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Fig. 1. Effects of seven spring-applied fertilizer and herbicide treatments on seed yield, oil concentration, and oil yield of meadowfoam grown as a rotation crop for perennial ryegrass seed on a poorly drained soil in western Oregon in 1998 and 2001. The H+F+ control treatment is the combined application of herbicide and fertilizer at typical spring timing after weed seedlings have begun to emerge. The mean seed yield, seed oil content, and oil yield for each control in both years is shown in each graph. Bars within each graph shown with the same letter are not different at P 
0.05 according to Duncan's new multiple range test.
