An irrigation system is disclosed that includes a control system for determining whether to apply a soil conditioning agent to an agricultural field is disclosed. In an implementation, the control system includes memory operable to store one or more modules and a processor coupled to the memory. The processor is operable to execute the one or more modules to cause the processor to receive one or more signals representing a soil moisture characteristic from a soil sensor. The processor is also operable to determine whether to apply a soil conditioning agent to a soil based upon the soil moisture characteristic and to initiate operation of the irrigation assembly to apply the soil conditioning agent to the soil in response when the soil requires the soil conditioning agent.
