- Where is the best source for DAP? I have been checking around
without success. I checked my local drug store and the Pharmacist
acted like he didn't know what Di-amonium Phosphate(spelling?)was. I
checked the farm supply store but wasn't sure if I was looking for
the right thing. What are DAP's primary uses? Does it go by a brand
name? Does it come in "food grade" quality?
Appreciate all advice.