Herbicide-application equipment was combined with a sled tool-carrier to plant a test crop and apply a herbicide simultaneously to single rows as surface, subsurface, incorporated, and injected sprays. Results obtained, using the methyl ester of 3-amino-2,5-dichloro-benzoic acid (amiben), indicated the equipment can facilitate the evaluation of the influence of method of application on the activity of herbicides applied to soil.