2 Rawson-equipped planters from the '90s. Not sure who originated that concept & who copied. I don't think JD ever cam out w/a version...so maybe no one copied. Ours is the Kinze, neighbor/friend has the IH 900 mounted behind a Rawson cart. We put 50 gal of 28% split on both sides of the row. Used "injector nozzles" that trailed in the dirt beneath the surface following the Rawson wavy coulters. There were 3 coulters per row, 1 in the center, the other 2 about 4" to either side of center with the N following those. Worked fine.