Fig. 1. Relationship between water-soluble P (WS-P) and total P in the 28 organic P sources. Dashed lines indicate WS-P values that are 10 or 30% of total P concentrations. DBS, dairy/beef solid; DBL, dairy/beef liquid; DBC, dairy/beef compost; SF, swine—fresh; SL, swine—liquid; PDP, poultry—deep pit; BLA, broiler litter with alum.