Patent ID: 7640874

Claim:
A combination implement adapted for forward movement over the ground, the implement comprising a generally rectangular frame having a transversely extending forward frame member and transversely extending trailing frame members, a transversely extending rockshaft rotatably connected to the forward frame member and positioned forwardly of the forward frame member, a plurality of fertilizer openers spaced along the rockshaft and extending downwardly and rearwardly from the rockshaft, the fertilizer openers including opening disks and opener depth gauging wheels for depositing material in the ground, a plurality of ranks of frame mounted seed openers spaced on the trailing frame members rearwardly of the fertilizer openers for engaging the ground rearwardly of the fertilizer openers, lift structure for raising and lowering the frame relative to the ground to change operating depth of the frame mounted seed openers, and means for rotating the rockshaft to change orientation of the fertilizer openers relative to the frame and operating downpressure of the fertilizer openers.