1. A system for moisture control comprising: a computer; a set of sprinkler controllers connected to the computer, each sprinkler controller controlling at least one sprinkler; a probe controller connected to the computer; a set of probes connected to the probe controller, each probe associated with a probe location, and comprising at least one reference probe; the probe controller programmed to measure a set of probe data by measuring voltages between the reference probe and each of a plurality of other probes and corresponding currents between pairs of the plurality of other probes; the computer programmed to: receive a three-dimensional set of moisture requirements including a set of surface zones associated with a set of depths below a surface related to types of foliage stored in a look-up table, each type of foliage associated with a watering depth; receive the set of probe data; calculate a set of resistivity data from the set of probe data, the probe locations, and a probe geometric constant; sort the set of resistivity data to create a set of sorted resistivity data; generate a set of first resistivity models from the set of sorted resistivity data; generate a set of second resistivity models from the set of first resistivity models; combine the set of second resistivity models to generate the three-dimensional resistivity model; compare the three-dimensional resistivity model to the three-dimensional set of moisture requirements; generate a set of sprinkler commands based on the comparison; and, send the set of sprinkler commands to the set of sprinkler controllers activating the corresponding at least one sprinkler.