Abstract: A plurality of sand fighter rotor units are mounted to a folding frame upon a tractor. Each rotor unit operates in the furrows between rows of crops in an agricultural field. Each rotor unit has a plurality of inboard spiders mounted on an axle between a pair of bearings, and a plurality of outboard spiders mounted on short collars attached to the axle outside the pair of bearings. The prongs of the outboard spiders are shorter than the prongs of the inboard spiders. The outboard spiders are adjustable so that they may be placed close to the growing crops without coming into direct contact with the plants. Attaching the rotor units to a frame such that individual sections of the frame may be folded so that the distal wings of the frame when folded are substantially parallel to a center section.

Abstract: A subsoil plowing implement having winged subsoil plows that break and lift the soil thereby loosening said soil. The plows are mounted so that an upper surface of the wing of the plow may be oriented at varying degrees of incline to horizontal. Spikes are located at a leading edge of the wing and a shank so that said spikes precede the wing and shank through the soil. The spikes initially break the ground and reduce the resistance that the wing and shank experience as they progress through the soil. A bevelled and sharpened deflection strip fixed to a leading edge of the shank making said shank more knifelike and allowing it to cut through the soil with reduced friction. By varying the arrangement and orientation of the plows, areas of loosened soil with different cross-sectional shapes are created.

Abstract: A sand fighter is drawn through an agricultural field by a tractor. The sand fighter has five sections. The outer or distal sections are folded manually. The inner or proximal sections are folded hydraulically. The center or medial section is connected to the power lift of the tractor so the entire sand fighter may be raised and lowered and drafted through the field.