The utility model refers to agricultural machinery, in particular to coulters for sowing seeds of agricultural crops.There is a known coulter [1], including a hollow stance of circular cross-section with a diffuser obliquely placed under its exit window, divided by fan-shaped divergent ribs onto the troughs, the width of the receiving trims of the troughs being equal, and the width of their trims cut off in each subsequent trough away from the longitudinal axis coulter by an amount equal to 0.87 of the width of the previous (analog). The disadvantage of this coulter is its movement under a layer of soil with a high specific resistance.Of those known to the closest in technical essence is the opener for subsoil-spreading [3], which consists of a pointed paw, a seed-tube stand, a seed scatterer located under the outlet of the seed-tube stand. The seed diffuser is made in the form of a cone in the vomer, equal parts of the width of the opener capture correspond to equal parts of the cross-sectional area of ??the inner cavity of the seed-tube stand, for uniform distribution of seeds along the width of the opener.The purpose of the useful model is to increase the uniformity and quality of scattered, subsoil crops.The goal is achieved by the fact that the opener, which includes a closed-type lancet, a tube-post-seed pipe and a seed distributor with concave surfaces, according to a utility model, the seed distributor is in the form of a cone with a profiled concave surface, with the seed distributor one edge, the plane made on the pyramid, is tightly fixed to the tube-seed tube, and the curvature of the lower part of the tube of the vas deferens corresponds to the profile of the concave surface of the figure. The seed distributor is made of polyamide.This type of coulters for subsoil spreading provides a uniform qualitative distribution of the seeds in the soil.Полезная модель относится к сельскохозяйственному машиностроению, в частности к сошникам для посева семян сельско
