| 摘要 |
FIELD: agriculture.SUBSTANCE: on a slope, across the surface drain along a curved line, all points of which have one and the same height above the initial level surface, slots are cut with the help of a lever spade. After introduction of the implement into soil, the slot is expanded, afterwards with the help of a return spring the implement is removed from soil and moved to another working position. At the same time rods of the implement have a tee cross section reducing to the end. The inner space of slots is filled with filtering material, such as sand.EFFECT: method makes it possible to increase efficiency of erosion-preventive protection of slopes and reduce physical load.5 cl, 5 dwg |
