Use of synthetically formulated fertilizers is perceived as not being environmentally sound. This is not the case when principles outlined in special rules are followed. Following the rules is the road to sustainability and not away from sustainability. Simple procedures, such as choice of plant species and cultivar, can do much to modify the needs for various inputs. Plant nutrients obey environmental rules or laws; they enter into geochemical and biological cycles. The application of fertilizers sets into action a chain of events, the consequences of which may be far removed from where they were applied on the farm. These reactions and their ecological implications must be properly managed to avoid problems. Most environmental problems related to soil result from so‐called Liebig‐type limiting factors which prevent response to needed inputs. Any inputs are then wasted and may degrade the environment.