Design of the Low-Till Parabolic Subsoiler

Gordon R. Tupper


A Low-Till Parabolic Subsoiler was designed at the MAFES, Delta Branch in 1993. The new subsoiler utilizes a straight, parabolic shaped shank which is positioned 28 angle from vertical (away from the center of the subsoiler) to reduce the amount of soil surface disturbance. This angle allows the shank to run in fractured soil, even under less than ideal soil conditions for reducing draft requirements. The leading edge of the shank was cut at a 45 angle to provide a sharp edge to reduce soil lift and draft requirements. The foot was designed with angled side plates and runs similar to the foot on the conventional parabolic subsoiler, only directly under the row.

Reprinted from Proceedings of the 1994 Beltwide Cotton Conferences pg. 531
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998