The document describes an IoT-based agricultural system developed by Bauer et al. to assess leaf area index (LAI) in-situ. The system uses a wireless sensor network with ground and reference sensors to measure LAI, a parameter important for crop growth. Hardware components like TelosB motes equipped with sensors, and Raspberry Pis as cluster heads are used to collect, transmit and analyze LAI data. The data is sent to an IoT gateway and cloud using protocols like MQTT for visualization and farm management. The system aims to optimize crop productivity and sustainability using IoT technology for agriculture.