A system includes an aerial sensor platform including a spectral imaging device, a position sensor, and an orientation sensor and includes a ground-based sensor platform including at least one soil sensor. The system also includes a computing device with instructions that are executable by a processor to obtain spectral imaging data collected by the spectral imaging device and soil data collected by the at least one soil sensor. The spectral imaging data represents a particular field of view (based on data from the orientation sensor) of a particular geographic region (based on data from the position sensor) of a crop field and the at least one soil sensor is associated with the particular geographic region. The instructions are further executable by the processor to schedule an agricultural activity based on the spectral imaging data and the soil data.