Abstract: The apparatus for tilling soil provides a significant reduction in energy consumption. The apparatus includes one or more sweeps which are effective for subtilling the soil as it is moved therethrough. One or more tillers are provided ahead of the sweeps, sufficiently near the path of travel of the outermost ends or tips of the sweep blades so as to disturb or loosen the soil directly in the path of the ends of the blades. By positioning the tillers relative to the sweep tips in this manner, energy consumption may be significantly reduced in comparison to subtilling devices having coulters or other tillers positioned ahead of the center of the sweeps.

Abstract: Disclosed is an apparatus for controlling the depth of soil penetration of a ground contact implement, such as a planter, furrow opener, seeder, tiller, fertilizer or pesticide applicator, plow, etc. or any combination thereof. The present invention permits presetting of a desired ground contact implement soil penetration depth, and provides continuous dynamic regulating of an adjustable downpressure system in response to changing forces exerted on the device (for example, including those forces resulting from soil unevenness), so as to maintain the ground contact implement at approximately the preset desired depth.

Abstract: A new apparatus for opening furrows in soil is disclosed. Specifically, this apparatus consists of an opening mechanism, a closing mechanism, an automatic seed planting mechanism, an automatic seedling planting mechanism, a driving means, a towing means, and the salient component parts necessary to make them function.

Abstract: A new apparatus for opening furrows in soil is disclosed. Specifically, this apparatus consists of an opening mechanism, a closing mechanism, an automatic seed planting mechanism, an automatic seedling planting mechanism, a driving means, a towing means, and the salient component parts necessary to make them function.