If the fertilizer contains pesticides, the label will provide the time of safe re-entry. For instance;
Precautions And Restrictions:
Do not apply this product in a way that will contact any person or pet, either directly or through drift. Keep people and pets out
of the area during application. Do not allow people or pets to enter the treated area until dusts have settled.
The nation that destroys its soil destroys itself.
Franklin D. Roosevelt