The drag chain on a lime buggy/truck is a lot wider than a fertilizer buggy, so lime tends to "bridge" more rapidly in the more narrow channel of the fertilizer buggy, which usually leads to shoveling. Also, even if you get it to feed you will have to make a lot more trips across the field, due to the narrow feed chain. I use a combination lime/fertilizer buggy (Chandler) & just move the drive chain from one sprocket to another when switching products. Spreading lime requires a faster feed chain speed to spread the much larger quantities applied.