WORKING TOOL OF APPARATUS FOR APPLICATION OF FERTILIZER INTO SOIL Russian patent published in 2008 - IPC A01C3/06 

FIELD: agricultural engineering.

SUBSTANCE: working tool has disk equipped with spades and fixed on horizontal shaft by means of hub, said disk being connected to rotational drive, and immovable housing with windows in lower and upper part thereof. Restricting device is positioned centrally of disk, on working side, in axial alignment with axis of rotation. Trough-shaped spades are positioned on disk and inclined to side opposite relative to direction of rotation. Spades are positioned on disk in five rows, three in each row, so that they define in each row cascade with gradient equal to height of spade in each step provided that each spade is inclined at similar angle in each row. Window in lower part of housing is arranged at an angle of 35 deg to horizontal plane, and window in upper part of housing is arranged at an angle of 15 deg to horizontal plane. Charging window in wall is extending from housing lower part to shaft of disk having width equal to diameter of restricting device base and is rounded in its upper part in accordance with size of radius of said base.

EFFECT: increased precision in dosing of fertilizers and uniform distribution of fertilizers during application thereof into soil.

2 dwg