{HEAD ~ Oxidized sulfur derivatives} of {TAIL ~ diaminophosphinyl compounds} as urease inhibitors and urease inhibited urea based fertilizer compositions 
of
{ HEAD ~ Oxidized sulfur derivatives } of { TAIL ~ diaminophosphinyl compounds } as urease inhibitors and urease inhibited urea based fertilizer compositions
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH