US Patent 7055619 Seed boot attachment

This invention is an apparatus for planting seed and injecting dry fertilizer (dry granular material) with an air seeder, chisel plow or cultivator with air seeder components while at the same time tiling the soil. The apparatus consists of a vertically oriented conveyance tube that directs the granular material into a groove formed by the apparatus by means of a knife mounted to the underside of a triangular configured bracket which also serves as the mounting structure. The seed and fertilizer are injected into the groove, below the compacted sweep layer (formed by the sweep shovel) and next to firm soil that does not dry out as would the loose soil above the sweep layer.