Abstract: Granular spreader apparatus for easy attachment to, and detachment from, a truck equipped with a hopper bed, including dual troughs that each house a continuous conveyor belt that overlies a slotted trough which permits granular material of dissimiliar size and weight, such as fertilizer, herbicide, limestone, and other agricultural particulates of dissimiliar size and weight, to be substantially uniformly distributed from the initial point of deposit at the inboard end of the conveyor belt to the outboard extremity of the conveyor belt.