Environmental stresses cause nutritional stresses which in turn lower crop yields, so understanding this complex relationship can improve crop growth and enable new precision farming methods. The aim of this study is to develop a new nanomaterial MXene-based sensing technology for the detection of the soybean plant nutritional stress released by the plant leaves in order to help plants early diagnosis and disease prevention. When terpenes were applied to MXene material using MILD method, the sensor had a significant response towards alpha-pinene and alpha-humulene with a minimal response showed for linalool terpene. Conversely, terpenes applied to MXene prepared using hydrothermal method showed a significant sensitivity response for only alpha-humulene. Using this low-cost sensing device has opened a new way to detect plant nutritional stress and offer precise measurement for plants growth and health.