A Portable in-situ Near-infrared LEDs-based Soil Nitrogen Sensor


  • Nur Aisyah Syafinaz Suarin
  • Kim Seng Chia Universiti Tun Hussein Onn Malaysia
  • Siti Fatimah Zaharah Mohamad Fuzi Universiti Tun Hussein Onn Malaysia


Near-infrared, Sensor, LED, Artificial Neural Network, Nitrogen, Soil


Monitoring soil Nitrogen content for palm oil cultivation is paramount to produce high-quality palm oil. This study aims to investigate the feasibility of a designed portable near-infrared (NIR) light emitting diodes (LEDs)-based soil Nitrogen in predicting the soil Nitrogen content using NIR light. First, soil samples that collected from a local oil palm plantation were scanned using the developed sensor and followed by a conventional method, i.e. Kjeldahl analysis. A chemometric analysis was applied in this study to develop a predictive model by choosing the best result from an artificial neural network (ANN). The performance of ANN was validated using leave one out cross-validation. Results indicate that ANN with one hundred number of hidden neurons outperformed with a root mean square error of cross-validation of 0.031. This finding suggests that the proposed sensor coupled with ANN is promising to satisfactorily predict soil Nitrogen content.


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Author Biography

  • Kim Seng Chia, Universiti Tun Hussein Onn Malaysia
    Kim Seng Chia completed his Bachelor Degree in Electrical Engineering (First Class Honours) at Universiti Teknologi Malaysia in 2010. He received his doctorate at Universiti Teknologi Malaysia in 2014. His PhD research focused on developing predictive models that are capable of predicting the soluble solids content of a pineapple non-destructively by means of near infrared spectroscopy. He served Southern University College, Malaysia from Mac 2014 to August 2014 as an assistant professor. He is currently serving Universiti Tun Hussein Onn Malaysia in Faculty of Electronic and Electrical Engineering as an academic staff.







How to Cite

Suarin, N. A. S., Chia, K. S., & Mohamad Fuzi, S. F. Z. (2018). A Portable in-situ Near-infrared LEDs-based Soil Nitrogen Sensor. International Journal of Integrated Engineering, 10(4). https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/2316

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