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Fig. 2. The effect of manure application rate on average annual (A) runoff, (B) total solids (TS) loss, (C) total phosphorus (TP) loss, and (D) dissolved molybdate-reactive phosphorus (DP) loss from 1999–2001. Bars are split to indicate the contribution of spring and summer seasons to the annual totals. Bars with the same letters are not significantly different (P < 0.10) when comparing across manure application rates for spring, summer, and annual segments of each bar. Manure was applied annually in the fall based on the P recommendation from an initial soil test (1X) for a corn–soybean rotation.
