A ground treatment device including a housing fabricated from at least one injection molded part. An axle with a ground treatment attachment mounted thereto can be rotatably secured to opposing sides of the housing. The housing can include a gear housing structure which is configured to house gears for enabling operation of the ground treatment attachment using a power tool. An upper frame can be secured to opposing sides of the housing. The ground treatment attachment can be configured to cultivate the ground.

A rolling soil probe which may be pulled by a tractor or a truck or mounted on a trailer. The rolling soil probe includes a rotatable square wheel having four sides, each of which has a soil probe extending outwardly therefrom.

A rolling soil probe which may be pulled by a tractor or a truck or mounted on a trailer. The rolling soil probe includes a rotatable square wheel having four sides, each of which has a soil probe extending outwardly therefrom.

An edger blade is provided. The edger blade may include a body member having a hub with a mounting aperture extending through the hub. The edger blade has two hammer portions coupled to and extending in opposite directions from the hub. Each hammer portion includes an arm and a hammer head. The arm is coupled between the hub and the hammer head. In embodiments, the body member may be a unitary body formed of AR 400 steel alloy and the arm may include an aperture extending therethrough. Further, in embodiments, the aperture through the arm may have a softer material coupled within the aperture.

An edger blade is provided. The edger blade may include a body member having a hub with a mounting aperture extending through the hub. The edger blade has two hammer portions coupled to and extending in opposite directions from the hub. Each hammer portion includes an arm and a hammer head. The arm is coupled between the hub and the hammer head. In embodiments, the body member may be a unitary body formed of AR 400 steel alloy and the arm may include an aperture extending therethrough. Further, in embodiments, the aperture through the arm may have a softer material coupled within the aperture.

A disc device for an agricultural machine includes at least one disc implement, an arm, at one end of which the implement is journalled in bearings at an axle, and a bearing, which is arranged at the opposite end of the arm and is adapted to be fastened at a transverse beam on the frame of the agricultural machine. The disc device includes in the circumference direction of the disc implement mainly equally distributed, freestanding, out towards the periphery radially extending, protruding parts, wherein each protruding part has an outer edge, which extends in the range 15-75 degrees in relation to the plane of the disc implement.

A disc device for an agricultural machine includes at least one disc implement, an arm, at one end of which the implement is journalled in bearings at an axle, and a bearing, which is arranged at the opposite end of the arm and is adapted to be fastened at a transverse beam on the frame of the agricultural machine. The disc device includes in the circumference direction of the disc implement mainly equally distributed, freestanding, out towards the periphery radially extending, protruding parts, wherein each protruding part has an outer edge, which extends in the range 15-75 degrees in relation to the plane of the disc implement.

A disc harrow implement has gang assemblies each having aligned disc gangs carried by a support bar. Each disc gang has disc blades spaced along an axis of the disc gang. The disc gangs of each gang assembly are coaxially aligned to create a line of substantially equally spaced disc blades. A plugging detection system alerts an operator if one or more of the disc gangs are rotating at a rotational speed that is slower than rotational speeds of the remaining disc gangs. The plugging detection system includes a gang rotation sensor for each of disc gangs. Each gang rotation sensor is configured to measure the rotational speed of the connected disc gang. A control module compares the rotational speed of each disc gang to the rotational speed of the disc gangs and generates an output that indicates when a disc gang is rotating more slowly that the other disc gangs.

A land preparation tool includes a tool body having a cutting surface, a mounting surface, an opening, and a channel. The cutting surface has a blade positioned at a distal end thereof. The mounting surface has a non-planar profile and is disposed on the tool body opposite the cutting surface. The opening is disposed on the mounting surface and the channel extends from the opening at least partially into the tool body. Other embodiments are described and claimed.

A land preparation tool includes a tool body having a longitudinal axis; a cutting surface having a distal end and a blade positioned at the distal end; a mounting surface disposed on the tool body opposite the cutting surface, the mounting surface having an apex extending along about half of the mounting surface parallel to the longitudinal axis, a first mounting surface extending from the apex, a second mounting surface extending from the apex, and an opening disposed on the mounting surface; and a channel extending from the opening only partially into the tool body