Fig. 3. Concentrations of total dissolved phosphorus (TDP) and particulate phosphorus (PP) in runoff collected in the first three storm events following treatment application in Period 1. Error bars indicate least significant difference, P < 0.05. C, control; TSP, triplesuperphosphate; LCS, liquid cow manure; LDS, liquid digested sludge; DSC, dewatered sludge cake