An air seeding system and method includes a manifold mounted across a plurality of row planter units. Electric motors are mounted on the manifold and are operatively connected to the seed meters. A microprocessor or controller adjusts the speed of the motors in response to field data input so as to adjust the rate of seed dispensement to achieve desired plant population. The motor speeds can be adjusted on the fly, without stopping the air seeder. The system senses ground speed, senses the raised and lowered positioned of the row planter units, and senses any blockage of the row planter units. The motors eliminate the need for a ground drive wheel.
