We believe that if Fukushima Prefecture's agriculture is to be saved, it is essential to create and effectively utilize a system for monitoring the radioactive contamination in each individual parcel of farmland. We are therefore currently developing such a system, as well as a mechanism for putting it to practical use, in the heavily contaminated Tamano district of Soma, adjacent to the village of Iitate. In this chapter, we describe the research outcomes verifi ed to date relating to the characteristics and applications of the monitoring system we are developing.