A seed delivery system comprising a seed meter supported by a row unit frame and comprising a metering disc configured to hold a plurality of seeds; a seed accelerator configured to flow a pressurized airstream therethrough, the accelerator comprising an air entrainment chamber configured to extract and entrain the seeds from the metering disc in the airstream; a seed dispensing tube comprising a top end receiving the airstream with entrained seeds from the seed accelerator and a bottom end defining a discharge opening for dispensing the seeds into a planting trench; and an air deflection baffle disposed adjacent the dispensing tube between the top and bottom ends, the baffle configured to block at least a portion of air from entering the trench which flows downwards along the dispensing tube. The baffle may be mounted to the tube. One or more air vents vent excess air in the tube to atmosphere.

An agricultural row unit having: a frame (110); a trench opening assembly (122) configured to open a trench in a soil surface as the trench opening assembly (122) moves in a forward direction of travel; a sub-trench opener (105) disposed in the trench to open a sub-trench; a seed conduit (130) configured to deposit seeds into the sub-trench; and a trench closing assembly (146) for closing the trench and sub-trench.

An agricultural system includes at least one processor and memory storing instructions executable by the at least one processor. The instructions, when executed, cause the agricultural system to identify a reference position on an agricultural surface, control a material application system to apply material to the agricultural surface based on the reference position, sense a characteristic of the agricultural surface after the material is applied to the agricultural surface, identify a location of the applied material based on the characteristic, identify an action based on the location of the applied material, and generate a control signal to perform the action.

An agricultural row unit (100) having: a frame (110): a trench opening assembly (120) configured to open a trench (104) in a soil surface as the trench opening assembly (120) moves in a forward direction of travel (D): the trench opening assembly (120) comprises a first disc (62), wherein the first disc (62) is notched and has a tooth (64) between notches (63); a seed conduit (130) configured to deposit seeds into the trench (104); and a trench closing assembly (146) for closing the trench (104).

A seed delivery system having: a seed meter (128) comprising a rotatable metering disc (129) configured to hold an array of singulated seeds; a seed accelerator (400) comprising an accelerator wheel (401) configured to dislodge the singulated seeds from the metering disc, and a seed chute (130) configured to receive the seeds dislodged by the accelerator wheel; wherein the accelerator wheel is rotatable to dislodge the seeds from the metering disc in a radial outward direction and accelerate dispensing of the seed to the seed chute; and a method for dispensing seeds for planting, including: forming a trench in soil with a row unit; rotating a metering disc holding an array of singulated seeds; rotating an accelerator wheel; dislodging the seeds from the metering disc in a radial outward direction with the accelerator wheel; and delivering the seeds to the trench.

A seed meter for agricultural planters is provided. The seed meter includes a seed disk provided in a seed disk housing. The seed meter includes a vacuum producing device configured to generate a vacuum pressure in the seed disk housing for loading seed onto the seed disk. The seed meter includes an outlet coupled to the seed disk housing. The outlet has an outlet pressure for ejecting the loaded seed from the seed meter. An advantage of such a seed meter is not having to change the seed disk between different types of seeds. Another advantage includes being able to control the output pressure and the vacuum pressure.

A planting unit for a seeding machine having a frame member and a seed meter mounted thereto. The seed meter has a housing and a metering member rotatably mounted therein. The metering member has a sidewall with an inner surface and an outer surface with a rim portion of the sidewall adjacent an outer edge of the sidewall. The inner surface of the side wall and the housing form a trough at a bottom portion of the metering member to hold a seed pool. A mechanical seed delivery system takes seed from the metering member and moves seed to a discharge location adjacent a seed furrow formed in soil beneath the seeding machine.