TMfrisco said:
It is a a fertilizer, broadleaf postemergent herbicide and preemergent. At the rate it goes out I wouldn't worry about changing your fertilizer schedule - it isn't really that much fertilizer and it is all quick release(I think).
I haven't seen this particular chemical in any other form available to the public.
So that 3-in-1 works for broadleaf. What are you putting down for grassy weeds and when?