Systems, methods and apparatus for adjusting the depth of a trench opened by a row unit of an agricultural planter. The row unit includes a trench depth adjustment assembly configured to modify the furrow depth. In one embodiment, the depth adjustment assembly may include a gear box having one or more gears which engage with a gear rack. The gear box may be pivotally connected to a depth adjustment body supporting a rocker that adjusts upward travel of gauge wheel arms. In another embodiment, the depth adjustment assembly may include a depth adjustment arm having a screw receiver that cooperates with a driven screw that adjusts the position of the depth adjustment arm acting on the gauge wheels to adjust trench depth.

A method including adjusting a changeable component of a seed planting machine when switching from a first variety of seed to a second variety of seed during planting, wherein the adjusting is based on a location of the planting machine.

An agricultural planting system for controlling the depth of an opener device comprising: an agricultural planter; an opener device mounted on the agricultural planter for engaging the ground of a field; a gauge wheel mounted on the agricultural planter for rotating on the ground of the field; a GPS device coupled to the agricultural planter, the GPS device configured to determine a location of the agricultural planter in the field; and a controller in electrical communication with the agricultural planter and the GPS device, the controller having predetermined settings associated with a map of the field, the controller being configured to select a relative elevation of the opener device and the gauge wheel based at least in part on the location determined by the GPS device, and produce, based on the location, a signal for adjusting the depth of engagement into the ground of the opener device.

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.

A method for single-grain application of seed by means of an agricultural sowing unit with at least one sowing element (200), which has a metering device (210) and a single grain-laying device (220), for the single-grain depositing of the seed along or within a seed furrow (310) arranged in the soil (300). A single grain (320) of seed is deposited along or within the seed furrow (310), adjacent to individual grains (320) of seed at a distance (l.sub.1) that can be selected or adjusted as required. A selectable or predetermined number (x) of seed capsules (100) is assigned to each single grain (320) of seed, whereby the seed capsules (100) are placed adjacent to the assigned single grain (320) along or within the seed furrow (310), and the active or stimulating substances (140) contained in the seed capsules (100) are released to support the associated single grain (320).

A seed planter meter that orients plant seed and a delivery mechanism which can transport the seed to the soil while maintaining the seed's orientation during transport to the soil and encapsulation in the soil.

The present invention provides an agricultural delivery system which may selectively deliver agricultural product (e.g., seeds or fertilizer) along one or more paths to row units according to a real-time location determined for the delivery system. The delivery system may include: a rotating drum configured to separate individual product for depositing along paths to row units; a sectional control system which may include wheels or gates for selectively cutting off product in the paths; and a controller in communication with a positioning system and the sectional control system. In operation, as the delivery system moves through a field, the controller may continuously determine a location for the delivery system. The controller may then operate to adjust individual product delivery, via the sectional control system, according to the location.

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.

A row unit for a seeding machine includes a first seed meter having a first metering member for singulating seeds and a second seed meter having a second metering member for singulating seeds. A motor is operably coupled to the first and second seed meters to selectively drive the first seed meter or the second seed meter.

The invention relates to a single seed dispenser (10) for a precision automatic sower comprising a cover (11) for seeds to be distributed joined to a body (12) containing a cavity (24) in communication with an aspirator of the seeds via a conduit (22) inserted in a hole (23) realised on the body (12), a distribution disc (13) with holes (38, 54) contained in a compartment delimited by said body (12) and by said cover (11); a driving disc (31) joined through pins (53) to the distribution disc (13), both discs being put into rotation by means of a shaft (29) actuated by an actuator for commanding rotation of the discs (13, 31); and a selector device (14) for the seeds pivoted on the edge of the body (12), where the selector device (14) comprises a plate (142) which presents, on a side facing the centre of the distribution disc (13), at least two toothed portions (143, 144), having teeth of different sizes and a curved sector (59) mounted against the surface of the distribution disc (13) opposite to the plate (142) and is provided with protrusions (591) having inclined surface (592) facing the distribution disc (13) at holes (38) therein.