A row unit system for a corn header of an agricultural harvester, the row unit system including a plurality of row units and a plurality of chopper assemblies. A first row unit and an adjacent second row unit are each coupled to the corn header, with each row unit having a first and second leg. The first and second legs are substantially a mirror image of each other. The chopper assemblies are positioned proximate to the legs of the row units and include a chopper assembly nested between the second leg of the first row unit and the first leg of the second row unit.

Embodiments of an apparatus and methods can removing unwanted plants or weeds from an area such as an agricultural plot or lawn. The apparatus includes a three-dimensional imager configured to capture plant images and locate plants; an image processor configured to distinguish between wanted and unwanted plants based upon the captured plant images; at least one laser device configured to emit a laser beam having power sufficient to damage the unwanted plants; a guidance system configured to direct at least one laser beam toward the unwanted plant; and a chassis configured to support the three-dimensional imager, the laser device, and the guidance system. The chassis is configured to be moved across the area.

The present application relates to selective harvesting of agricultural objects, such as asparagus spears. One described example relates to a harvester that includes at least one set of independently controllable cutter arm assemblies that rotate about a common axis to harvest individual asparagus spears.

The present application relates to selective harvesting of agricultural objects, such as asparagus spears. One described example relates to a harvester that includes at least one set of independently controllable cutter arm assemblies that rotate about a common axis to harvest individual asparagus spears.

A row unit system for a corn header of an agricultural harvester, the row unit system including a plurality of row units and a plurality of chopper assemblies. A first row unit and an adjacent second row unit are each coupled to the corn header, with each row unit having a first and second leg. The first and second legs are substantially a mirror image of each other. The chopper assemblies are positioned proximate to the legs of the row units and include a chopper assembly nested between the second leg of the first row unit and the first leg of the second row unit.

A brush clearing assembly includes a mounting unit that may be coupled to a tractor. A hooking unit is provided. The hooking unit may be coupled to the tractor thereby facilitating the tractor to draw the hooking unit. The hooking unit is movably coupled to the mounting unit. The hooking unit may engage a trunk of a bush when the tractor backs toward the bush. The hooking unit slides laterally in the mounting unit when the hooking unit engages the trunk of the bush. Thus, the hooking unit slides along the trunk of the bush until the hooking unit passes beyond the trunk of the bush. The hooking unit removes the bush when the tractor drives forwardly from the bush.

Embodiments of an apparatus and methods can removing unwanted plants or weeds from an area such as an agricultural plot or lawn. The apparatus includes a three-dimensional imager configured to capture plant images and locate plants; an image processor configured to distinguish between wanted and unwanted plants based upon the captured plant images; at least one laser device configured to emit a laser beam having power sufficient to damage the unwanted plants; a guidance system configured to direct at least one laser beam toward the unwanted plant; and a chassis configured to support the three-dimensional imager, the laser device, and the guidance system. The chassis is configured to be moved across the area.

A cutting tool for clearing plant growth. The clearing tool includes a power transmission apparatus. An elongated part is coupled to the transmission to rotate around a longitudinal axis of the elongated part and having at least one thread that rises toward the transmission and the diameter of which decreases from an end of the elongated part coupled to the transmission to the end of the elongated part that is at a distance from the transmission. Guide parts are arranged around the elongated part to extend in the direction of the longitudinal axis of the elongated part. A blade part is arranged at the end of the elongated part coupled to the transmission. The elongated part, which, while targeted in a longitudinal direction toward the plant growth, is arranged to cut the plant growth when being rotated, wherein the threads transport the plant growth toward the blade part guided by the guide parts and cut the plant growth with the blade part.

A harvesting header for a row crop machine has a plurality of row units having fore-and-aft extending arms forming a passageway, a gathering mechanism to gather stalks into the passageway, snap rolls to pull the stalks downwardly through the passageway, and a knife set to cut the stalks in the passageway. The knife set includes a pair of opposing blades, each blade having a main portion with an inner edge located on a first side of a centerline of the passageway and a cutting protrusion with a sharpened cutting edge extending across the centerline toward the opposing blade. The cutting protrusions are offset longitudinally from one another such that the cutting protrusion of one of the blades is a different distance from a mouth of the passageway than the cutting protrusion of the opposing blade such that there is a continuous gap between the blades along the length of blades.

Embodiments of an apparatus and methods can removing unwanted plants or weeds from an area such as an agricultural plot or lawn. The apparatus includes a three-dimensional imager configured to capture plant images and locate plants; an image processor configured to distinguish between wanted and unwanted plants based upon the captured plant images; at least one laser device configured to emit a laser beam having power sufficient to damage the unwanted plants; a guidance system configured to direct at least one laser beam toward the unwanted plant; and a chassis configured to support the three-dimensional imager, the laser device, and the guidance system. The chassis is configured to be moved across the area.