An agricultural implement system includes a down force cylinder configured to apply a downward force to a row unit, and a depth control cylinder configured to vary a penetration depth of a ground engaging tool of the row unit. The agricultural implement system also includes a valve assembly in fluid communication with the down force cylinder and the depth control cylinder. The valve assembly is configured to automatically adjust the downward force by varying fluid pressure within the down force cylinder based on fluid pressure within the depth control cylinder.

Described herein are implements and applicators for placement of fluid applications with respect to agricultural plants of agricultural fields. In one embodiment, a fluid applicator for applying fluids to plants in rows in a field includes a frame, a coulter connected to the frame and disposed to open a trench between the rows of plants, and at least one application member connected to the frame or to the coulter and disposed to apply fluid to a rhizosphere of the plants.

A trench detection system for an agricultural implement includes a row unit configured to form a trench in soil, to deposit an agricultural product in the trench, and to at least partially close the trench after deposition of the agricultural product. The trench detection system also includes a tactile probe assembly behind the row unit that, in operation, contacts the soil after closure of the trench and generates a signal indicative of a quality of the closure.

Disclosed are devices, systems and methods related to agricultural planters. In some implementations, the row unit includes a soil engaging member, where the soil engaging member engages at least one sidewall of a trench and displaces soil from the sidewall to cover the seed. In further implementations, the row unit includes a sensing system for sensing sidewall compaction and/or soil moisture.

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.

In one embodiment, an agricultural implement system includes a row unit, the row unit configured to dispose seed into a ground trench, and closing system corresponding to the row unit, the closing system configured to close the ground trench after disposition of the seed. The agricultural implement system further includes a double acting cylinder mechanically coupled to the closing system, the double acting cylinder comprising a cylinder side port and a rod side port and a fluid source fluidly coupled to the cylinder side port and configured to provide a cylinder side fluid. The agricultural implement system additionally includes a filter fluidly coupled to the rod side port. Filtered fluid enters the double acting cylinder via the rod side port.

A furrow closing unit for a planting unit includes a frame adapted to be pivotally coupled with the planting unit, and a pair of coulter blades rotatably attached to the frame and adapted to move soil into a seed groove to facilitate a closing of the seed groove. The furrow closing unit further includes a basket assembly fixedly attached to the frame and having a basket adapted to roll over a soil surface behind the pair of coulter blades. The basket includes a pair of end caps and a plurality of spokes extending between the pair of end caps. The plurality of spokes is arrayed circularly around a central axis of the basket and is arranged spaced apart from each other.

A control system for a tillage implement broadly includes front and rear sensors, a leveling assembly, and a controller. The front sensor is positioned on a front of a central section, wherein the front sensor is configured to obtain height information indicative of a height of the front of the central section above a ground. The rear sensor is positioned on a rear of the central section, wherein the rear sensor is configured to obtain height information indicative of a height of the rear of the central section above the ground. The leveling assembly is configured to adjust a front to rear orientation of the central section. The controller is configured to receive the height information from the front sensor and the height information from the rear sensor, and to provide instructions to the leveling assembly to adjust the front to rear orientation of the central section based on the received height information.

An intelligent seeding and fertilizing machine for intercropping comprises: a fixed frame, a plurality of seeding devices arranged in parallel in the fixed frame and a plurality of guide columns fixedly connected in the fixed frame, where one end of fixed frame close to a cutting mechanism is provided with a lifting plate, a side of the fixed frame is in sliding contact with an inner wall of a lifting groove, the lifting groove is provided with a lifting screw, a lifting motor is fixedly connected to a top surface of the lifting plate; each seeding device includes a frame, and a bottom surface of the frame is respectively provided with a cutting mechanism, a cleaning mechanism, a furrowing mechanism, a fertilizing mechanism, a seeding mechanism and a soil covering mechanism, and the above mechanisms and the lifting motor are all electrically connected with a control system.

A closing wheel assembly is provided for a row unit agricultural planter. The planter is configured to open a trench in the soil and the closing wheel assembly is configured to close the trench. A resilient flap is provided for firming and leveling the soil returned to the trench by the closing wheel assembly. Pivotally mounted offset closing wheels are also provided.