In one embodiment, an agricultural implement system includes a row unit, the row unit configured to dispose seed into a ground trench, and closing system corresponding to the row unit, the closing system configured to close the ground trench after disposition of the seed. The agricultural implement system further includes a double acting cylinder mechanically coupled to the closing system, the double acting cylinder comprising a cylinder side port and a rod side port and a fluid source fluidly coupled to the cylinder side port and configured to provide a cylinder side fluid. The agricultural implement system additionally includes a filter fluidly coupled to the rod side port. Filtered fluid enters the double acting cylinder via the rod side port.

A plough comprising: a frame; a ground engaging tool that is connected to the frame; and an actuator mechanism that is configured to control a roll angle and/or a pitch angle of the frame. The plough also includes a controller that is configured to: receive ground-contour-data that is representative of contours of a field that the plough is to work; and determine an actuator-control-signal for the actuator mechanism based on the ground-contour-data, wherein the actuator-control-signal is for setting the roll angle and/or the pitch angle of the frame.

An agricultural machine includes a set of ground engaging elements that perform a ground engaging operation. The agricultural machine includes a rearward sensor mounted to the agricultural machine to sense an area of ground behind the agricultural machine and generate a rearward sensor signal. The agricultural machine includes rearward zone generator logic that determines a first zone and a second zone, wherein the first zone and the second zone represent portions of the area of ground behind the agricultural machine. The agricultural machine includes rearward residue generator logic configured to receive the rearward sensor signal and determine a first residue metric indicative of the amount of residue in the first zone. The agricultural machine includes control logic that controls one or more aspects of the ground engaging operation on the area of ground based on the first residue metric.

An agricultural machine includes a set of ground engaging elements that perform a ground engaging operation. The agricultural machine includes a rearward sensor mounted to the agricultural machine to sense an area of ground behind the agricultural machine and generate a rearward sensor signal. The agricultural machine includes rearward zone generator logic that determines a first zone and a second zone, wherein the first zone and the second zone represent portions of the area of ground behind the agricultural machine. The agricultural machine includes rearward residue generator logic configured to receive the rearward sensor signal and determine a first residue metric indicative of the amount of residue in the first zone. The agricultural machine includes control logic that controls one or more aspects of the ground engaging operation on the area of ground based on the first residue metric.

A depth-adjustment assembly for ground openers of an agricultural implement. The ground openers each include an opening disc, a gauge wheel, and a support assembly securing the ground opener to the agricultural implement. The support assembly is configured to raise and lower the ground opener with respect to the ground and/or to adjust a down-pressure of the ground opener. The depth-adjustment assembly comprises for each of the ground openers, a linkage assembly and a depth-adjustment arm configured to adjust a relative position between the opening disc and the gauge wheel. At least a portion of the linkage extends in parallel relationship with the support assembly. The depth-adjustment assembly further comprises a laterally-extending common pivot bar. Each linkage assembly is secured to the common pivot bar, such that rotation of said common pivot bar is configured to simultaneously adjust the relative position between the opening disc and the gauge wheel of each of the ground openers.

A depth-adjustment assembly for ground openers of an agricultural implement. The ground openers each include an opening disc, a gauge wheel, and a support assembly securing the ground opener to the agricultural implement. The support assembly is configured to raise and lower the ground opener with respect to the ground and/or to adjust a down-pressure of the ground opener. The depth-adjustment assembly comprises for each of the ground openers, a linkage assembly and a depth-adjustment arm configured to adjust a relative position between the opening disc and the gauge wheel. At least a portion of the linkage extends in parallel relationship with the support assembly. The depth-adjustment assembly further comprises a laterally-extending common pivot bar. Each linkage assembly is secured to the common pivot bar, such that rotation of said common pivot bar is configured to simultaneously adjust the relative position between the opening disc and the gauge wheel of each of the ground openers.

A method of navigating an agricultural implement through a field in an operative direction as it is being towed by a tractor. The method comprises providing the implement with a main mounting assembly, which is mountable to the tractor and has a stationary main beam, and a toolbar movably supported on the main beam in a lateral position so as to be shiftable laterally relative to the operative direction to align the toolbar relative to crop rows, the toolbar including row units configured to pass between crop rows; obtaining an image of the field with a camera; segmenting the image to identify a plurality of the crop rows extending in the operative direction within a field of vision of the camera; and adjusting the lateral position of the toolbar to maintain the row units between the plurality of crop rows while avoiding damage to the crops.

A method of navigating an agricultural implement through a field in an operative direction as it is being towed by a tractor. The method comprises providing the implement with a main mounting assembly, which is mountable to the tractor and has a stationary main beam, and a toolbar movably supported on the main beam in a lateral position so as to be shiftable laterally relative to the operative direction to align the toolbar relative to crop rows, the toolbar including row units configured to pass between crop rows; obtaining an image of the field with a camera; segmenting the image to identify a plurality of the crop rows extending in the operative direction within a field of vision of the camera; and adjusting the lateral position of the toolbar to maintain the row units between the plurality of crop rows while avoiding damage to the crops.

A frame control system for an agricultural implement includes a first sensor configured to be coupled to a sub-frame of the agricultural implement and directed toward a soil surface. The first sensor is configured to emit a first output signal toward the soil surface and to receive a first return signal indicative of a first height of the sub-frame above the soil surface. The frame control system also includes a first sub-frame actuator configured to be coupled to the sub-frame and to a main frame of the agricultural implement. The first sub-frame actuator is configured to control a first position of the sub-frame relative to the main frame along a vertical axis. In addition, the frame control system includes a controller configured to control the first sub-frame actuator such that a difference between the first height and a target height is less than a threshold value.

A frame control system for an agricultural implement includes a first sensor configured to be coupled to a sub-frame of the agricultural implement and directed toward a soil surface. The first sensor is configured to emit a first output signal toward the soil surface and to receive a first return signal indicative of a first height of the sub-frame above the soil surface. The frame control system also includes a first sub-frame actuator configured to be coupled to the sub-frame and to a main frame of the agricultural implement. The first sub-frame actuator is configured to control a first position of the sub-frame relative to the main frame along a vertical axis. In addition, the frame control system includes a controller configured to control the first sub-frame actuator such that a difference between the first height and a target height is less than a threshold value.