DEVICE FOR LAYER-BY-LAYER APPLICATION OF MINERAL FERTILISERS Russian patent published in 2013 - IPC A01C7/20 A01B49/06 

FIELD: agriculture.

SUBSTANCE: invention relates to the agricultural machinery industry, in particular to working elements for subsurface application of mineral fertilisers together with subsurface tillage. The device comprises a rack, a shoe, right and left plowshares, a chisel, a funnel for receiving fertilisers. The funnel comprises a fertiliser tube, an air duct, and a rectangular pipe. The rectangular pipe is divided into two symmetric channels of different lengths with tiered location of their bases. Under the channels the reflectors-diffusers are mounted. Inside the pipe the divider is pivotally placed. The divider is made in the form of an equilateral angle with a leash. The leash is placed along the bisector of the divider. The leash is pivotally connected to the upper arm of the chisel by an articulation linkage. The chisel is mounted pivotally on the shoe and is spring loaded relative to the shoe.

EFFECT: constructive solution enables to perform topsoil and subsoil application of mineral fertilisers in different depths of soil, depending on its fertility.

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