Again attached to the rear of the 2-wheel tractor, and are powered by the PTO. The stone burrier looks like a rotovator with a row of vertically mounted tines behind the rotor and then a cage roller, and effectively that is what it is, however the rotor turns in the opposite way to the rotovator. As the implement moves forward the soil is lifted and thrown against the vertical tines, the soil passes through and the stones drop down below the tines. Therefore as you progressively move forward the soil that passes through the vertical tines drops down on top of the stones burying them. The stone burrier is used mainly in landscaping work and in some horticultural applications. On some models a seeder can be fitted in front of the roller.