| 摘要 |
FIELD: agricultural engineering. ^ SUBSTANCE: apparatus has frame, suspension brackets, carrier wheels with screw mechanisms, tines with hoes arranged in axially symmetric manner on frame longitudinal bar, and mellowing rods fixed on tine. Free ends of rods are formed rounded. Lower ends of mellowing rods are alternatively arranged in equally spaced relation with respect to hoe blades. Upper ends of mellowing rods are declined from advancement direction toward longitudinal-vertical plane of symmetry of tine. Mellowing rods maximally proximal to hoe blades have greater inclination angle to horizontal plane than mellowing rods maximally distant from hoe blades. Pitch of arrangement of lower ends of mellowing rods is equal to half the soil underdigging depth. ^ EFFECT: improved quality of roots extracted from soil. ^ 3 cl, 4 dwg |
