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Fluid Journal : Winter 2015
19 The Fluid Journal Winter 2015 treatments. There were no leaf N or P differences between nutrient management systems at the Lewiston location (data not shown). The unfertilized control received 80 lbs. of N at sidedress to provide a location where N was not limiting. Leaf K levels at Figure 4: Potassium (A), phosphorus (B), nitrate (C) and sulfur (D) concentrations at Lewiston. Lewiston differed during the first week of bloom. However, there was no clear trend in the differences. The unfertilized control did have the lowest leaf K levels (1.09%) and the 2 x 2 band (100%) (1.25%) produced the highest leaf K levels during the first week of bloom at Lewiston. The only other leaf tissue differences observed at Lewiston were for sulfur concentrations during the first and fifth weeks of bloom. The unfertilized control was significantly lower in leaf S concentration than the 2 x 2 band (100%) treatment during both sampling intervals.