| 摘要 |
A sowing unit comprises a frame, sowing sections, a liquid-fertilizer tank with a doser, feed pipes with distributing elements and unilateral valves, soil looseners and fertilizer scraper bars. Each of the fertilizer scraper bars in the longitudinal-vertical plane comprises a support, on the front side of which a double-sided blade with equally inclined sides, larger in size, is arranged at the upper level, and at the lower level a similar blade of the lesser size is arranged. Cutter elements of the varying thickness are welded to the back sides of said blades on the both sides from the middle thereof, behind of which distributors of liquid fertilizers are mounted. |
