The invention relates to a scraper device for a disc of an agricultural machine comprising:

a first outer scraper element comprising a suitable first scraper portion intended to rest against the outer surface of the first disc and a suitable first coupling portion intended to be coupled to a chassis of the agricultural machine;
a first inner scraper element comprising a suitable second scraper portion intended to rest against the inner surface of the first disc and a suitable second coupling portion intended to be coupled to the first coupling portion of the first outer scraper element;
the first inner scraper element being swivel-mounted with respect to the first outer scraper element around a second rotation axis;
characterized in that it comprises:
a resetting means connected to the second coupling portion to cause a rotational movement of the first inner scraper element along the second rotation axis, so as to press the second scraper portion against the inner surface of the first disc and so as to cause a rotational movement of the first outer scraper element along the first rotation axis to press the first scraper portion against the outer surface of the first disc.

A tool assembly is provided for a planter row unit and resides at the forward end of the row unit beneath the tool bar. The assembly includes a bracket assembly connected to the row unit, with a ground engaging tool removably mounted on the bracket assembly for movement between raised and lowered positions. A linear actuator controls the position of the tool. The tool may also include a depth control mechanism. Different tools can be interchanged on the bracket assembly.

A tool assembly is provided for a planter row unit and resides at the forward end of the row unit beneath the tool bar. The assembly includes a bracket assembly connected to the row unit, with a ground engaging tool removably mounted on the bracket assembly for movement between raised and lowered positions. A linear actuator controls the position of the tool. The tool may also include a depth control mechanism. Different tools can be interchanged on the bracket assembly.

A seeding apparatus comprising a frame having a first section adapted to be attached to a toolbar for towing by a vehicle, and a second section comprising a cutting unit and a seeding unit, the cutting unit comprising at least one cutting disc and the seeding unit comprising at least one seed boot and at least one seed boot mounting, the seed boot mounting comprising a bar configured to locate the seed boot adjacent a side surface of the cutting disc, wherein the bar comprises a proximal end attached to the frame of the seeding apparatus, and a distal end for attachment of the seed boot. The invention also relates to a cutting and seeding assembly for mounting on the seeding apparatus.

An agricultural soil cultivation unit having at least two rows of soil working tools that are fastened to a tool carrying frame that is pivotably supported about a horizontal frame pivot axis at a machine frame supported by a chassis on the ground and liftable by a lifting apparatus into a headland position and/or transport position. It is therefore proposed in accordance with an aspect of the invention to change the working depth setting of the soil working tool rows relative to one another online in working operation to hereby be able to react to changing soil conditions in working operation and to be able to mutually compensate resulting side forces of the soil working tools.

An agricultural soil cultivation unit having at least two rows of soil working tools that are fastened to a tool carrying frame that is pivotably supported about a horizontal frame pivot axis at a machine frame supported by a chassis on the ground and liftable by a lifting apparatus into a headland position and/or transport position. It is therefore proposed in accordance with an aspect of the invention to change the working depth setting of the soil working tool rows relative to one another online in working operation to hereby be able to react to changing soil conditions in working operation and to be able to mutually compensate resulting side forces of the soil working tools.

A ground engaging agricultural blade, coulter, or disc having a central opening adapted to be attached to an implement for rotation about a substantially horizontal axis of rotation; the coulter or disc have an outer periphery; and plurality of step plane notches disposed in the outer periphery. The blade can be used with a hub disposed around the central opening or a spacer spool on a shaft extending through the central openings of adjacent blades, the spacer spools extending radially outwardly by a distance.

A ground engaging agricultural blade, coulter, or disc having a central opening adapted to be attached to an implement for rotation about a substantially horizontal axis of rotation; the coulter or disc have an outer periphery; and plurality of step plane notches disposed in the outer periphery. The blade can be used with a hub disposed around the central opening or a spacer spool on a shaft extending through the central openings of adjacent blades, the spacer spools extending radially outwardly by a distance.