A crop input transfer system for transferring a crop input to an implement tank supported on an implement dispensing the crop input, the crop input transfer system includes a mobile supply vehicle powered independent of the implement. The mobile supply vehicle has a boom and a supply tank holding a crop input supply. The crop transfer system includes a coupler with a first coupler portion that matingly couples with a second coupler portion. The first coupler portion is mounted to the boom and the second coupler portion is mounted to the implement. The crop input supply in the supply tank is communicated to implement tank via the matingly coupled first and second coupler portions.
