Soil moisture monitoring systems and methods for measuring mutual inductance of area of influence using radio frequency stimulus are disclosed herein. An example method includes receiving a first inductance frequency sample from a first oscillator circuit, the first oscillator circuit being coupled with one or more reference inductors; receiving a second inductance frequency sample from a second oscillator circuit, the second oscillator circuit being coupled with one or more mutual inductors that sense soil moisture inductance in an area of soil; receiving a temperature reading from a thermometer, the temperature reading being obtained when the first inductance frequency sample and the second inductance frequency sample were obtained. The example method further includes transmitting the first inductance frequency sample, the second inductance frequency sample, and the temperature reading to a receiver.
