Sewage's cash crop.
Tweed
Katherine
K
D000383:Agriculture; D000818:Animals; D003247:Conservation of Natural Resources; D005308:Fertilizers; D006801:Humans; D010758:Phosphorus / Q000302:isolation & purification*; D012722:Sewage / Q000032:analysis*; D014865:Waste Disposal, Fluid
D005308:Fertilizers; D012722:Sewage; D010758:Phosphorus