I remember a daycare center specifically prohibiting "organic" fertilizers because of the possible pathogens and parasites present. Fertilizer watered in is not harmful to children or pets once the irrigation is dry. Chemical N, P and K is no more harmful than table salt. People do swim in the ocean, right?
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
Benjamin Franklin 1775
Sell not virtue to purchase wealth, nor Liberty to purchase power.
Benjamin Franklin Poor Richard's Almanac1738