| 摘要 |
FIELD: agricultural amelioration, in particular, drop irrigation equipment. ^ SUBSTANCE: dozer-dropper has plastoelastic valve provided in irrigation pipeline. Plastoelastic valve adapted for supplying of water into injector has detachable casing with water supply channel formed as helical groove with conical openings at its surface, said openings being adapted for connecting helical channel with casing outer surface. Diameter of conical opening joined with said channel is smaller than that at casing outer surface. ^ EFFECT: increased yield of farm crops and reduced irrigation norms. ^ 2 dwg |
