An apparatus and system for positioning a trailing wheel behind a row planting unit in a row planting system and for transferring weight between a row closing unit with row closing wheels and a trailing wheel while providing for independent movement of the trailing wheel and row closing wheels is provided. A trailing or firming wheel assembly is positioned behind a row closing unit with a set of row closing wheels. A cam-based depth limiting system provides for a depth stop and depth limiting adjustments while providing for independent movement of the trailing wheel and set of row closing wheels.

A carrier adjustment assembly for coupling to a frame member of an implement includes a laterally adjustable carrier configured to be coupled to an opener and a first outlet providing at least one nutrient. The assembly further includes a plurality of lateral spacers positioned adjacent to the carrier to laterally adjust the carrier and provide a plurality of adjustment positions. The carrier adjustment assembly facilitates lateral adjustment of the carrier by removal of at least one captively held lateral spacer that sets the lateral adjustment of the carrier, a lateral adjustment of the first outlet, and an adjustment of a lateral separation between a seed row provided by a second outlet and a nutrient row provided by the first outlet.

A trench closing assembly including a fluid applicator.

A row unit of a seeder includes a frame configured to be coupled to a toolbar of the seeder. The row unit also includes a single opener disc rotatably coupled to the frame and a closing system. The closing system includes a closing disc arm pivotally coupled to the frame and a closing disc rotatably coupled to the closing disc arm. The closing system also includes a packer wheel arm pivotally coupled to the frame. The packer wheel arm and the closing disc arm are configured to rotate independently of one another relative to the frame. In addition, the closing system includes a packer wheel rotatably coupled to the packer wheel arm. Furthermore, an agricultural product storage compartment is not non-movably coupled to the frame.

A row unit of a seeder includes an opener having a shank and a blade rigidly coupled to the shank. The shank is configured to be movably coupled to a toolbar of the seeder. The row unit also includes a closing system having a frame coupled to the opener. The frame is only coupled to the toolbar via the opener. In addition, the closing system includes a closing disc arm pivotally coupled to the frame and at least one closing disc rotatably coupled to the closing disc arm. The closing system also includes a packer wheel arm coupled to the frame and a packer wheel rotatably coupled to the packer wheel arm.

An agricultural implement includes at least one row unit having a plurality of support members, each of which is pivotably coupled to an attachment frame or another of the support members to permit vertical pivoting vertical movement of the support members, and a plurality of soil-engaging tools, each of which is coupled to at least one of the support members. A plurality of hydraulic cylinders are coupled to the support members for urging the support members downwardly toward the soil. A plurality of controllable pressure control valves are coupled to the hydraulic cylinders for controlling the pressure of hydraulic fluid supplied to the cylinders. A plurality of sensors produce electrical signals corresponding to predetermined conditions, and a controller is coupled to the sensor and the controllable pressure control valves. The controller receives the electrical signals from the sensors and produces control signals for controlling the pressure control valves.

An agricultural implement system having: a row unit coupled to a tool bar of an agricultural implement; an opener system coupled to the row unit and configured to engage soil to form a trench; a soil condition sensor; a closing system, configured to close the trench created by the opener system, the closing system comprises: a first disk configured to engage the soil and close the trench; a second disk configured to engage the soil and close the trench; and a controller configured to couple to the soil condition sensor and control a position or orientation of the first disk or the second disk in response to feedback from the soil condition sensor.

A seed-sowing assembly, especially of rice, consisting of at least two single seeding units arranged in parallel and displaced longitudinally from each other, which allows a narrow separation between furrows, wherein each of said single units comprises a first pivoting support arm connected at one of its ends that supports a load regulator; and a second pivoting support arm connected to another end of the first support arm that supports at least one furrow-generating disc; at least one depth limiting wheel coupled to at least one furrow-generating disc; a seed contact wheel; and a third pivoting support arm connected to one end of the second support arm that supports two furrow-closing wheels. A seed-sowing machine comprising the seed-sowing assembly.

A row unit of an agricultural implement includes an opening system configured to engage soil to form a furrow, sensors configured to detect a soil tightness, soil conditions, operational conditions, or a combination thereof, and a closing system configured to close the furrow. The closing system includes a first closing disc configured to engage the soil and close the furrow and a second closing disc configured to engage the soil and close the furrow. The row unit also includes a controller configured to receive feedback from the sensors and to control a position, an orientation, or both, of the first closing disc, the second closing disc, or both, in response to feedback from the sensors.

A seed trench depth sensor is adapted to mount to an agricultural implement. The trench depth sensor determining the difference between a distance measured to a bottom of the seed trench by a first sensor and a distance measured to a surface of the soil by a second sensor disposed rearward of the first sensor.