Fig. 1. Liner relationship between the ratio of the K1/K2 solution Kd's for each treatment and soil organic matter. Closed symbols are for treatments where napropamide was applied in acetone and allowed to dry. Open symbols are for treatments where napropamide was applied in water and allowed to dry. Regression lines are computed based on pooling all treatments where napropamide was applied in acetone (solid line) and all treatments where napropamide was applied in water (broken line).