This device is for use in conjunction with the seeder to index the plug tray etc. under the seeder for precise sowing of seeds. The mechanism is powered by compressed air and controlled by a PLC to synchronise it with the seeder. In operation, the growing container is loaded under the front of the seeder. A microswitch starts the cycle, and the mechanism pushes the tray forward a row at a time, seeding each time until the tray, fully seeded, is re-presented to the operator, when the mechanism stops ready for the next tray. Dwell control and Multi-sow are now standard features (see below). A domestic single-phase electrical supply is required for this model.