Crossword Clue:

animal excrement used as fertilizer

AnswerCrossword Clue
UREACompound used as fertilizer
UREAComponent used as fertilizer
NITERChemical used as fertilizer.
SEAWAREMarine alga used as fertilizer.
MARLCrumbly clay mixture used as fertilizer
VRAICSSeaweeds used as fertilizer in Channel Islands.
PCPAnesthetic used as an animal tranquilizer