An agricultural planter (10) includes a plurality of row units (40) attached to a toolbar. The row units include seed meters (80, 100, 120, 140) in seed meter housings (81, 101, 121, 142) for receiving, singulating, and dispensing seed or other particulate. The seed meters include a circular seed disc (70, 146) with a seed path for receiving the seed in the seed meter housing. Integrated with the seed meter, such as at the housing, is an electric pressure source (88, 103, 105, 128, 150) dedicated for providing a pressure differential for the seed meter or meters at a particular location on the planter. The pressure source can be positive or negative to temporarily adhere seed to the seed disc of the meter. A single pressure source can provide the pressure differential to a single meter or to multiple meters or discs at a row unit.
