Planter apparatus

A planter module for sowing a row of seed disks which disks comprise a readily crushable material compacted around a seed, said planter module comprising an elongated generally rectangular chassis, and adjustable support wheel connected to said chassis at the leading end thereof to support the leading end a predetermined height above the ground, a pivotally connected rear packing member attached to the trailing end of said chassis, a parallel linkage attached to the leading end of said chassis and including attaching means for attachment to a tractor mounting bar to position said chassis at an incline from the trailing end downward toward the lead end, spring means for resiliently applying a downward force on said linkage and on said packing member from said mounting bar, a pair of parallel spaced knurled rollers disposed lengthwise of said chassis and positioned to be inclined with said chassis, said knurled rollers being disposed side by side and defining therebetween an elongated vertical open slot, the transverse dimension of said space between said rollers being smaller however than the height or axial dimension of the seed disks, means driving said rollers for rotation about their longitudinal axis in the same direction, a hopper positioned on said chassis above the trailing end thereof and having a trough-shaped open bottom for dispensing seed disks edgewise onto said rollers, singulating means affording movement of the seed disks in a file along said rollers from said hopper, furrow opening means trailing said support wheel for forming a furrow, a seed chute positioned at the leading end of said chassis beneath the leading end of said rollers to transfer seeds from the leading end of said rollers to deposit the same in said furrow, one of said rollers having a helical rib means on said leading end for positively engaging and displacing individual seed disks from the slot between the rollers and into said seed chute.