated land reduction and environmental degradation, there is an urgent need to develop intelligent plant monitoring system to ensure healthy crop growth. In a review article published in the KeAi journal Wearable Electronics, a team of researchers from China summarizes the recent progress in wearable plant sensing devices for intelligent agricultural monitoring system.
“Plants produce a variety of signals that can reflect their health status under stress. To accurately obtain the health signals of plants, wearable sensors need to be used for in-situ monitoring,” explains co-corresponding author Feilong Zhang, professor in flexible sensor for plant health monitoring at Technical Institute of Physics and Chemistry at the Chinese Academy of Sciences. “Wearable sensors can be closely attached to the plant surface to monitor the plant growth rate, leaf surface temperature and humidity, organic volatiles released, and electrophysiological signals in real time.”
The team systematically summaried the current status and recent research progress of wearable sensor devices for plant monitoring. Wearable plant sensors are categorized based on their detected signals: physical signals (growth deformation, light, humidity, temperature), chemical signals (gases, pesticide residues, ion changes), and electrophysiological signals. An overview of the constituent materials, fabrication methods, and sensing mechanisms corresponding to these signals is provided in this review. Additionally, the challenges and development trends of flexible wearable plant sensors are discussed, including issues related to sensor attachment, gas exchange and device interference on complex surfaces.
“While challenges remain, ongoing innovation and cross-disciplinary collaboration are paving the way for wearable sensors to become vital tools in precision agriculture and ecological monitoring — supporting smarter, more sustainable farming systems,” says Zhang.
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References
DOI
10.1016/j.wees.2025.03.002
Original Source URL
https://doi.org/10.1016/j.wees.2025.03.002
Funding Information
This work was financially supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (XDB1030402), the National Natural Science Foundation of China (22035008, 22375016), the Beijing Outstanding Young Scientist Program (JWZQ20240102014) and the Beijing Municipal Science and Technology Commission (2182036).
About Wearable Electronics
Wearable Electronics is a peer-reviewed open access journal covering all aspects of wearable electronics. The journal invites the submission of research papers, reviews, and rapid communications, aiming to present innovative directions for further research and technological advancements in this significant field. It encompasses both applied and fundamental aspects, including wearable electronic materials, wearable electronic devices, and manufacturing technologies of such devices. By incorporating the expertise of scientists, engineers, and industry professionals, the journal strives to address the pivotal challenges that shape the field of wearable science and its core technologies.