An improved modulated particulate metering system is provided. The system includes a plurality of particulate storage areas, each having a separate type of particulate. The system can include varied configurations of a plurality of cartridges in communication with one of the particulate storage containers. The system can further include varied configurations of a plurality of gearboxes operably connected to the cartridges. The gearboxes can be adapted to be inverted and operably controlled by one or more drive shafts. The system can still further include varied configurations of a plurality of particulate accelerators in fluid communication with an air flow path having one inlet. The system permits a user to efficiently alternate between desired configurations based on the needs of the application.