Multiple agricultural product application method and systems utilizing a drum metering system

A method and system for planting one of a plurality of seed types, hybrids and/or varieties is provided. A planter is provided with a plurality of row units. The row units include metering systems, which can include a drum meter capable of metering multiple types of seed at the single drum. The metering system including the drum is configured such that the seed meter will plant different seed types or varieties. The operation the drum meter will provide for the planting of a particular seed variety. The invention provides for on-the-go changing of a seed being planted by the operation of the drum seed meter at each of the row units and provides for almost infinite variation among the row units for planting particular seed varieties or not planting at all.