TOOL FOR SUBSURFACE APPLICATION OF FERTILISERS AND MELIORANTS Russian patent published in 2017 - IPC A01C23/02 A01B17/00 A01B13/08 A01B49/06 

FIELD: agriculture.

SUBSTANCE: tool for subsurface application of fertilisers and meliorants contains a combined wedge-shaped rack (1) with a fertiliser tube (8) mounted on its rear part, the lower part of which at the furrow bottom is sealed with a cover. In front of the rack (1), a vertical cutting disc (6) is placed, fixed to the side walls of the combined wedge-shaped rack (1) with the sides (4), with the possibility of height adjustment and with the possibility of free rotation by means of sliding bearings (5). The fertiliser tube (8) is made tubular, with the internal diameter ensuring the passage of the specified air-fertiliser mixture flow rate. In the side walls of the fertiliser tube (8), openings (9) are made, having a gripping sharpened edge and directed at an angle of 30…40° to the side wall of a furrow formed by the wedge-shaped rack (1). The openings (9) on the left side have a similar chamfer to prevent them from clogging with soil. The lower part of the combined wedge-shaped rack (1) is interfaced with a replaceable knife (3) having the blade opening angle of 60…80°, with the lower sharpening and the lower part surfacing with a hard wear-resistant alloy.

EFFECT: uniform distribution of fertilisers by the topsoil depth, increasing the yield of agricultural crops.

4 dwg