An agricultural harvester includes: a harvester frame; an agricultural header coupled with the harvester frame, the agricultural header including: a header frame; at least one row unit including a first stalk roll and a second stalk roll, the first stalk roll configured for rotating at a first angular velocity, the second stalk roll configured for rotating at a second angular velocity which is different from and variable relative to the first angular velocity.

A narrow row head unit includes a back plate secured to a left gearbox and a right gearbox, which gearboxes may be positioned adjacent one another. Each gearbox may provide rotational power to a pair of stalk rolls and a drive sprocket for a gathering chain. A right mounting tab may be secured to the back plate and the right gearbox, and a left mounting tab may be secured to the back plate and left gearbox. A right plate and leg may extend outward from the back plate adjacent the right mounting tab and a left plate and leg may extend outward from the back plate adjacent the left mounting tab. A narrow row head unit positioned left-of-center on a header may have the gathering chain positioned substantially over the right plate, and right-of-center substantially over the left plate.

Differential speed stalk rolls mountable to a row unit of a row crop head. A first stalk roll body has an outer peripheral speed less than the outer peripheral speed of a second stalk roll body in lateral spaced relation. The stalk roll bodies may have modular and interchangeable body segments of different configurations.

The invention relates to an attachment for attaching to a harvesting machine, comprising a number of picking devices (2) distributed adjacent to one another over the working width, said picking devices having at least a first and a second picking rotor (10a, 10b), which can be driven in counterrotation. The drawing edges (14) on the drawing bodies (12) on the first and second picking rotors (10a, 10b) are arranged in relation to one another in such a way that, during rotary movement of the first and second picking rotors (10a, 10b), two adjacent drawing edges (14) of the first picking rotor (10a) hold, in the range of action of said drawing edges into the downward movement path of a plant stalk (8), the plant stalk (8) temporarily against the drawing edges (14) of the second picking rotor (10b) preceding and lagging behind the two adjacent drawing edges (14) of the first picking rotor (10a) and clamp the plant stalk (8), by means of the four contact points (26) of the plant stalk (8), against the drawing edges (14) of the first and second picking rotors (10a, 10b) into an arc shape approximating the enveloping circle (16) of the first picking rotor (10a), and on the second picking rotor (10b) a knife blade (20) is arranged between the preceding and lagging drawing edges (14) of the second picking rotor (10a), which knife blade cuts into the outside of the plant stalk (8) clamped in an arc shape.

A method for producing seed corn from the corn plants, for use in growing subsequent corn plants, includes measuring a moisture content of corn kernels on ears of the corn plants in the field and removing, by a combine harvester, the ears of corn from the corn plants when the moisture content satisfies a threshold moisture content. The method then includes separating the corn kernels from cobs of the ears of corn onboard the combine harvester and collecting the separated corn kernels for use as seed corn, whereby one or more subsequent corn plants can be grown from the collected corn kernels.

A stubble lean detection system for an agricultural harvester includes a controller having a memory and a processor. The controller is configured to receive a sensor signal indicative of an image of stubble within an agricultural field. The controller is also configured to determine whether an aggregate direction of lean of the stubble is forward, rearward, or mixed based on the image. Furthermore, the controller is configured to output an information signal to a user interface indicative of instructions to inform an operator of the aggregate direction of lean.

A header for an agricultural system includes a plurality of row units distributed across a width of the header, one or more sensors coupled to the header and configured to generate respective signals indicative of a plurality of objects in an area proximate the header, and a controller comprising a memory and a processor. The one or more sensors are oriented such that a field of view of the one or more sensors comprises an area forward of the header relative to a direction of travel of the header and above the header relative to a soil surface, and the controller is configured to receive the respective signals from the one or more sensors coupled to the header and process the respective signals to determine an amount of butt-shelling occurring on the header.

A method for creating a narrow row head unit which may include a back plate secured to a left gearbox and a right gearbox, and which gearboxes may be positioned adjacent one another. Each gearbox may provide rotational power to a pair of stalk rolls and a drive sprocket for a gathering chain. A right mounting tab may be secured to the back plate and the right gearbox, and a left mounting tab may be secured to the back plate and left gearbox. A right plate and leg may extend outward from the back plate adjacent the right mounting tab and a left plate and leg may extend outward from the back plate adjacent the left mounting tab. A narrow row head unit positioned left-of-center on a header may have the gathering chain positioned substantially over the right plate, and right-of-center substantially over the left plate.

An agricultural vehicle with a header including multiple row units each include a feed/snapping unit and a chopping unit. The header further includes a first power transmission shaft for driving the feed/snapping units, and a second power transmission shaft connected via a drivetrain to a drive at the agricultural vehicle. Each chopper unit includes a safety clutch and is connected via the safety clutch to the second power transmission shaft. At least one torque sensor is provided for the second power transmission shaft, drivetrain, or drive, which torque sensor is operationally connected to a torque fluctuation monitor configured to recognize a predetermined change in torque fluctuation indicating a safety clutch slip. The torque fluctuation monitor is operationally connected to a user interface for signaling the safety clutch slip.