A seed drill having a frame, to which at least one seeding coulter and a fertiliser coulter arranged upstream of the seeding coulter in a working direction are connected. The seeding coulter and the fertiliser coulter are each assigned depth control.

Disclosed herein are various devices, systems, and methods for protecting open seed trenches form ingress of foreign material, such as plant residue. The preventing foreign material from entering the open seed trench during planting increases crop yield by minimizing delayed germination and late plant emergence. Various implementations of adjustable row cleaners may be used to prevent ingress of foreign material. Also, various shields may be disposed on the row units of a planter to prevent ingress of foreign material.

An agricultural planter is operable in a travel direction and a travel velocity and configured to dispense seeds into a furrow formed within an agricultural surface. An adjustment assembly is for the agricultural planter and includes a bracket configured to be coupled to a frame of the agricultural planter and a debris cleaner coupled to the bracket. The debris cleaner is configured such that during operation of the agricultural planter the debris cleaner has, relative to the travel direction, a leading edge and a trailing edge. The debris cleaner is movable such that a distance between the leading and trailing edges in the travel direction is adjustable.

An agricultural row unit having a coulter assembly comprising a pair of gauge wheels and a coulter between the pair of gauge wheels, wherein the coulter is configured to penetrate soil and cut debris. The row unit also having a soil engaging assembly comprising sweep and a seed tube, wherein the sweep is configured to open a seed channel and the seed tube is configured to deposit seeds into the seed channel. The row unit also including a closing assembly configured to replace soil displaced by the coulter and sweep. The row unit configured for independent and optionally automatic variable depth control of the seed channel.

Techniques and/or systems are disclosed for a soil density detection system. The system includes at least one soil-density sensing device disposed on an agricultural implement traveling in a forward direction, the soil-density sensing device being a non-contact sensor configured to detect soil density throughout a target area in front of the agricultural implement and to generate a signal or image representative of the detected soil density. The system includes a control device operatively coupled with the soil-density sensing device and having a processor; a memory device operatively coupled with the processor; and soil density detection logic stored in the memory device of the control device. The soil density detection logic is executable by the processor to determine the soil density throughout the target area. The control device is configured to generate a signal based at least upon the data indicative of the soil density detected throughout the target area.

A harvesting and sowing integrated compound operation machine, including a combine harvester, a stubble cleaning device, a topsoil loosening device, a fertilization device, a rotary tillage and ditching device, a sowing device, a detection device, a first driving device, a second driving device and a control device, wherein the stubble cleaning device is mounted below a header of the combine harvester; and the topsoil loosening device, the fertilization device, the rotary tillage and ditching device and the sowing device are mounted at a rear of a chassis of the combine harvester.

In one aspect, a system for controlling the operation of a residue removal device of a seed-planting implement may include a residue removal device configured to remove residue from a path of the seed-planting implement. The system may also include a sensor configured to capture data indicative of a residue characteristic associated with a portion of the field within a detection zone positioned forward of the residue removal device relative to a direction of travel of the seed-planting implement. Furthermore, the system may include a controller communicatively coupled to the sensor. As such, the controller may be configured to monitor the residue characteristic associated with the portion of the field within the detection zone based on data received from the sensor. Additionally, the controller may be further configured to control the operation of the residue removal device based on the monitored residue characteristic.

A row cleaning/closing wheel having debris removing and/or furrow closing performance with complimentary left and right cleaning/closing wheel pairs having a sloped body portion at an angle relative to a hub base for cleaning and/or closing operation during row planting. The sloped body portion and the hub base may form a continuous curve from the center of the hub base to a set of teeth on the outer edge of the sloped body portion. The row cleaning wheel for use with a floating row cleaner and/or closing arm assemblies attached to a row planter during planting operation.

In some implementations, an agricultural row unit assembly can include a pair of tine assemblies each having at least one tine mounted to a hub, said hub adapted to rotate about a first axis, where rotation of said pair of tine assemblies fractures soil and forms a pair of outer edges of a tilled row with a row width. In some embodiments, the device can include a rolling cultivator adapted to form a generally flat profile to said tilled row. In some embodiments, the device can include a seedbed cultivator adapted to work through said soil in the area defined by the row width. In some embodiments, the device can include a pair of gauge wheels fastened to each end of the shaft such that said gauge wheels are located outside said pair of outer edges of a tilled row.