COMBINED CHISEL-SHAPED PLOUGHSHARE "VALVE-KNIFE" Russian patent published in 2011 - IPC A01C7/20 A01B49/06 

FIELD: agriculture.

SUBSTANCE: invention relates to passive working elements of agricultural machines and may be used for sowing. Structure comprises disk ploughshare with seed tube and fertiliser tube and two chisel-shaped hoes. Hoes are fixed with the help of plates to leashes and are arranged symmetrically in vertical and horizontal planes. Distance from axis of disc ploughshare to the right and left chisel-shaped hoe makes 0.075 m. Such arrangement of hoes provides for local application of fertilisers in the form of vertically arranged tapes with distance between them, equal to 0.15 m, and arrangement of tapes aside and below seeds. Fertiliser tube of each chisel-shaped hoe has a skew cut and is equipped with valve-knife fixed in lower part.

EFFECT: invention will make it possible to provide for matching of pre-sowing cultivation, sowing and application of fertilisers, aiding in provision of bursting sprouts due to oriented arrangement of fertilisers relative to root system of plants.

4 dwg