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Fig. 4. Mass balance for (A) phosphorus and (B) nitrogen. The percent shown above each bar is the nutrient recovered rate in runoff, leachate, and clippings as a percent of applied after correcting for losses from the unfertilized control. The N rate shown for each source was the single application rate; total yearly N rate was 200 kg N ha–1. *Percentages followed by the same letter are not significantly different at 
= 0.05. CR, controlled-release; RA, readily available.
