Application of terahertz sensing at nano-scale for precision agriculture

This chapter employs the state‐of‐the‐art terahertz technique, the focus is primarily to introduce a preliminary analysis and to investigate the water content and presence of any pesticides in leaves in the range of 0.75 to 1.2 THz frequency using the Swissto12 system. It aims at determining the path‐loss response and the complex permittivity of leaves of fresh and drought stressed leaves. In order to obtain higher accuracy and an effective use of water in the agriculture sector, terahertz sensing has potential and is deemed to have a faster, reliable response for the overall monitoring and maintaining the health of the leaves. In modern agriculture, the progress of biosensors plays a vital role in improving both the quantity and quality of yields due to the properties of nanomaterials. The chapter emphasizes the advancement and development of terahertz technology applications in the agriculture sector and presents some of the preliminary studies done in this domain