Abstract
Chisel attachments for the Noble blade cultivator are described. The attachments on the blade holder are designed to chisel a hardpan subsoil to a fixed depth below the blade cut. They differ from the present commercial types of chiseling equipment in that the shanks are attached to a main sub-frame instead of a top-frame. Thus, chiseling with the blade results in a minimum disturbance of the surface mulch and the mulch moving over the blade covers the subsurface vertical grooves or kerfs made by the chisels. Water infiltration is promoted in the surface soil by the surface mulch and in the subsoil by the kerfs. Cultivation with the chisel attachments on the blade does not interfere with the trash mulch necessary for surface erosion control and improves the physical condition of the subsoil.
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