Fig. 1. Relationship between (a) average soluble reactive phosphorus (SRP) in runoff from three runoff events before litter application and Mehlich-III P; (b) average SRP in runoff from three runoff events after litter application and Mehlich-III P; and (c) average SRP in runoff from three runoff events after litter application and the amount of soluble P applied. Soil test P (Mehlich-III) was measured after Events 1–3, before litter application. (Small plot, simulated runoff events.)