A method of manufacturing an agricultural tillage disk blade includes providing a substantially circular-shaped disk body with an outer peripheral edge and a central opening that defines a rotation axis, the outer body being disposed within a first plane. A plurality of waves is formed in a predetermined pattern in the outer peripheral edge of the disk body, and the outer peripheral edge is sharpened to form a plurality of teeth such that at least a portion of the sharpened outer peripheral edge is disposed within a second plane that is parallel to the first plane and substantially perpendicular to the rotation axis. The method also includes machining a plurality of relief portions in each of the plurality of waves at a location radially inward of the plurality of teeth, and heat treating the disk body after the sharpening and machining steps.

A method of manufacturing an agricultural tillage disk blade includes providing a substantially circular-shaped disk body with an outer peripheral edge and a central opening that defines a rotation axis, the outer body being disposed within a first plane. A plurality of waves is formed in a predetermined pattern in the outer peripheral edge of the disk body, and the outer peripheral edge is sharpened to form a plurality of teeth such that at least a portion of the sharpened outer peripheral edge is disposed within a second plane that is parallel to the first plane and substantially perpendicular to the rotation axis. The method also includes machining a plurality of relief portions in each of the plurality of waves at a location radially inward of the plurality of teeth, and heat treating the disk body after the sharpening and machining steps.

A system and method cuts and increases surface area of surface stubble material while contemporaneously mulching, tiling and aerating the soil. A discoidal coulter blade is configured with sharpened areas at the circumference for cutting the surface stubble as well as reducing the downward pressure required for the blade to enter the type and depth of soil desired. The sharpened areas include a first long bevel, a second shorter bevel and an optional opposite counter bevel. The first and second bevels aid in coulter blade lifespan ensuring a self-sharpened blade while the counter-bevel allows mating with a second coulter blade at a sharpened point.

A system and method cuts and increases surface area of surface stubble material while contemporaneously mulching, tiling and aerating the soil. A discoidal coulter blade is configured with sharpened areas at the circumference for cutting the surface stubble as well as reducing the downward pressure required for the blade to enter the type and depth of soil desired. The sharpened areas include a first long bevel, a second shorter bevel and an optional opposite counter bevel. The first and second bevels aid in coulter blade lifespan ensuring a self-sharpened blade while the counter-bevel allows mating with a second coulter blade at a sharpened point.

A liquid manure spreader includes a spreader vehicle, a transversely extending injector boom having at least one outer boom section pivotable between a transversely-oriented position and a vertically-oriented position, at least one first actuatable linkage assembly for translating the boom vertically between a lowered working position and a raised position, and at least one second actuatable linkage assembly for arcuately pivoting the boom about an axis parallel to the transverse axis between a highest vertical height position and a lower transport position when the boom is in the raised position and the at least one outer boom section is in the vertically-oriented position.

A liquid manure spreader includes a spreader vehicle, a transversely extending injector boom having at least one outer boom section pivotable between a transversely-oriented position and a vertically-oriented position, at least one first actuatable linkage assembly for translating the boom vertically between a lowered working position and a raised position, and at least one second actuatable linkage assembly for arcuately pivoting the boom about an axis parallel to the transverse axis between a highest vertical height position and a lower transport position when the boom is in the raised position and the at least one outer boom section is in the vertically-oriented position.

A coulter assembly for an agricultural implement. The coulter assembly includes a support structure and a disc blade rotatably mounted to the support structure. The coulter assembly also includes a spring assembly coupled to the support structure and configured to urge the disc blade into soil. The spring assembly includes a variable rate spring.

A coulter assembly for an agricultural implement. The coulter assembly includes a support structure and a disc blade rotatably mounted to the support structure. The coulter assembly also includes a spring assembly coupled to the support structure and configured to urge the disc blade into soil. The spring assembly includes a variable rate spring.

Depth of penetration of a soil coulter is obtained using a sensor being mounted on the side of the disk adjacent the edge such that the sensor as the disk rotates is located above the surface of the soil during a first part of its rotation and is located below the surface during a second part of its rotation. This sensor is also used to detect characteristics of material outside the coulter as it rotates and temperature. This data is used in a growth model to generate predicted growth data to allow control of growth remediation materials to the crop.

Depth of penetration of a soil coulter is obtained using a sensor being mounted on the side of the disk adjacent the edge such that the sensor as the disk rotates is located above the surface of the soil during a first part of its rotation and is located below the surface during a second part of its rotation. This sensor is also used to detect characteristics of material outside the coulter as it rotates and temperature. This data is used in a growth model to generate predicted growth data to allow control of growth remediation materials to the crop.