DRILL FRAME CONSTRUCTION A modular drill frame construction which can assume configurations for standard seeding-drive fertilizer application, and with a modular section added, used for side banding of fertilizer, that is, depositing fertilizer between the normal rows of seed, and by merely changing a tool bar become a row crop planting with side banding option. The modular frame constructions are easily inserted, and the various components are easily removed and replaced for the particular configuration that the farmer wishes to use.