Abstract:

In this paper,a mechanistic corn precision seed metering device with step metering inner-cell,i.e.,combination inner-cell corn precision seed metering device is developed.The experiment results show that when the shapes and sizes of the filling hole and the step metering inner cell are properly taken,the seed metering device will satisfy the needs for precision planting different varieties of maize seeds,without seeds separation by size.

Key words: precision planting, seed-metering device filling in inside, inner cell