Abstract: A plow moldboard assembly having multiple ground engaging blades is provided with a plurality of elongate blade receiving slots having an open top and an open bottom and each defined by front and rear walls and two end walls disposed rearward of the rear major face of the moldboard and which extend along the bottom edge of the moldboard. A plurality of ground engaging blades are arranged in side-by-side relationship, each one having front and rear blade faces and upper and lower blade portions. The front face of the lower portion is forwardly offset relative to the front face of the upper rectangular portion such that the upper rectangular portion is received in the slot and held in position by detachable securing means. Damaged blades, which are relatively light in weight can be individually removed from the elongate slot and replaced with an undamaged blade. If desired, the front and rear faces of all of the blades can collectively be reversed thereby extending the life of each blade.