Abstract: A method of soil preparation simultaneously ploughs soil and tills soil ploughed in a previous pass. An apparatus for tilling soil provides tilling members mounted for deployment on either side of a tractor. The tilling members on one side of the tractor may be brought into engagement with the soil while tilling members on the other side of the tractor are lifted away from the soil. The tilling members are located to coincide with an adjacent strip of land ploughed in a previous pass of the tractor.

Abstract: A wheel track closing device is mounted on a tractor for closing the wheel tracks formed by self-propelled irrigation systems. A first soil mover is positioned at the front of the tractor and moves soil laterally to the wheel track from one side thereof, with the soil being moved thereinto being compacted by the right front wheel of the tractor. A second soil mover is mounted at the right side of the tractor between the right front wheel and the right rear wheel and moves soil, from the other side of the wheel track, into the track with the soil that has been moved into the wheel track being compacted by the right rear wheel of the tractor.