An agricultural vehicle includes a chassis; a header carried by the chassis and including a cutter mechanism, the header being adjustable in a vertical direction; a swath roller carried by the chassis behind the header; a roller actuator connected to the swath roller and configured to adjust the swath roller in the vertical direction; and a controller coupled to the roller actuator. The controller is configured for: detecting when the header raises in the vertical direction; recording a header raising point where the header raises; determining when the swath roller reaches the header raising point; and signaling the roller actuator to raise the swath roller when the swath roller reaches the header raising point.

An agricultural harvesting system including a chassis, a plurality of ground support devices carrying the chassis in a direction of travel, and a threshing section carried by the chassis. The threshing section produces residue that is sent to a spreader system. The spreader system has a first orientation and a second orientation. The spreader system includes a support device and a spreader. The support device is in ground contact and is positioned to a side of the chassis relative to the direction of travel when the spreader system is in the first orientation. The support device is positioned aft of the chassis relative to the direction of travel when the spreader system is in the second orientation. The spreader is carried by the support device and is configured to receive at least some of the residue.

An embodiment includes a combine including a sensor positioned to detect a physical characteristic of a windrow produced by the combine or an operational state of the combine, a windrow door for expelling the residue from the combine, a windrow door actuator coupled to the windrow door to position the windrow door at a windrow door angle, a windrow chute for receiving the expelled residue from the windrow door and guiding the residue into a windrow, a windrow chute actuator coupled to the windrow chute to position the windrow chute at a windrow chute angle, a controller configured to determine a physical characteristic of the windrow or the operational state of the combine based on an output of the sensor, and adjust at least one of the windrow door angle or the windrow chute angle based on the determined physical characteristic or operational state.

An agricultural combine including a residue processing system including a straw spreader and at least one chaff spreader. The at least one chaff spreader includes a first chaff accelerator and a second chaff accelerator so that, in operation, chaff particles are accelerated by the first chaff accelerator to an intermediate energy level after which the chaff particles are further accelerated by the second chaff accelerator to an ejection energy level. The second chaff accelerator includes grinding elements for grinding the chaff particles while accelerating them to the ejection energy level.

A spreader for a harvesting machine includes a pair of counter-rotating spreader units each having an impeller and a fan supported on a common shaft. A plenum routes at least part of the airflow from a first fan to merge with chaff exiting the opposite impeller and at least a part of the airflow from the opposite fan to merge with chaff exiting the impeller on the machine side of the first fan. In one embodiment all airflow from a fan is ducted to an impeller on the opposite side, while a second embodiment commingles airflow from both fans in a plenum from which portions of the mixed airflows is directed to the chaff exiting each impeller exit. In a third, embodiment an established airflow receives chaff from the impeller on the side on which that airflow is generated.

A weed seed devitalization arrangement for use with a. combine harvester, attached to the combine harvester, towed behind, or standalone. The weed seed devitalization arrangement receives weed seeds entrained in a. portion of the air and material previously discharged from a combine harvester or other crop/lawn cutung apparatus. The weed seed devitalization arrangement includes a roton'stator arrangement including but not necessarily excluding other elements, one or more stationary substantially circular array of weed seed impact members, the members being arranged so as to impact weed seeds being provided into the substantially circular array; and one or more rotatable substantially circular array of weed seed impact members, the rotatable array movable with respect to a stationary substantially circular array of weed seed impact members, the impact members of the rotatable substantially circular array arranged to impact weed seeds being directed through the rotatable substantially circular array. Another element may be a driven rotating clement at or near the central portion of the rotor/stator arrangement for receiving the portion of air and material discharged from the combine harvester entrained with weed seeds and for providing a flow of air and entrained material including weed seed into the arrays of the arrangement.

An agricultural combine including a residue spreading system adapted for spreading residue onto a field. The residue spreading system includes a seed container and a seed dispensing system adapted to dispense seeds from the seed container into the residue so that, in operation, the dispensed seeds are spread onto the field together with the residue.

A method for operating an agricultural combine in a field using at least one field-map. The method includes steps of determining (S1) a position of the agricultural combine in the field, retrieving (S2) field-related data from the at least one field-map related to the determined position in the field, and adjusting (S3) residue processing system settings of the agricultural combine based on the retrieved data.

A spreader arrangement for an agricultural harvester includes a windrow chute having a first position for building a windrow in which the chute angles downwardly from a proximal edge to a distal edge of the chute, and a second position for cleanout of the chute in which the chute angles downwardly from the distal edge to the proximal edge of the chute. Adjustment from the first position to the second position and back to the first position can occur automatically when the combine is operating but not currently harvesting, such as during the time period between when a harvesting swath is completed and the next harvesting swath is commenced, so that accumulated crop residue material can be dislodged from the windrow chute without disrupting harvesting or the windrow building process.

An agricultural spreader system includes a first motor, a second motor, and a valve system coupled to the first motor and to the second motor. The first motor is configured to be driven by a working fluid and to drive a first spreader disc in rotation. The second motor is configured to be driven by the working fluid and to drive a second spreader disc in rotation. The valve system is configured to transition between a series flow arrangement and a parallel flow arrangement. The series flow arrangement is configured to direct the working fluid to the second motor through the first motor. The parallel flow arrangement is configured to direct a first portion of the working fluid to the first motor, and to direct a second portion of the working fluid to the second motor.