Single Pass Raised Bed Preparation System
The disclosed single pass raised bed preparation system makes use of one or more rows of adjustable height compact discs ( 4 ), to mulch up stubble and loosen the soil in the depressed furrows prior to the action of a bed-forming implement ( 6 ) mounted behind the discs. At the same time the raised beds are cultivated by two rows of compact discs, with the second row ( 2 ) opposite handed to the leading row ( 1 ). A roller or crumbler ( 7 ) levels and conditions the beds, so that both the beds and the furrows are restored in a single pass to a condition ready for sowing.
1 . A system of soil cultivation to prepare in a single pass, a pre-existing seed bed consisting of alternate raised beds and depressed furrows, which incorporates one or more rows of ground driven compact tilling discs set to operate in the furrows at the required lower depth to loosen compacted soil on the sides of the furrows, and in the raised beds at a shallower depth to mulch and loosen the soil.
2 . A system of soil cultivation as described in claim 1 in which the bed surface is prepared by two rows of compact disc blades set at an angle with the second row opposite-handed to the leading row.
3 . A system of soil cultivation as described in claim 1 which includes a device to restore the bed and reshape the furrow. This device can be either pairs of rotating disc blades set at opposing angles, or a ditching share that can be adjusted for height, to part the soil and reconstitute the furrow.
4 . A system of soil cultivation as described in claim 1 in which the implement is used to restore the bed and furrow shape consisting of appropriately shaped disc blades
5 . A system of soil cultivation as described in claim 1 in which the surface of the bed is levelled and conditioned by a roller arrangement or crumbler following the tilling discs, which can be placed before or after the furrow-former.
6 . A system of soil cultivation as described in any of the claims 1 , 2 , 3 , 4 and 5 , in which the disc blade depth relationship can be adjusted hydraulically or mechanically.
7 . A system of soil cultivation as described in any of the claims 1 , 2 , 3 , 4 , 5 and 6 , which incorporates provision for folding wings to extend the area that can be cultivated in one pass.
8 . A system of soil cultivation with reference to the accompanying drawing.