Poster from 2006 Cascades student poster session.There are two objectives of this experiment. The first is to test the effectiveness of various soil treatments on cheatgrass (Bromus tectorum) canopy cover. The second is to compare the two treatment types side by side to evaluate their relative effectiveness in treating cheatgrass. The treatments we selected are easily applied to large areas and have been shown to be effective in controlling cheatgrass. This will give us an idea as to their relative usefulness and provide a comparison of the various affects associated with each.