The reverse tiller "Stone Burier" has a rotor that spins backwards while the machine moves forward. This motion throws material against a specially designed filtering grill. Anything that is fine enough to get through is brought up to the surface while debris including stones and organic matter are delivered deeper into the ground. The end result is a perfect bed with fine soil ready to plant. This machine has a variety of attachment accessories available to obtain the most out of your one pass operation. The reduction of passes reduces overall cost including fuel, time, labor, compaction and a reduction of HP needed. Accessories include: packer rollers, bed formers, fertilizer and drip tape applicators, and plastic layers.