A row unit for an agricultural planter having features for releasably operably coupling a seed meter of the row unit to a seed deposition apparatus of the row unit such as a seed conveyor, seed tube or the like. Apparatus are provided for tipping a seed meter of the hopper for disengagement from the seed deposition apparatus. Apparatus are provided for biasing the seed deposition apparatus into operative engagement with the seed meter. The row unit includes features such as latches for releasably operably coupling the row unit to crop input and vacuum supply lines. Apparatus are provided for tipping a seed meter of the hopper for disengagement from the crop input and vacuum supply lines. Systems are provided for supplying vacuum and crop inputs to the seed meter via the releasably engageable apparatus.