Abstract: In an example, an agricultural slurry is applied to a field, for instance to change a constituent profile of the soil. For instance, a slurry application system includes a slurry applicator configured to apply the agricultural slurry. In another example, characteristics of the agricultural slurry are determined with a sensor. The characteristics of the agricultural slurry are compared with corresponding application thresholds. In yet another example, a slurry application controller cooperates with the slurry applicator or a prime mover to apply the agricultural slurry based on the comparison.