Sowing element for precision agricultural seeders comprising a device for selecting the seed, of the type which is formed of a perforated disc having opposing faces that are subject to a pressure differential and a pressurisation device associated with the disc for applying the pressure differential to the faces of the disc, the pressurisation device including a pressurisation bell combined with the disc so as to pneumatically couple thereto in order to guarantee said pressure differential, wherein the bell is rotatably idle with respect to the disc.

A particle delivery system of an agricultural row unit includes a particle belt housing configured to be disposed adjacent to a particle metering and singulation unit and a particle belt disposed within the particle belt housing. The particle belt includes a base, a plurality of flights extending from the base, a particle engagement section configured to receive a particle from the particle metering and singulation unit, and a particle exit section configured to expel the particle toward a trench in soil. The particle delivery system includes a flex system coupled to the particle belt housing proximate to the particle exit section of the particle belt, where the flex system is configured to drive each flight of the plurality of flights to temporarily flex, such that the flight drives the particle to accelerate through the particle exit section in response to straightening of the flight.

A singulating meter apparatus comprising a seed disc operative to be rotated in a housing about a disc rotational axis with inner and outer rows of seed apertures defined by the seed disc. A singulator is arranged to protrude from an outer and inner side of both paths. A seed output port is operative to receive seeds from the seed apertures in the inner and outer aperture rows. In a single mode both rows are dispensed into a single seed conduit, and in a dual mode the seeds from each row are dispensed into individual conduits. A seed counting sensor is mounted on the seed output port counts the seeds passing through the seed output port in both the inner and outer seed conduits. A four row disc is also provided that as well has dual and single options.

Meters for fertilizers, small seeds, and chemicals include a housing defining a loading chamber, a rotatable metering disk provided with a receiving surface and a discharge surface, the disk including metering orifices; a ring including a discharge opening, and an insulating barrier arranged in the interior of the housing, the insulation barrier forming an insulating chamber on the rotatable disk and defining an inlet region of the disk and an output region of the disk; a metering bulkhead associated with the insulating barrier in the inlet region of the rotating disk with metering orifices loaded, the metering bulkhead being arranged on the rotatable metering disk so that a lower portion of the metering bulkhead is coplanar to the receiving surface of the rotatable disk.

The disclosed pneumatic seed meters for small seeds and fine grains may include a rotational disk with a plurality of radially disposed holes. The holes may define a seed path when the rotational disk rotates. The seed meters may also include a sealing structure that is positioned and configured to inhibit seed leakage from the seed meter. The sealing structure may define a seed containment chamber. Various other related methods, systems, and devices are also disclosed.

In one aspect, a calibration method for a seed meter may include controlling an operation of a singulator to apply an initial aggressiveness setting for the singulator. The method may further include controlling the seed meter to rotate a seed transport member of the seed meter relative to a seed chamber of the seed meter containing a plurality of seeds. The method may additionally include performing a calibration cycle, which may include monitoring a first parameter indicative of a number of occurrences of seed multiples as the seed transport member rotates, iteratively adjusting the aggressiveness setting from the initial aggressiveness setting as the first parameter is being monitored, and when the first parameter crosses a first threshold, recording the associated aggressiveness setting as a minimum aggressiveness setting for the singulator.

A particle delivery system of an agricultural row unit includes a shuttle track configured to be disposed adjacent to a particle metering and singulation unit, shuttles movably disposed along the shuttle track, and a track belt disposed inwardly of the shuttle track. Each shuttle is configured to receive a particle from the particle metering and singulation unit at a particle reception section of the shuttle track and release the particle toward a trench in soil at a particle deposition section of the shuttle track. The track belt includes paddles, and each paddle is configured to move a respective shuttle along a particle transfer section of the shuttle track from the particle reception section to the particle deposition section.

A particle delivery system of an agricultural row unit includes a particle belt configured to be disposed apart from a particle metering and singulation unit and a particle acceleration system configured to apply a force to a particle to accelerate the particle from the particle metering and singulation unit and to guide the particle toward the particle belt. The particle belt is configured to receive the particle accelerated from the particle metering and singulation unit, and the particle acceleration system is configured to apply the force to the particle to accelerate the particle from the particle metering and singulation unit to the particle belt, such that a particle speed of the particle reaches a target particle speed, is within a target percentage of a belt speed of the particle belt, or both, as the particle reaches the particle belt.

A seed meter for an agricultural planter in which the seed disc is rotatably mounted within a seed meter housing. As the seed disc rotates, the apertures in the disc rotate along a seed aperture path through a horizontally adjacent seed pool area. The seed disc includes cavities disposed along the seed aperture path to agitate the seeds in the seed pool area. A singulator having multiple co-planar singulator surfaces is biased against the seed side surface of the seed disc.

Sowing element for precision agricultural seeders comprising a device for selecting the seed, of the type which is formed of a perforated disc having opposing faces that are subject to a pressure differential and a pressurisation device associated with the disc for applying the pressure differential to the faces of the disc, the pressurisation device including a pressurisation bell combined with the disc so as to pneumatically couple thereto in order to guarantee said pressure differential, wherein the bell is rotatably idle with respect to the disc.