Fig. 5. Relationship between runoff total phosphorus (TP) concentration, runoff sediment (SED) concentration, and Bray P1 (B1) soil extraction values. Symbols: indicates chisel-plowed plots, indicates no-till plots. The TP concentration = -0.08 + 0.003B1 + 0.53SED - 2 x 10^-6 B1²; R² = 0.77, P = 0.001.

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